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Systemic Capillary Leak Syndrome

What is Systemic Capillary Leak Syndrome?

Systemic Capillary Leak Syndrome (SCLS) is an exceedingly rare, life- and limb-threatening disorder characterized by acute and severe recurrent attacks featuring a rapid fall in blood pressure due to the temporary leak of plasma out of the blood circulatory system.

This virtual community is dedicated to the memory of Judith (Judy) Lynne Davis (1958-2009) (judithdavis3), one of its founding members and a victim of a very severe episode of SCLS that took her life in November 2009.

We also mourn the death of nine other SCLS patient members of this community: Mario Gatto (mariogatto) from Naples, Italy, who passed away in December 2009; Denise Weston (mdweston) from Ohio, USA, who passed on March 2011; Bruno Galien (bruno) from Nord-Pas-de-Calais, France, who passed away in February 2012; Guy Allen Overland (allenoverland) from the Washington DC area, USA, who passed on January 2015; Marilyn Meaux (maire602) from Louisiana, USA, who passed away in March 2017; Julie Eady (jodono) from Perth, Australia, who died in September 2017; Cara O'Hagan (Cara) from Dublin, Ireland, who passed away in February 2018; David Colburn (davec) from Gainesville, Florida, who passed on in September 2019; Jeff Isenhour (jisenhour) from Wahington, DC, who died in September 2021; and Jim Evans (monkeyracing) from Calgary, Canada, who departed this life in August 2023.



  • Clarkson or Clarkson's Disease

Systemic Capillary Leak Syndrome (SCLS) is an exceedingly rare, life- and limb-threatening disorder characterized by acute and severe recurrent attacks featuring a rapid fall in blood pressure due to the temporary leak of plasma out of the blood circulatory system.

This virtual community is dedicated to the memory of Judith (Judy) Lynne Davis (1958-2009) (judithdavis3), one of its founding members and a victim of a very severe episode of SCLS that took her life in November 2009.

We also mourn the death of nine other SCLS patient members of this community: Mario Gatto (mariogatto) from Naples, Italy, who passed away in December 2009; Denise Weston (mdweston) from Ohio, USA, who passed on March 2011; Bruno Galien (bruno) from Nord-Pas-de-Calais, France, who passed away in February 2012; Guy Allen Overland (allenoverland) from the Washington DC area, USA, who passed on January 2015; Marilyn Meaux (maire602) from Louisiana, USA, who passed away in March 2017; Julie Eady (jodono) from Perth, Australia, who died in September 2017; Cara O'Hagan (Cara) from Dublin, Ireland, who passed away in February 2018; David Colburn (davec) from Gainesville, Florida, who passed on in September 2019; Jeff Isenhour (jisenhour) from Wahington, DC, who died in September 2021; and Jim Evans (monkeyracing) from Calgary, Canada, who departed this life in August 2023.

Acknowledgement of Systemic Capillary Leak Syndrome has not been added yet.

Fewer than one in one million people are affected by this disease. The onset of SCLS usually occurs in adults. However, SCLS can affect people of all ages, and our community has patients who were diagnosed with SCLS when they were minors, teenagers, or in their twenties.

Name Abbreviation
Clarkson or Clarkson's Disease Clarkson

Systemic Capillary Leak Syndrome (SCLS) is idiopathic, which means there are no known causes of the condition. Probably a mid-life gene mutation takes place that renders those affected vulnerable to SCLS, or else they are or become immune-deficient in some manner.

Most episodes are triggered by viral infections, including Covid-19, so most patients report having a runny nose, flu-like symptoms, gastro-intestinal disorders, a general weakness or pain in their limbs, swelling in the face or hands and feet, or very cold hands and feet, but others get no particular or consistent warning signs.

Name Description
Swelling swelling
Myalgia Myalgia is muscle pain
Rhinorrhea Rhinorrhea is a runny nose
Dizziness Dizziness
Lightheadedness Lightheadedness
Hypotension Hypotension is abnormally low blood pressure
Hemoconcentration Hemoconcentration is the decrease of the fluid content of the blood, with increased concentration of formed elements
Hypoalbuminemia Hypoalbuminemia is low levels of protein in the blood
Nausea Nausea
Excessive thirst Excessive thirst
Generalized edema Generalized edema
Decline in clinical picture Clinical picture declines rapidly within hours
Cold limbs and sweating Cold limbs and sweating
Rapid swelling and compartment syndrome Rapid swelling of all limbs with development of compartment syndrome, especially during IV fluid administration
Decreased urine output Decreased urine output
Vomiting Vomiting
Intestinal cramps Cramps
Diarrhea Diarrhea
Fatigue Fatigue
Headache Headache

The diagnosis of SCLS is made partly by exclusion, namely, by eliminating the possibility of other more common diseases, and is based on measurable, clinical symptoms such as hypotension (abnormally low blood pressure), hemoconcentration (a decrease in blood volume caused by the leak of plasma out of the circulatory system), hypoalbuminemia (abnormally low levels of a protein called albumin in theblood), and the presence of an unusual protein in the blood called a Monoclonal Gammopathy of Unknown Significance (MGUS).

Diagnostic tests may include blood and urine tests to check for abnormalities such as dark urine, concentrated blood, and low serum albumin in the blood.

  • IVIG 1-2 g/kg twice (two infusions) as soon as possible after arrival at the Emergency Room.
  • Methylprednisolone 125 mg intravenously one time, then repeated as needed.
  • Minimal use of intravenous fluids (IVF) in boluses and drips.
  • Phenylephrine or Norepinephrine for hypotension, early institution.
  • 50 ml of 25% albumin, then repeated as needed.
  • Continuous CVP monitoring, immediate (stat) and continuous (serial) lab work including createnine phosphokinase (CPK) and lactate.
  • Immediate orthopedics consult and compartment pressure measurement early on to prevent limb fasciotomies if compartment pressures or CPK are high. 
  • Venous doppler for deep vein thrombosis (DVT) prevention, may need full anticoagulation to prevent blood clotting.

Treatment of an episode of SCLS requires recognition that there are two phases. The first phase, which often lasts 24-72 hours, is called the leak phase.  A plasma and albumin leak from the capillaries into the tissue spaces causes swelling, especially in the muscle compartments of the extremities. The blood pressure falls and the red cells concentrate. This loss of fluid from the vascular system has similar effects on circulation as dehydration, slowing both the flow of oxygen carrying blood to tissues and the output of urine. Physicians should refrain from trying to stop or control the capillary leak except by administering immunoglobulins intravenously (IVIG) at the outset, possibly supplemented by injected steroids. Even though blood pressure readings may reach and remain at very low levels, oliguria should be tolerated and aggressive intravenous fluid administration should be avoided, because fluids will mostly leak out and cause compartment syndrome and other complications.

The goal of saline and vasopressors administered should NOT be to restore a "normal" blood pressure (or urine flow), but to maintain it at a minimal level sufficient to avoid permanent damage to vital organs. Measurement of central venous or arterial pressure in an ICU setting is often necessary to achieve this delicate balance. When too much fluid is administered, the result is excessive swelling, and the patient will usually require surgical decompression of the limbs. In this procedure, known as a fasciotomy, the skin of the arms and/or legs is incised to release the compressive pressure the retained fluid is having on blood flow to and from the extremities.

The second phase of the treatment is known as the recruitment phase, when fluids and albumin are reabsorbed from the tissues during at least a couple of days. In this phase, the capillary leak has ended and the main threat is fluid overload. If intravenous fluids were given in excess, they usually cause an accumulation of fluid in the lungs and around other vital organs. Most of the patient deaths happen during this recruitment phase so it is important that diuretics be administered to help patients discharge all the fluid previously given -- and to keep them from backing up, especially into the lungs.

Recent clinical experience suggests that administration of IVIG with minimal additional intravenous fluids, close to the start of an episode of SCLS, is a safe way to support patients during their leak phase and is associated with rapid clinical improvement.

As concerns episode prevention, two approaches have been tried: high-dose β-agonists like theophylline and terbutaline, and a prophylaxis with high-dose intravenous immunoglobulin (IVIG) infusions. Since 2005, most SCLS patients have been migrated from the former to the latter in Canada, Europe, the United States and beyond, because IVIG therapy leads to far superior results. IVIG infusions every 2 or 4 weeks (1-2 g/kg) prevent or minimize leak episodes far more effectively than any other therapy, and do not have the adverse side effects that treatment with high doses of β-agonists like theophylline and terbutaline entail.

The prognosis is uncertain and depends on (a) how well episodes are managed, in terms of preventing permanent damage to vital organs and extremities; and (b) the ability to prevent episodes altogether.

There are two main treatments to prevent episodes of SCLS. The oldest is the Mayo Clinic’s approach of a preventive therapy with theophylline (or aminophylline) and terbutaline tablets taken on a daily basis. However, these medications, meant to reduce endothelial hyperpermeability, have very unpleasant side effects, and often prove ineffective, providing partial and transient improvement. For the most part, this treatment has been abandoned.

The newest is the French preventive regimen, which involves monthly infusions of immunoglobulins (IVIG). By now there is ample evidence that IVIG (usually, 1-2 g/kg per month, administered over two consecutive days) has worked for many patients in Europe, the United States, and beyond for nearly 2 decades, thus having become the gold standard of preventive care.

Name Description
Medical help

Find yourself a compassionate physician, preferably a specialist in internal medicine or hematology affiliated with a major university hospital, willing to do his/her homework on this rare disorder (namely, read the literature and follow the instructions), and willing to consult with the few SCLS experts available:

In the United States,
Dr. Mark S. Pecker
Professor of Clinical Medicine
Weill Cornell Medical College
New York, NY
tel. 1646-962-2605

In Europe:
Prof. Dr. Zahir Amoura
Département de Médecine Interne
Hôpital de la Pitié-Salpêtrière, 47-83 Bd. de l'Hôpital, 75013 Paris
tél. 0033 1 4217 8001

Clinical Study Volunteer
Patients who have been diagnosed as having SCLS and who are at least 16 years old are wanted for participation in the only scientific study of the illness taking place anywhere in the world: at the National Institutes of Health in Bethesda, MD, right outside Washington DC. You must have a documented medical history including at least one acute episode of SCLS or else continuous symptoms of periodic hemoconcentration, hypotension and protein leakage. Have your primary doctor contact Ms. Robin Eisch at, before sending in the requisite letter of referral with your medical history and laboratory studies to the lead clinical investigator, Dr. Kirk Druey,, tel. 301-435-8875. Once accepted into the clinical research study, you will be invited to come to NIH and spend between 2 and 4 days there for the purpose of being examined, donating blood and a skin sample, and being subjected to various tests (e.g., clinical digital photography of your blood vessels). Depending on circumstances, you probably will have time off to do sightseeing in the capital area during your stay at NIH.


Please see the Disorder Resources section.

Meniere's attack shortly before IVIG treatment Created by kevinl1970
Last updated 15 Aug 2023, 12:58 PM

Posted by stedrick
15 Aug 2023, 12:58 PM


I think that it's worth noting autoimmune flares that co-occur with SCLS flares and/or IVIG treatment. Same regarding possible viral triggers.

The more anecdotal data available for case studies, the better the researchers can ponder the possible pathology and treatment.


Posted by kevinl1970
14 Aug 2023, 05:13 PM

Just curious if anyone in this group has Meniere's or other inner ear issues.

I've now had 12 infusions of IVIG on a 4 week schedule, and for the SCLS, it's worked wonders. I haven't felt this good in years.

On 7 occasions now, almost like clockwork, starting 5-7 days before my next scheduled infusion, I notice a change in my hearing that lasts a few days, which clears up, but that is usually followed by fairly bad veritgo, nausea, and vomiting, lasting 4-8 hours. This is a fairly typical Meniere's flair up. I had them for 25+ years, but it usually only happens once every 18-24 months before the IVIG.

My ENT doesn't have much advice, and neither does the hemotologist managing the IVIG treatments.

Meniere's is an autoimmune disease which is thought to cause fluid build-up / pressure in the inner ear. Together with the timing consistency, the attacks are probably related.  I know the primary concern is to prevent SCLS attacks so I have no plans to stop IVIG.

So just curious if anyone else in this group has had anything similar, and I will probably bring this up with either the specialist at the Mayo Clinic, or Dr Druey, or both.


Is IVIG becoming less effective in preventing episodes? Created by aporzeca
Last updated 4 Aug 2023, 04:00 PM

Posted by aporzeca
4 Aug 2023, 04:00 PM

Susan and Cristina, so sorry to hear about your persistent troubles!  If you wish to let Dr. Druey know about your troubles, you (or preferably your physician) must let him know directly, because to my knowledge, no, he does not read our posts here on RareShare.

Posted by stedrick
2 Aug 2023, 02:23 PM

I hope that Dr. Drury is able to follow this string for possible anecdotal data and case study development.

I began IVIG in February 2010 and felt significantly better. In order to decrease side effects, I have a half-dose every 14 days.

My observations:

1. Most SCLS sufferers have comorbitities [other conditions] whose pathology and/or treatment may cause edema and fatigue, and thus cloud the IVIG picture.

2. Many of us have suffered COVID episodes whose longterm, systemic impact is just now being studied.

3. Patients who experience longterm edema, such as SCLS, heart failure, and medications may also experience venous insufficiency over time.

4. Since I was diagnosed in 2010 and confirmed by Mayo Clinic in 2014, I have had several serious SCLS flares. I have also persistent mild edema that resolved overnight.

5. Over the last few years my edema has increased in my lower extrmities during the day and has resolved less and less overnight.This may be simply gravity and venous insufficiency.

6. During the pandemic I developed crushing fatigue and increased dysautonomia. I isolated but had 2 acute upper respiratory infections, and 3 episodes of pneumonia, one of which was acute COVID pneumonia.

7. I can tell the difference between an SCLS flare, where I swell all the way up my body, including my face, gain 8-15 pounds of "water weight", and daily edema where my swelling is mostly in my legs. In both circumstances, my feet are the size of American footballs and extremely tight. I try to elevate as much as I can.

8. It's impossible for me to say whether my daily edema and crushing fatigue are related to COVID or other chronic illnesses.

9. I have found very few academic studies correlating COVID with decreased IVIG efficacy; or COVID with various comorbidities. However, I have found learned articles that identify dysautonomia as a symptom of COVID and/or COVID as a trigger of dysautonomia. A recently announced study is an attempt to treat "long" COVID, but does not mention IVIG nor SCLS.

Bottom Line: There is not enough data to surmise or conclude that, for SCLS patients, IVIG loses efficacy over time. The concern certainly deserves to be studied along with the interplay between SCLS and other comorbities.

Susan Tedrick

Posted by gandcburns
1 Aug 2023, 07:14 PM

Update: I have been swollen for 3 weeks now.


My family recently drove to North Carolina from Kansas City. I had no trouble with the drive there and the week in North Carolina with leaking.  I wore my compression socks to avoid swelling from sitting for the long drive. However, on the return trip my legs began to swell, even though I had the compression socks on. I also had an ulcerative colitis flare up while in NC. I thought the swelling would go down after a day or two, but it has been three weeks now. It had been a month since my last Ivigg treatment. I began subQ treatments two weeks ago (20g every two days) and have not seen any improvement with the swelling. I still have 4 more treatments to finish out the month, and am hopeful that once my Ig levels are stable the swelling will go away. We have had horribly hot temperatures in Kansas City for the past two weeks as well. I am also unable to do my job well. I swell more with activity. I have not been light headed, but I am very uncomfortable with the 15lbs of extra water weight on my body. My thoughts are all over the place, becasue there are so many variables as to why this is happening. I do not know what is causing this swelling to linger. Is it COVID complications to my immune system or capillaries making the ulcerative colitis send me into a leak? Is the heat causing me to swell? Is exercising making the swelling last longer? Is it because my Ivigg levels became too low?  I have had ulcerative colitis flare ups in the past, and they don't send me into a leak. I have tried taking ice baths which help for a short period. Has anyone experienced this type of swelling before? If so, how long did it last? What did you do to relieve pain in your joints from swelling? I am curios about trying diuretics? Thank you for any insight.

Cristina Burns

View Full Thread (17 more posts)
Change of email address on Rareshare? Created by gandcburns
Last updated 26 Jun 2023, 03:14 AM

Posted by gandcburns
26 Jun 2023, 03:14 AM



I did what you suggest in your message many months ago and never received  a response from Rareshare. It was my mistake to make a discussion forum topic on this matter. I started it thinking perhaps someone else may have had the same issue. Then I thought better of bothering people with my administrative matter. Many times I see responses or topics duplicated on this website. I realize that it is not done on purpose. It is a computer glitch. Thank you for always trying to help.











Posted by aporzeca
25 Jun 2023, 04:37 PM

No need to create a new Discussion Forum topic -- never mind two of the same -- for a purely administrative matter.

Once you are logged in, go to your username on the top right of the page, scroll down and click on the option "Contact Us," then fill out the form requesting the change in your email address on record and submit it.

I am new To CLS and IVIG, How do you live your daily life? Created by rlevesque21
Last updated 25 Jun 2023, 09:27 PM

Posted by aporzeca
25 Jun 2023, 05:39 PM

Welcome to our SCLS Community, Rick!

I read your profile page and I'm sorry to learn that you've had two episodes and twice underwent eight-compartment fasciotomies!  I also suffered through the same experience back in 2007 and 2009, so I have some idea of what you and your loved ones endured.

The only good thing about the fasciotomies is that if they performed them in time, they should have prevented the impairment or loss of muscles and nerves in your four extremities.  In my case, they didn't perform them quickly enough during what turned out to be my very first episode in 2005, so I suffered permanent damage in all four extremities and thus I'm partially disabled.  (They didn't realize that I was bleeding internally into my arm and leg muscle compartments until much damage was done.)

In those days 15-20 years ago, there was little to no awareness about SCLS in the medical community -- never mind there being a good protocol for how to manage our episodes, not to speak about how to prevent them.  Getting a diagnosis of SCLS was the equivalent of getting a death sentence, because the natural progression of the syndrome was for us to go through more, and more frequent, episodes until one of them killed us, due to heart or brain damage.

But you and most current members of this SCLS community are fortunate that we've come a long way since then, and now we know not only how our episodes should be managed, but also how to minimize the incidence of episodes.  Therefore, most of us are able to live 10, 15, 20 or possibly more years after surviving our first episode.  So that's the first piece of good news.

To make a long story short, if/when we have a confirmed episode of SCLS, we are to be given two doses of IVIG (intravenous immunoglobulins), 1 gram/kilogram of body weight each infusion -- ideally, the first one in the Emergency Room within the first 2 hours after arrival, the second 18-24 hours later in our hospital room. 

And that's pretty much the only fluids we should receive, because it is the fluids (usually saline) administered in the hospital that harm our muscle compartments -- because we're going through the leak part of the cycle.

Therefore, even if you experience additional episodes of SCLS, the two fasciotomies you endured can and should be the last ones you ever suffer through.  So that's a second piece of good news.

Please go to and read all about it, then download the pioneering article at 

As it advises there (, read the article, then email it or print it out and give it to your main physician and also to your immediate family members, and then print out extra copies for yourself and carry them with you wherever you go -- so that you or your family can give it to the first nurse or doctor you meet the next time you experience an episode of SCLS.

Now with regards to the prevention of episodes of SCLS, the third piece of good news is that most episodes can be prevented by regular infusions of IVIG, 1-2 gr/kg every 4 weeks or alternatively 0.5-1 gr/kg every 2 weeks.

Most of the episodes of SCLS are triggered by viral infections, and chances are pretty good that if you get a viral infection in the days or few weeks after your infusion – when your “tank” is pretty full, so to speak – then the extra immunities you’ve received should be able to prevent the cascade of internal events that triggers an episode of SCLS. See discussions at,, and

However, experience shows that (a) in the wake of a viral infection (especially the early versions of Covid, which were very powerful), it is unusual but possible to get an episode even soon after you’ve received an infusion of IVIG, and (b) it’s always true that “an ounce of prevention is worth a pound of cure.”

Therefore, in my case, for example, since in recent years I’ve had 3 episodes of SCLS in the wake of 3 different viral infections, see, I practice prevention and put on an N95 mask when I know or realize that someone I have to meet has a cold or some other illness, and I avoid large crowds in indoor settings especially during wintertime, when viral infections tend to thrive. It’s a small price to pay for the privilege of living as episode-free as possible.

I hope this information helps you and others wondering the same.


Posted by kevinl1970
23 Jun 2023, 01:20 PM

I was diagnosed in March 2022, and started IVIG in Oct 2022.  For the most part I've been doing things normally, and wore a mask up until a few months ago.   I've never been diagnosed with Covid so I'm not sure how I would react.  Probably about 50% of my SCLS attacks (6-7 out of 12) were related to illnesses or vaccinations, so I'm still kind of cautious when it comes to large crowds. I still avoid those for the most part (concerts, large work related meetings), all though I don't have any scientific reason to do so. It's mostly just playing it safe.

On the other hand, I probably had a small, continous leak, and since the IVIG started, I'm feeling so much better in almost every aspect of my life and have been much more active in getting out, exercising, cycling, hiking, etc. So that has changed, for the better. 

Posted by AndreasGunsser
23 Jun 2023, 05:35 AM


I  was finally diagnosed in 2016 and receive IVIG since then. I live a rather normal live, with no extra precautions (since Covid is more or less over).

if I did not do so, I am pretty sure, that I would get huge psychological problems.

There is one exception: I do not travel to far away abroad, because I would get in trouble with the health insurance abroad. Probably they would not cover SCLS-related treatment (e.g. an attack, I am not talking about the monthly IVIG), and an ICU stay would be extremely expensive.

I live in Germany, and traveling to France, Austria etc is no problem. But I hesitate flying to the US or so.






View Full Thread (1 more posts)
Change of email address on Rareshare? Created by gandcburns
Last updated 24 Jun 2023, 05:41 PM

What's a minor leak? Am I having one? Created by jenh
Last updated 22 Jun 2023, 12:23 PM

Posted by gandcburns
22 Jun 2023, 12:23 PM

Hello Jen,


This is how minor leaks have presented for me over the years. The leak usually begins with swelling in my calves, from there my legs may or may not also swell. This swelling has always been the first thing I feel, even before I feel any symptoms that I am fighting an infection. Usually within 3 days the swelling dissapates. During a minor leak I can still do physical activity, but I try to take it down to less strenuous activities like Yoga. Activities that are more strenuous exacerbate the leak.  In the past, if the leak was accompanied with light headedness or if the swelling was felt in my arms, I knew it was going to be a significant leak and would go to the hospital for an extra infusion of IVigg. However, lately I am light headed more often than not, so I do not use that as a distinction between a mild or serious leak. If my blood pressure drops significantly or if light physical activity is hard and makes me breathless, I know I am having a serious leak. Over the years I have thought abut getting a hemacue machine to test my hemaglobin levels. I keep putting it off, but since I am leaking after every infusion it may be wise for me to get one and not count on listening to my body as the only way to distinguish if I am having a serious leak. I hope this helps.

Stay Well,

Cristina Burns

Posted by aporzeca
20 Jun 2023, 01:38 AM


Sorry to hear about what may be minor SCLS leaks, and I would have suggested that you should have your main physician contact Dr. Druey at NIH, because doctor-to-doctor consultations can be conducted at a higher level of medical precision, and in any case, you want to loop in your doctor because he/she would be best placed to follow upon the advice received, adjusting your medications and monitoring your situation.

There is such a thing as "chronic" SCLS, whereby patients experience very frequent but short-lived and light episodes most of which don't require hospitalization.  They do affect one's quality of life because they are disruptive, and when it happens to SCLS patients who are receiving IVIG, then there is little else that can be done for them.  For some examples of prior mentions of the problem here in
RareShare, check out the search "chronic SCLS" at 

Good luck to you and please share what you learn!

Posted by jenh
18 Jun 2023, 12:39 PM

Hey everyone! I've had three life-threatening attacks (2002, 2018, and 2021) and an unknown number of "minor leaks." I've noticed several of you mention "minor leaks" in your posts. How are you defining a "minor leak?" I'm wondering if I'm currently having one . . . Below is a message I sent to Dr. Druey last night.

Hi there. I’m keeping a close eye on myself and just wanted to touch base.
I didn’t sleep well Thursday night but I was fatigued beyond normal yesterday (Friday). I’m still very tired today. I also noticed I was drinking more than usual all day yesterday. Less so today. Urine output is good. I felt a little off (brain foggy) when I was out this morning and decided to come home earlier than planned. I slept a little and ate a giant cookie which seemed to perk me up.
All this could be totally unrelated to SCLS. I did just complete a very stressful school year this week. It could be my body is just catching up. But I know these are early warning symptoms. I don’t have any others. I’ve been taking my blood pressure and it’s been normal to a little high. I haven’t been sick recently. No swelling. No stomach pain.
If anything changes we’ll go to the ER immediately. I will tell the docs there to call you right away.
I’m due for IVIG next Friday.
Is there anything else I should be doing?

Is it possible these "early warning symptoms" are a minor leak? I feel more normal right now (Sunday morning), but I still plan on taking it easy today. Before my other attacks, I noticed things like extreme fatigue and excessive thirst, but I just kept pushing myself. I had work and responsibilities. I also didn't know I had this crazy syndrome! I'm wondering if not slowing down was what turned minor leaks into a major attacks. 

What have your experiences been? Thanks!


Recently diagnosed with Capillary Leak Syndrome - looking for help Created by acderusha
Last updated 23 Apr 2023, 04:20 PM

Posted by acderusha
23 Apr 2023, 04:20 PM

Arturo and Gail,


Thank you both so much for your outreach and replies.  I am so greatful to have found this community and the information you have all provided.  Thank you Arturo for the very detailed information, links, articles and deep dive into navigating the insurance game.  And thank you very much Gail for sharing your personal experience and story with myself and Rick.  Rick is newly diagnosed and dealing with this condition and the fact that this group exists and is engaging means the world to new members. I will have Rick join the group as I am sure he will want to know and share with people who have shared his experinence and can relate first hand.  We are lucky this forum was created and we are forever members of this CLS famliy.


We are very grateful for all your support and information

Angie and Rick

Posted by aporzeca
21 Apr 2023, 03:52 PM

Angela and Rick, welcome to our SCLS Community!

I'm sure we'll be able to help you. All of us have faced, and for the most part have overcome, IVIG insurance-coverage obstacles.

First, however, do yourselves a favor and please provide as much information as possible on your husband’s medical journey to date in your profile page,, as all other members of this community have done.

Little details like which hospitals and which insurance companies you have dealt with might enable us to assist you better because it's all a case-by-case situation.

Second, you should also check out past discussions of this or related issues, as in and and

I see that you live in the USA, where IVIG has been an FDA-approved biological for many decades. The bad news is that when it comes to IVIG for SCLS, that is NOT yet an FDA officially approved indication -- and thus IVIG for SCLS is what's called an off-label use of IVIG, which means that insurance companies have discretion to approve or deny it.

The good news is that insurance companies usually first deny but then approve such off-label use whenever the appeal is a convincing one, namely, whenever the appeal mentions the cost of past hospitalizations which could have been prevented, includes examples of authoritative medical literature, and comes with supportive letters from your husband's own physician and, especially when your own doctor is not affiliated with a major medical center or is not familiar with prescribing IVIG, from one or more renowned or highly reputable physicians.

I can send you via email examples of such authoritative medical literature. I can't do that via this website, but I can do it -- and have done it countless times -- directly in reply to an email request to my personal email address, which is:

As concerns obtaining letters from highly reputable physicians in the USA, the most persuasive letter your husband’s insurance company can possibly get is one written by Dr. Kirk Druey, the world’s leading published expert on SCLS, who is on the staff of the U.S. National Institutes of Health, see for his bio and for his email address and office phone number.

Therefore, I suggest that you have your husband’s physician call or write Dr. Druey ASAP to request such a letter, and if he/she will not, then for you or your husband to do so yourself.

Of course, Dr. Druey cannot write such a letter without having received copies of your husband’s medical and hospitalization records, and he might also rightly insist that your husband schedule an appointment to come to NIH (located in Bethesda, MD) in person to be met and examined by Dr. Druey and his colleagues. Therefore, you and your husband’s doctor will have to take steps to make it possible for Dr. Druey to write such a supportive letter to his insurance company.

Good luck and let us know how it goes!


Posted by Gailkrall
21 Apr 2023, 11:18 AM

I know it is frustrating. I had 4 episodes before I was diagnosed. In addition  I even went to Mayo Clinic, but because I live in texas they could not treat me. I had to find a local doctor that was willing to take on my rare case. My primary has been of little help. After months,
I found an allergist: immunologist that was willing and actually Interested in my case. She worked with Dr. Druey  and did a peer to peer with my insurance  to get them to fill medication. So after 8 months of my last  9 day ICU episode I finally was able to get my IVIG infusions. 
you must be your own advocate  with a doctor that is willing to do the extra steps. If you are in Texas I can give you information privately.




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Possible Triggers Created by amj
Last updated 20 Feb 2023, 11:59 AM

Posted by aporzeca
20 Feb 2023, 11:58 AM

I'm so sorry to hear about your unfortunate situation.  Because your clinical presentation is complex, and involves both SCLS and Lupus, I am going to try to arrange for you to be seen by physicians at the largest hospital in Paris, the Hôpitaux Universitaires Pitié Salpêtrière, which is also the teaching hospital of Sorbonne University's medical school, where there happen to be, and I know, experts on both SCLS and Lupus.  I will reach out to you separately.

Posted by amj
17 Feb 2023, 04:57 PM

Dear Community Members,

I hope you are doing well.

I am writting to get some information about SCLS triggers. I was diagnosed almost three years ago and have been with IVIG treatment since April 2021. 2g per kg every 3 weeks, plus steroids plus mycophelonic acid (plus  hydroxychloroqine to treat lupus) For some months, I also took methotrexate but I stopped since it caused me stomach problems.

IvIG has been life changing but I am not able to perceive additional benefits from the rest of drugs besides steroids when a minor leak starts. IvIG has been life changing but I live with many difficulties such as muscular and articular pains, diarrheas, etc. However, during the last three months I am having a rough time. Constant feeling of dizyness and weakness, stomach problems, etc, in a way that is disabling. Additionally, I have broken my left shoulder (no surgery needed for the moment).

My doctors are trying very hard but we are at a deadpoint. 

All these symptoms, coincided in time and then, became chronic with an MRI, a double CT scan with contrast, the flu and pneumococcus vaccination. Two months have passed and I am not feeling any better. 
Have any of you had a similar experience with similar triggers? 

Thank you very much in advance

Is the IgG parameter the most important ? Created by HansDeWit
Last updated 15 Jan 2023, 10:57 AM

Posted by claude53
15 Jan 2023, 10:57 AM

Hy Hans, I totally agree with Arturo's opinion. In my case, I do not check the residual IgG level before my monthly infusion (2 g / kg). On the other hand, I check the immunological parameters (IgA, IgG, IgM, Kappa and Lambda light chains and their ratio) once a year, just before the prophylactic perfusion, to anticipate the occurrence of a myeloma... because I have been carrying a MGUS (IgG Kappa) for 20 years. Best regards. Claude

Posted by aporzeca
13 Jan 2023, 10:43 PM

Hans, sorry for the misunderstanding.  My information is that IgG levels are not a reliable indicator of how much protection we have against an episode of SCLS.  (IgG is the most common type of antibody found in our blood.)  Experience shows that the protection provided by IVIG varies among SCLS patients, because they seem to need different amounts of IVIG in order to prevent episodes of SCLS.  There has not been a great deal of experimentation, but some appear to need 2 g/kg/4 weeks -- or in rare cases, even a little more -- while others remain stable with 1.5, 1.0, and in rare cases even 0.5 g/kg/4 weeks.  (By getting 1 g/kg/3 weeks, you are getting the equivalent of at least 1.3 g/kg/4 weeks.)

As you can read in, a group of European physicians has recently published the results of a first systematic survey of the experience with reducing the dosage of IVIG, and of ending the administration of IVIG, in patients with SCLS.  To make a long story short, IVIG tapering was not statistically associated with increased person-year incidence of attacks, while IVIG withdrawal, on the other hand, was associated with increased mortality and a higher rate of recurrence in SCLS patients.  A summary of and link to the article is included in our Disorder Resources section, see

What has also become clear in recent years is that we have stronger protection against episodes soon after our infusions -- no matter the amount we receive -- and that means we have weaker protection against episodes in the week before our next infusions.  Consequently, we must be more cautious in terms of wearing a mask and keeping our distance from crowds, especially indoors, towards the end of our infusion cycles, because we are more vulnerable to viral infections.  This is one of the lessons that we should draw from the recent article "Management of Acute Episodes of Clarkson Disease (Monoclonal Gammopathy-Associated Systemic Capillary Leak Syndrome) With Intravenous Immunoglobulins," see

Posted by HansDeWit
13 Jan 2023, 09:29 PM

“Thank you very much for your reply, but I was misunderstood: I was not asking about the monitoring of the MGUS but about whether the measurement of our IgG levels is a reliable indicator of how much protection we have against an episode of SCLS.


Is it a good thing that my IgG levels even before my infusion of IVIG are relatively high?  I ask because I receive 1 g/kg of IVIG every 3 weeks, rather than 2 g/kg, so I wonder if that is enough.”

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First IVIG infusion scheduled Created by Cara Cozine
Last updated 10 Jan 2023, 04:46 AM

Posted by Cara Cozine
10 Jan 2023, 04:46 AM

Thank you both for your responses.

I will most certainly consider reaching out to Dr. Druey. He must be very approachable for you to suggest this.  I find this to be true of doctors who are truly passionate about their niche speciality.

My local hematologist seemed to understand capillary leak but did not realize this was a syndrome or that it was associated with MGUS. I don't fault him for not knowing, but I also don't feel he is the best person to ask questions of. 

Thanks again.



Posted by Cara Cozine
10 Jan 2023, 04:46 AM

Thank you both for your responses.

I will most certainly consider reaching out to Dr. Druey. He must be very approachable for you to suggest this.  I find this to be true of doctors who are truly passionate about their niche speciality.

My local hematologist seemed to understand capillary leak but did not realize this was a syndrome or that it was associated with MGUS. I don't fault him for not knowing, but I also don't feel he is the best person to ask questions of. 

Thanks again.



Posted by aporzeca
9 Jan 2023, 04:23 AM

Cara, here are in brief my answers to your questions:

1) About how many people are active members of this board? Ballpark figure?

More than 400 people are registered but we don't know how many read the posts without contributing to them.  I would say that 20-30 people put in questions or comments at least once a year.

2) Do you continue to mask and use great caution to avoid crowds or sick people? Or after receiving IVIG infusions have you relaxed your caution around others and just stay clear of obviously sick people? 

Yes and no, respectively, and I am much more cautious during the last week before my next infusion than during the first three weeks -- because we are, in fact, more vulnerable to infections when we run low on IVIG in our blood, see

3) and 4) Does anyone else run low-ish platelets? Just wondering if it is directly related with this syndrome? Or with MGUS?  Do platelets leak or concentrate during attacks? And  Is anyone else being treated for B12 deficiency?

I recommend you direct these questions to Dr. Kirk Druey, the world's most knowledgeable person on SCLS, at, tel. 301-435-8875, see  If you haven't yet been in contact with him, take this opportunity to reach out to him.

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Community News Articles
Default article

Hospitals, Doctors, Medical Teams: Navigating Barriers of Rare Diseases (Patient Navigation)

Publication date: 12 Sep 2016

Community: Systemic Capillary Leak Syndrome


Arturo Porzecanski, a rare disease patient and advocate, gives us some tips on navigating decisions involved in choosing hospitals, doctors, and medical teams.
Featuring Arturo Porzecanski (American University). (Music

Community External News Link
Title Date Link
What to Know About Capillary Leak Syndrome 09/10/2022
Community Resources
Title Description Date Link
Management of Acute Episodes of SCLS with IVIG

Management of Acute Episodes of Clarkson Disease (Monoclonal Gammopathy-Associated Systemic Capillary Leak Syndrome) With Intravenous Immunoglobulins

Abstract: Monoclonal gammopathy-associated idiopathic systemic capillary leak syndrome (ISCLS, or Clarkson disease) is a rare disorder defined by transient but recurrent bouts of hypotensive shock and anasarca resulting from plasma extravasation. Although prophylactic treatment with high-dose intravenous immunoglobulins (IVIG, 1–2 g/kg/mo) prevents most disease flares, its usefulness for acute episodes of ISCLS is unclear. Here the authors report the results of a retrospective study of subjects with acute ISCLS treated at or near the onset of symptoms with IVIG -- six U.S. and European patients during nine attacks. They found that the administration of IVIG with minimal additional intravenous fluids was safe and associated with rapid clinical improvement. IVIG given close to the onset of ISCLS-related symptoms is thus associated with favorable outcomes.

IVIG Tapering and Withdrawal in SCLS

Intravenous Immunoglobulins Tapering and Withdrawal in SCLS

Abstract: The authors conducted a retrospective, multicenter (more than 50 hospitals in Europe) study including all adult SCLS patients with an MGUS who received at least one course of IVIG, so that made up a universe of 59 patients of mean age 51 (±13 years) followed during the January 1997 to January 2022 period. The overall cumulative probabilities of 2-, 5-, 10- and 15-years survival were 100%, 85%, 72%, 44%, respectively.  IVIG was withdrawn at least once in 18 (31%) patients (W+ group) and never in 41 (69%, W- group). The cumulative probabilities of 10-years survival in the W+ vs. W- groups were 50% and 83%, respectively. The episode relapse rate and the median number of relapses in the W+ vs. W- groups were 72% vs 58% and 2.5 vs 1, respectively.  IVIG tapering was not statistically associated with increased person-year incidence of attacks using a mixed linear model.  IVIG withdrawal, on the other hand, was associated with increased mortality and a higher rate of recurrence in SCLS patients.

The Consequences of the Covid-19 Pandemic on SCLS Patients

The Consequences of the Covid-19 Pandemic on SCLS Patients

Abstract: The authors report on the fate of 30 known SCLS patients from Europe through mid-July 2021: 90% (27) of them were receiving IVIG on a regular basis, and two-thirds (20) of them were vaccinated. Five of the ten who were unvaccinated patients experienced an episode of SCLS and 4 of them died as a result, even though none had evidence of Covid-19 pneumonia. Covid vaccination was uneventful in 18 out of the 20 patients, including 2 who were not receiving IVIG. Two patients treated with IVIG had a relapse after a second dose of mRNA vaccine, with a favorable outcome in both cases. In addition, five patients were newly diagnosed with SCLS, none of whom were receiving IVIG: 4 of them were unvaccinated and had an episode of SCLS after contracting Covid, and the 5th one after receiving a first Covid vaccination. One of the unvaccinated four died, while the rest survived. In sum, the Covid pandemic has had serious consequences in patients with SCLS. Covid infections are associated with a high risk of SCLS episodes, and all Covid vaccines can trigger episodes. High-dose IVIG remains the only effective preventive treatment and should not be stopped during the pandemic. The risk/benefit ratio favors Covid vaccination in SCLS patients receiving IVIG.

Chronic SCLS treatment with IVIG: Case & literature

Chronic systemic capillary leak syndrome treatment with intravenous immune globulin: Case report and review of the literature 

Abstract: A rarely described chronic form of SCLS (cSCLS) presents as refractory edema, with pleural and/or pericardial effusions and hypoalbuminemia. These entities are differentiated by massive and periodic episodes of capillary leak, which can result in shock in SCLS, and chronic refractory edema in cSCLS. The etiologies of these disorders are poorly understood, but both acute and chronic forms often present with an associated monoclonal gammopathy. Flares of the SCLS have been reduced by treatment with intravenous immune globulin (IVIG). Only six cases of cSCLS have been reported, and previous treatments have included steroids, terbutaline, and theophylline. Based upon the reported responses of SCLS to IVIG, we present the case of a 54-year-old man with cSCLS where ongoing treatment with IVIG resulted in a marked and sustained improvement in the signs and symptoms of the capillary leak syndrome.

Handling Shock in SCLS: Less Is More

Handling shock in idiopathic systemic capillary leak syndrome (Clarkson’s disease): less is more 

Abstract: SCLS presents with recurrent potentially life-threatening episodes of hypovolemic shock associated with severe hemoconcentration and hypoproteinemia. Here the authors summarize 40 years’ experience in treating shock in Italian SCLS patients to derive a therapeutic algorithm. Records from 12 patients were informative for treatment modalities and outcome of 66 episodes of shock. Episodes are divided in 3 phases and treatment recommendations are the following: (1) prodromal symptoms-signs (growing malaise, oligo-anuria, orthostatic
dizziness) last 6-12 hours and patients should maintain rigorous bed rest. (2) The acute shock phase lasts 24-36 hours; patients should be admitted to ICU, placed on restrictive infusion of fluids favoring cautious boluses of high-molecular-weight plasma expanders when SAP < 70 mmHg; and monitored for cerebral/cardiac perfusion, myocardial edema and signs of compartment syndrome. (3) The post-acute (recovery) phase may last from 48 hours to 1 week; monitor for cardiac overload to prevent cardiac failure; in case of persistent renal failure, hemodialysis may be necessary; consider albumin infusion. Complications listed by frequency in our patients were acute renal failure, compartment syndrome and neuropathy, rhabdomyolysis, myocardial edema, pericardial-pleural-abdominal effusion, cerebral involvement, acute pulmonary edema and deep vein thrombosis.

A natural mouse model reveals genetic determinants of SCLS

A natural mouse model reveals genetic determinants of systemic capillary leak syndrome

Abstract: SCLS is a disorder of unknown etiology characterized by recurrent episodes of vascular leakage of proteins and fluids into peripheral tissues, resulting in whole-body edema and hypotensive shock. The pathologic mechanisms and genetic basis for SCLS remain elusive. Previous histological studies of skin and muscle of SCLS patients have failed to uncover gross abnormalities within the microvasculature that could account for this phenotype. Here the authors identified an inbred mouse strain, SJL, which recapitulates cardinal features of SCLS, including susceptibility to histamine- and infection-triggered vascular leak. They named this trait “Histamine hypersensitivity” (Hhs/Hhs) and mapped it to Chromosome 6. Hhs is syntenic to the genomic locus most strongly associated with SCLS in humans (3p25.3), revealing that the predisposition to develop vascular hyperpermeability has a strong genetic component conserved between humans and mice and providing a naturally occurring animal model for SCLS. Genetic analysis of Hhs may reveal orthologous candidate genes that contribute not only to SCLS, but also to normal and dysregulated mechanisms underlying vascular barrier function more generally. Future studies including assessment of expression and sequence of top Hhs candidate genes in SCLS patients and mice and their role in endothelial responses to inflammation will be essential to determine their contribution.

Intravenous Immunoglobulins Improve Survival in Monoclonal Gammopathy-Associated SCLS

Intravenous Immunoglobulins Improve Survival in Monoclonal Gammopathy-Associated SCLS

Abstract: We conducted a cohort analysis of all patients included in the European Clarkson disease registry between January 1997 and March 2016. From diagnosis to last follow-up, studied outcomes (e.g., the frequency and severity of attacks, death, and evolution toward multiple myeloma) and the type of preventive treatments administered were monitored every 6 months. Sixty-nine patients (M/F sex ratio 1:1; mean ± SD age at disease onset 52 ± 12 years) were included in the study. All patients had monoclonal gammopathy of immunoglobulin G type, with kappa light chains in 47 (68%).Twenty-four patients (35%) died after 3.3 (0.9-8) years. Fifty-seven (86%) patients received at least one preventive treatment, including intravenous immunoglobulins (IVIg) n = 48 (73.8%), theophylline n = 22 (33.8%), terbutaline n = 22 (33.8%), and thalidomide n = 5 (7.7%). In the 65 patients with follow-up, 5- and 10-year survival rates were 78% (n = 35) and 69% (n = 17), respectively. Preventive treatment with IVIg and terbutaline were the only factors significantly associated with survival in multivariate analysis. Neither the use of thalidomide nor theophylline was associated with improved survival. Five- and 10-year survival rates in patients treated with IVIg were 91% and 77%, respectively, compared to 47% and 37% in patients not treated with IVIg. Patients treated with IVIg were more likely to be free of recurrence, severe recurrence, and alive at the end of follow-up. Furthermore, all but one patient who did not experience a severe relapse were treated with IVIg. Since preventive treatment with IVIg was the strongest factor associated with survival, the use of IVIg is suggested as the first line in prevention therapy.

Whole Exome Sequencing of SCLS Patients

Whole Exome Sequencing of Adult and Pediatric Cohorts of the Rare Vascular Disorder Systemic Capillary Leak Syndrome

Abstract: The extent to which genetic abnormalities contribute to SCLS is unknown. The authors identified pediatric and adult cohorts with characteristic clinical courses and sought to identify a possible genetic contribution to SCLS through the application of Whole Exome Sequencing (WES). On the basis of 9 adult and 8 pediatric SCLS patients and available unaffected first-degree relatives, they did not identify a uniform germline exomic genetic etiology for SCLS. However, WES did identify several candidate genes for future research.

Idiopathic SCLS (Clarkson syndrome) in childhood

Idiopathic systemic capillary leak syndrome (Clarkson syndrome) in childhood: systematic literature review

Abstract: The authors performed a systematic review of the literature on Clarkson syndrome in subjects less than 18 years of age, and identified 24 reports, published since 1989, providing data on 32 otherwise healthy subjects, who experienced 67 well-documented episodes of SCLS. The condition affected more frequently girls (21, 66%) than boys, presented throughout childhood, and was preceded by a mostly viral illness in 75% of cases. The presence of a monoclonal gammopathy (MGUS) was never reported. Uncompensated circulatory shock, muscle compartment syndrome, acute kidney injury, pulmonary edema, and either pleural or pericardial effusion were, in decreasing order of frequency, the most common complications. Four patients died. In sum, SCLS develops not only in adulthood but also in childhood, but of potential significance is that in this age group the condition is not linked to an MGUS, and thus it could be that it does not play a pivotal pathogenic role.

Clinical Presentation, Management, and Prognostic Factors of SCLS

Clinical Presentation, Management, and Prognostic Factors of Idiopathic Systemic Capillary Leak Syndrome: A Systematic Review

Abstract: A total of 133 case reports (161 patients) and 5 case series (102 patients) of idiopathic SCLS were included in a survey of articles published through end-2016. The findings include that patients had hypotension (81.4%), edema (64.6%), and previous flu-like illness (34.2%). They were often misdiagnosed as having hypovolemic shock, septic shock, polycythemia vera, or angioedema. Thirty-seven patients died (23%) mainly because of complications from SCLS (78.4%). There were significant differences in the survival rates between patients who were treated with prophylactic b2 agonists, methylxanthines, and intravenous immunoglobulins and those who were not. The estimated 1-, 5-, and 10-year survival rate of patients treated with intravenous immunoglobulins was 100%, 94%, and 94%, respectively. The results of this review suggest that prophylactic use of intravenous immunoglobulins is the most effective treatment in reducing the mortality rate of SCLS patients.

The Clinical Picture of Severe SCLS Episodes Requiring ICU Admission

The Clinical Picture of Severe SCLS Episodes Requiring ICU Admission

Abstract: SCLS is a very rare cause of recurrent hypovolemic shock. Few data are available on its clinical manifestations, laboratory findings, and outcomes of those patients requiring ICU admission.  This study was undertaken to describe the clinical pictures and ICU management of severe SCLS episodes.  This multicenter retrospective analysis concerned patients entered in the European Clarkson's disease (EurêClark) Registry and admitted to ICUs between May 1992 and February 2016.  Fifty-nine attacks occurring in 37 patients (male-to-female sex ratio, 1.05; mean ± SD age, 51 ± 11.4 yr) were included.  Among 34 patients (91.9%) with monoclonal immunoglobulin G gammopathy, 20 (58.8%) had kappa light chains.  ICU-admission hemoglobin and proteinemia were respectively median (interquartile range) 20.2 g/dL (17.9-22 g/dL) and 50 g/L (36.5-58.5 g/L).  IVIG was infused during 15 episodes (25.4%).  A compartment syndrome developed during 12 episodes (20.3%).  Eleven (18.6%) in-ICU deaths occurred. Bivariable analyses (the 37 patients' last episodes) retained Sequential Organ-Failure Assessment score greater than 10 (odds ratio, 12.9 [95% CI, 1.2-140]; p = 0.04) and cumulated fluid-therapy volume greater than 10.7 L (odds ratio, 16.8 [1.6-180]; p = 0.02) as independent predictors of hospital mortality.  In conclusion, high-volume fluid therapy was independently associated with poorer outcomes.  IVIG use was not associated with improved survival; hence, its use in an ICU setting should be considered prudently and needs further evaluation in future studies.

Capillary leak syndrome: etiologies, pathophysiology, and management

Capillary leak syndrome: etiologies, pathophysiology, and management

Abstract: In various human diseases, an increase in capillary permeability to proteins leads to the loss of protein-rich fluid from the intravascular to the interstitial space. Although sepsis is the disease most commonly associated with this phenomenon, many other diseases can lead to a “sepsis-like” syndrome with manifestations of  diffuse pitting edema, exudative serous cavity effusions, noncardiogenic pulmonary edema, hypotension, and, in some cases, hypovolemic shock with multiple-organ failure. The term capillary leak syndrome has been used to describe this constellation of disease manifestations associated with an increased capillary permeability to proteins. Diseases other than sepsis that can result in capillary leak syndrome include the idiopathic systemic capillary leak syndrome or Clarkson’s disease, engraftment syndrome, differentiation syndrome, the ovarian  hyperstimulation syndrome, hemophagocytic lymphohistiocytosis, viral hemorrhagic fevers, autoimmune diseases, snakebite envenomation, and ricin poisoning. Drugs including some interleukins, some monoclonal antibodies, and gemcitabine can also cause capillary leak syndrome. Acute kidney injury is commonly seen in all of these diseases. In addition to hypotension, cytokines are likely to be important in the pathophysiology of acute kidney injury in capillary leak syndrome. Fluid management is a critical part of the treatment of capillary leak syndrome;  hypovolemia and hypotension can cause organ injury, whereas capillary leakage of administered fluid can worsen organ edema leading to progressive organ injury. The purpose of this article is to discuss the diseases other than sepsis that produce capillary leak and review their collective pathophysiology and treatment.

Idiopathic systemic capillary leak syndrome (Clarkson disease)

Idiopathic systemic capillary leak syndrome (Clarkson disease)

Abstract: The enigmatic systemic capillary leak syndrome (SCLS) named for Dr Clarkson is characterized by transient and severe but reversible hemoconcentration and hypoalbuminemia caused by leakage of fluids and macromolecules into tissues. Although less than 500 cases of SCLS have been reported in the literature since 1960, the condition is probably underdiagnosed because of a lack of awareness and a high mortality without treatment. Treatment of acute SCLS remains primarily supportive. Prophylaxis with IVIG appears promising, but this therapy is nonspecific and expensive. Mechanistic understanding of SCLS is in its infancy. As a result, clinicians today cannot predict when or how badly SCLS will flare; targeted therapies do not yet exist, and prolonged remission or cure remains elusive. Our working hypothesis invokes exaggerated microvascular endothelial responses to surges of otherwise routinely encountered inflammatory mediators. This emerging disease model lends itself to innovative patient-centered translational research in the ways highlighted above. It is our hope that detailed and personalized investigation of intraendothelial responses among individual patients with SCLS might illuminate novel genetic and molecular control mechanisms. In turn, such advances could deliver the diagnostic, prognostic, and therapeutic tools sorely needed to combat this devastating disease.

Sharing the Pain [of living with SCLS]

Sharing the Pain [of living with SCLS]

This article from The Washington Post newspaper tells the story of how this SCLS virtual community was created, the story of its founder and, more generally, of this fantastic RareShare site.


The Mayo Clinic Experience with SCLS

Idiopathic Systemic Capillary Leak Syndrome (Clarkson's Disease): The Mayo Clinic Experience

Abstract: Of the 34 patients whose records were reviewed, 25 fulfilled all diagnostic criteria for SCLS. The median age at diagnosis of SCLS was 44 years. Median follow-up of surviving patients was 4.9 years, and median time to diagnosis from symptom onset was 1.1 years (interquartile range, 0.5-4.1 years). Flulike illness or myalgia was reported by 14 patients (56%) at onset of an acute attack of SCLS, and rhabdomyolysis developed in 9 patients (36%). Patients with a greater decrease in albumin level had a higher likelihood of developing rhabdomyolysis (P=.03). Monoclonal gammopathy, predominantly of the IgG-kappa type, was found in 19 patients (76%). The progression rate to multiple myeloma was 0.7% per person-year of follow-up. The overall response rate to the different therapies was 76%, and 24% of patients sustained durable (>2 years) complete remission. The estimated 5-year overall survival rate was 76% (95% confidence interval, 59%-97%). In conclusion, SCLS, a rare disease that occurs in those of middle age, is usually diagnosed after a considerable delay from onset of symptoms. The degree of albumin decrement during an attack correlates with development of rhabdomyolysis. A reduction in the frequency and/or the severity of attacks was seen in nearly three-fourths of patients who were offered empiric therapies. The rate of progression to multiple myeloma appears to be comparable to that of monoclonal gammopathy of undetermined significance.

Genome-Wide SNP Analysis of SCLS

Genome-Wide SNP Analysis of SCLS.

Abstract: Polymorphisms in genes whose functional annotations suggest involvement in cell junctions and signaling, cell adhesion, and cytoskeletal organization, correlate with our previous mechanistic studies of SCLS sera. Such annotations provide a framework for future allelic discrimination strategies to validate top-ranked SNPs discovered here, as well as novel SNPs unique to the SCLS cohort detected by exome capture sequencing. Although the findings must be corroborated in a larger cohort, they provide a springboard for discovery of underlying pathophysiological mechanisms, biomarkers, and avenues for therapy.

IVIG in SCLS: A Case Report and Review of Literature

IVIG in SCLS: Report and Review of Literature.

Abstract: In recent years, IVIG has become a common first-line prophylactic therapy in most patients with benefits at the dose of 2 gr/kg once a month. Here the authors report the case of a 49-year-old male patient in Italy -- he is a member of this community -- with SCLS treated successfully with a lower dose of IVIG (1 gr/kg monthly) in the maintenance phase. He presented no acute episodes in a follow-up period of 28 months. The authors describe prophylactic treatments for SCLS in the literature and compare their patient to another 18 who received IVIG in follow-up.

Mechanistic Classification of SCLS

Mechanistic Classification of SCLS.

Abstract: The authors analyzed circulating mediators of vascular permeability and proinflammatory cytokines in acute episodic sera from 14 patients with SCLS, and sera from 37 healthy control subjects. They monitored barrier function of human microvascular endothelial cells (HMVEC) after treatment with SCLS sera using transendothelial electrical resistance assays. Consistent with their previous study, the permeability factor vascular endothelial growth factor (VEGF) was increased in sera from acutely ill subjects with SCLS. An analysis of samples from one SCLS patient who has not responded to any preventive therapies (and who is a member of this Community), suggests that SCLS may have clinically varying forms, and that within the group of patients with SCLS, different cytokines may mediate the capillary leak. Therefore, quantitative molecular and humanized cell-based assays for humoral mediators of permeability should improve diagnostic specificity for SCLS and enable clinicians to screen for effective therapies.

High-Dose IVIG Therapy for SCLS

High-Dose IVIG Therapy for SCLS.

Abstract: We evaluated IVIG prophylactic therapy in a cohort of 29 patients with Systemic Capillary Leak Syndrome in a longitudinal follow up study. All patients received treatments at the discretion of their primary providers and retrospectively via questionnaire recorded symptoms beginning with their first documented episode of the SCLS until May 31, 2014. Twenty-two out of 29 patients responded to the questionnaire, and 18 out of the 22 respondents received monthly prophylaxis with IVIG during the study period for a median interval of 32 months. The median annual attack frequency was 2.6/patient prior to IVIG therapy and 0/patient following initiation of IVIG prophylaxis (P = 0.001). 15 out of 18 subjects with a history of one or more acute SCLS episodes experienced no further symptoms while on IVIG therapy. In conclusion, IVIG prophylaxis is associated with a dramatic reduction in the occurrence of SCLS attacks in most patients, with minimal side effects.

SCLS in Children

Idiopathic Systemic Capillary Leak Syndrome in Children

Abstract: Adult subjects with systemic capillary leak syndrome (SCLS) present with acute and recurrent episodes of vascular leak manifesting as severe hypotension, hypoalbuminemia, hemoconcentration, and generalized edema. We studied clinical disease characteristics, serum cytokine profiles, and treatment modalities in a cohort of children with documented SCLS. Six children with SCLS were recruited from the United States, Australia, Canada, and Italy. Serum cytokines from SCLS subjects and a group of 10 healthy children were analyzed. Children with SCLS (aged 5-11 years old) presented with at least 1 acute, severe episode of hypotension, hypoalbuminemia, and hemoconcentration in the absence of underlying causes for these abnormalities. In contrast to what is observed in adult SCLS, identifiable infectious triggers precipitated most episodes in these children, and none of them had a monoclonal gammopathy. We found elevated levels of chemokine (C-C motif) ligand 2 (CCL2), interleukin-8, and tumor necrosis factor α in baseline SCLS sera compared with the control group. All patients are alive and well on prophylactic therapy, with 4 patients receiving intravenous or subcutaneous immunoglobulins at regular intervals. The clinical manifestations of pediatric and adult SCLS are similar, with the notable exceptions of frequent association with infections and the lack of monoclonal gammopathy. Prophylactic medication, including high dose immunoglobulins or theophylline plus verapamil, appears to be safe and efficacious therapy for SCLS in children.

Systemic capillary leak syndrome: recognition prevents morbidity and mortality

Systemic capillary leak syndrome: recognition prevents morbidity and mortality.

Abstract: The authors report on a case of SCLS in Australia involving a 61-year-old male who was properly diagnosed after his third episode, to increase awareness of the condition and to highlight the benefits of prophylactic intravenous immunoglobulin (IVIG) in this condition. The diagnosis was made by exclusion and clinically by a classic triad of hypotension, hypoalbuminaemia and haemoconcentration. There have been recent advances in understanding the pathophysiological basis for SCLS and in effective prophylaxis, and the authors and patient benefitted from said advances.

Laboratory Evidence of SCLS and of the Effectiveness of IVIG

Vascular Endothelial Hyperpermeability Induces The Clinical Symptoms of Clarkson Disease (The Systemic Capillary Leak Syndrome)

Abstract: The authors report clinical and molecular findings on 23 subjects, the largest SCLS case series to date. Application of episodic SCLS sera, but neither the purified immunoglobulin fraction nor sera obtained from subjects during remission, to human microvascular endothelial cells caused vascular endothelial cadherin (VE-cadherin) internalization, disruption of inter-endothelial junctions, actin stress fiber formation, and increased permeability in complementary functional assays without inducing endothelial apoptosis. Intravenous immunoglobulin (IVIG), one promising therapy for SCLS, mitigated the permeability effects of episodic sera directly. Consistent with the presence of endogenous, non-immunoglobulin, circulating permeability factor(s) constrained to SCLS episodes, we found that two such proteins, vascular endothelial growth factor (VEGF) and angiopoietin 2 (Ang2), were elevated in episodic SCLS sera but not in remission sera. Antibody-based inhibition of Ang2 counteracted permeability induced by episodic SCLS sera. Comparable experiments with anti-VEGF antibody (bevacizumab) yielded less interpretable results, likely due to endothelial toxicity of VEGF withdrawal. Our results support a model of SCLS pathogenesis in which non-immunoglobulin humoral factors such as VEGF and Ang2 contribute to transient endothelial contraction, suggesting a molecular mechanism for this highly lethal disorder.

Successful Treatment of SCLS with IVIG

Successful Treatment of Systemic Capillary Leak Syndrome with Intravenous Immunoglobulins.

Abstract: The authors report on a 48-year-old woman in Spain who had her 1st episode of SCLS in 1997 and was initially put on a regimen of terbutaline and aminophylline, but went on to endure 20 additional episodes in the subsequent 3 years. She was then treated with melphalan-prednisone for a year and the frequency and intensity of her episodes diminished and even disappeared. In 2005, however, the episodes returned and in 2008 she was finally put on a regimen of IVIG (2 g/kg) every 6 weeks. She has had no more episodes since then.

Comment on SCLS

Comment on The Systemic Capillary Leak Syndrome.

Abstract: The authors report on 2 additional patients from the United States with SCLS in whom prophylaxis with terbutaline and theophylline failed, but who had no further episodes after the initiation of IVIG therapy. There are additional published reports of successful prophylaxis with IVIG cited, and the authors are also aware of yet another case. Given the present state of knowledge and despite the high cost, the authors strongly believe that IVIG is the optimal prophylaxis and should be the initial choice to prevent attacks in patients with SCLS.

IVIG: A Promising Approach to SCLS

High-dose intravenous immunoglobulins: A promising therapeutic approach for idiopathic systemic capillary leak syndrome.

Abstract: The article reports the case of a 40-year-old woman with chronic SCLS treated in Berne, Switzerland, with high-dose intravenous immunoglobulins (IVIG) after a prophylactic therapy with theophylline and terbutaline (T&T) was poorly tolerated and failed to decrease the frequency and severity of the attacks. During the 5 years she was on T&T the patient suffered from about 20 similar episodes of mild to moderate shock, often requiring hospital re-admission and supportive therapy. So far, 10 months of prophylactic therapy with IVIG (2gr/kg/month) have resulted in an impressive reduction of intensity and frequency of attacks, confirming the finding of other case studies.

Lessons from 28 European Patients with SCLS

The Systemic Capillary Leak Syndrome: A Case Series of 28 Patients From a European Registry.

Abstract: The article describes the clinical characteristics, laboratory findings, treatments, and outcomes of patients with SCLS who were not previously reported in the literature. These European patients with SCLS were treated and monitored from the start of 1997 until end-July 2010. Survival rates were 89% at 1 year and 73% at 5 years; instances of death were directly related to SCLS attacks in 6 cases (75% of total). Treatments of various kinds increased the chances of survival: Five years after diagnosis, survival rates were 85% in 23 patients who had received a treatment and just 20% in 5 patients who had not. The authors provide additional evidence that a prophylactic treatment with IVIG tends to reduce the frequency and severity of attacks, and may improve the survival of patients with SCLS.

Mayo Clinic write-up on SCLS

The Mayo Clinic's summary of the diagnosis and treatment of SCLS.

During an episode of systemic capillary leak syndrome, fluids are administered intravenously to maintain the patient's blood pressure and to prevent damage to vital organs such as the kidneys, heart and brain. The amount of fluid must be carefully controlled. An attempt to normalize blood pressure through aggressive fluid administration can cause destructive swelling of the body's extremities and overload the kidneys and lungs when the body needs to eliminate the excess fluids after the episode passes.

Glucocorticoids (steroids) are often injected during an acute capillary leak syndrome attack to reduce or stop the capillary leak. This is sometimes successful. Fluid pressure in muscles may be monitored. Emergency surgery may be needed to relieve pressure and minimize damage to muscles and nerves in the arms and legs.

Once the capillary walls stop leaking and fluids start to be reabsorbed, patients are usually given diuretics to speed up elimination of the fluids before they accumulate in the lungs and other vital organs, which can be a fatal complication.

Patients who avoid organ and limb damage in a capillary leak syndrome episode tend to recover their health after several days, once the capillary walls return to normal and the accumulated fluid is expelled from the body through urination.

Although no cure has been found for systemic capillary leak syndrome, the frequency and/or severity of episodes is often reduced by having patients take certain asthma medications: theophylline and terbutaline. Patients also may benefit from intravenous treatment with immunoglobulin or by taking thalidomide.

Patients may also be prescribed corticosteroid pills such as prednisone to be taken at the first sign of symptoms of another capillary leak.

IVIG as Treatment for SCLS

Immunoglobulins for Treatment of Systemic Capillary Leak Syndrome

Abstract: A 43-year-old white woman in France diagnosed with SCLS was put on the recommended combination of Theophylline plus Terbutaline, but she nevertheless had 10 episodes of severe capillary leak during 2001-mid-2007, necessitating intensive care unit admission for her last 3 episodes. She was then put on IVIG administered every 6 weeks, and this yielded a dramatic improvement such that she has had no more episodes and has returned to her normal lifestyle.

IVIG as Treatment for SCLS

High-Dose Intravenous Immunoglobulins Dramatically Reverse Systemic Capillary Leak Syndrome.

Abstract: The objective of this study was to report the dramatic improvement of patients with systemic capillary leak syndrome obtained with high-dose intravenous immunoglobulins. Systemic capillary leak syndrome is a rare and life-threatening disorder characterized by hypotension that can lead to shock, weight gain, hypoalbuminemia, and elevated hematocrit secondary to unexplained episodic capillary fluid extravasation into the interstitial space. Because its cause is unknown, systemic capillary leak syndrome treatment has remained largely supportive. Intravenous immunoglobulins administration to a patient with refractory systemic capillary leak syndrome yielded dramatic improvement. The patient is still alive 11 yrs after systemic capillary leak syndrome diagnosis and receives intravenous immunoglobulins monthly. Later, based on that result, intravenous immunoglobulins were successfully given to two other patients during the acute phase of systemic capillary leak syndrome. Both are still alive 8 and 1.5 yrs after receiving intravenous immunoglobulins at the onset of each flare. In conclusion, intravenous immunoglobulins were effective against systemic capillary leak syndrome symptoms in three patients, but their exact mechanism remains unknown. Their immunomodulatory effect merits further investigation.

The Systemic Capillary Leak Syndrome

Narrative review: the systemic capillary leak syndrome

Abstract: The systemic capillary leak syndrome (SCLS) is a rare disease of reversible plasma extravasation and vascular collapse accompanied by hemoconcentration and hypoalbuminemia. Its cause is unknown, although it is believed to be a manifestation of transient endothelial dysfunction due to endothelial contraction, apoptosis, injury, or a combination of these. Fewer than 150 cases of SCLS have been reported, but the condition is probably underrecognized because of its nonspecific symptoms and signs and high mortality rate. Patients experience shock and massive edema, often after a nonspecific prodrome of weakness, fatigue, and myalgias, and are at risk for ischemia-induced organ failure, rhabdomyolysis and muscle compartment syndromes, and venous thromboembolism. Shock and edema reverse almost as quickly as they begin, at which time patients are at risk for death from flash pulmonary edema during rapid fluid remobilization. Diagnosis is made clinically and by exclusion of other diseases that cause similar symptoms and signs, most notably sepsis, anaphylaxis, and angioedema. Acute episodes are treated with vasopressor therapy and judicious fluid replacement, possibly with colloid solutions for their osmotic effects, to prevent the sequelae of underperfusion. Prognosis is uncertain, but patients who survive an initial severe SCLS episode are estimated to have a 10-year survival rate greater than 70%. Much remains to be learned about SCLS, and clinicians should consider the diagnosis in patients with unexplained edema, increased hematocrit, and hypotension.


Clinical Trials

Cords registry

CoRDS, or the Coordination of Rare Diseases at Sanford, is based at Sanford Research in Sioux Falls, South Dakota. It provides researchers with a centralized, international patient registry for all rare diseases. This program allows patients and researchers to connect as easily as possible to help advance treatments and cures for rare diseases. The CoRDS team works with patient advocacy groups, individuals and researchers to help in the advancement of research in over 7,000 rare diseases. The registry is free for patients to enroll and researchers to access.

Enrolling is easy.

  1. Complete the screening form.
  2. Review the informed consent.
  3. Answer the permission and data sharing questions.

After these steps, the enrollment process is complete. All other questions are voluntary. However, these questions are important to patients and their families to create awareness as well as to researchers to study rare diseases. This is why we ask our participants to update their information annually or anytime changes to their information occur.

Researchers can contact CoRDS to determine if the registry contains participants with the rare disease they are researching. If the researcher determines there is a sufficient number of participants or data on the rare disease of interest within the registry, the researcher can apply for access. Upon approval from the CoRDS Scientific Advisory Board, CoRDS staff will reach out to participants on behalf of the researcher. It is then up to the participant to determine if they would like to join the study.

Visit to enroll.

Community Leaders


I had my first episode of what turned out to be SCLS in November 2005, and was very lucky to have survived it (though with permanent disabilities in arms and legs, and thus in hands and feet) and to have been diagnosed correctly within days.

I went on to have 2 other life- and limb-threatening episodes in April 2007 and March 2009, requiring 2+ weeks of Intensive Care hospitalization to keep my organs alive and emergency fasciotomies to preserve the muscles and nerves I still have in my extremities.

I also had 7 episodes of lesser severity (Dec. 2007, June 2008, June 2009, July 2009, September 2009, and two in November 2009), because I realized I was having them early on, which allowed me to get a massive dose of steroids (Prednisone pills and/or injections of Solu-Medrol and Albumin) that effectively stopped the capillary leak phase of SCLS.

Given the increased frequency of my episodes of SCLS, despite having taken the recommended doses of the traditional medications (e.g., Theophylline, Terbutaline and Singulair), I was given my first infusion of IVIG in November 2009 and have had monthly infusions since then with no adverse side effects whatsoever. So far, so very good: for over a decade I had no more episodes of SCLS, though lately i had one in January 2020 after coming down with Influenza A days before I was due for my next IVIG infusion; another in December 2021 after coming down with Covid, also shortly before I was due for my next infusion cycle; and yet a third one in April 2023 after being infected with the Human Metapneumovirus, but this time a mere week following my infusion.

While I was among the first SCLS patients in the United States to benefit from an IVIG therapy, most other patients who had previously been getting this medication in Europe, and virtually all patients around the world who have since received IVIG, have stopped having episodes of SCLS, or only had them during the Covid-19 pandemic.

Our stories are now told in a number of case studies published in various medical journals, and there is also a scientific article showing the efficacy of IVIG in countering SCLS in laboratory conditions based on our blood samples before and after receiving IVIG, as well as several articles with the results of surveys of SCLS patients who have been on IVIG, see the Disorder Resources section of our site.  The evidence that IVIG is the best and almost always successful therapy for the prevention of episodes of SCLS is now overwhelming.

My personal email address is


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Community User List

My name is Rick and I was diagnosed with SCLS in May 2022.  A healthy male for over 59 years who has a history of very little illness throughout my entire life.  A lifelong athlete,...

I am the wife of Rick.  Rick was diagnosed with SCLS exactly one year ago in 2022.  A healthy male for over 59 years who has had little illness to contend with.  An athlete, avid...

My name is Cara. I'm 64 years old, married, have 3 adult children, and six grandchildren. I was just diagnosed with SCLS at Mayo Clinic in December 2022 where I sought a consult after my...

I have had 4 hospitalizations since October 2021. My 4th  wad end of June 2022 and was out of state in Washington. They diagnosed me with SCLS. 


Diagnosed with Systemic Capillary Leak Syndrome after several years of attacks starting around age 46. I'm currentl 52, residing in St. Louis, MO, US.

I also have Meniere's Disease, slight...

Trying to self-diagose and help my doctors figure out what has caused 10 hospitalizations in the last 5 years related to fluid retention. Possible SCLS.

The first episode occurred in April 2019. After an upper respiratory infection, after flying for four hours, the feet were swollen and low blood pressure.

 In May 2020, after a long-distance...


48 year old female, no children, healthy life and no previous health problems.    Several members of maternal family with rare degenerative and hereditary illness.


Mother to son who has capillary leak syndrome and has been successful with ivig treatmwnt for 10 yrs 

Mother to son who has capillary leak syndrome and has been successful with ivig treatmwnt for 10 yrs 

Hallo, ich bin Deutsche und 59 Jahre alt. 40 Jahre mit vielen unklaren Symptomen / Krankheiten (Monoklonale Gammopathie, Sklerose, Fibrose...), extreme Schmerzen und vieles mehr. V.a....

Diagnosed with SCLS in February 2021 after what was probably my third attack in 18 years. The trigger the third time was the Moderna COVID vaccine. I am grateful to the doctors who diagnosed me...

My daughter passed away from Clarkson's disease, or so we believe. I hope to get a diagnosis for her post-mortem and to help further understanding of this sydrome.

After 15 years of semi-diagnosed illnesses, my allergist identified I likely have a varient of Systemic Capillary Leakage Syndrome. So I am new to this diagnosis (which at least is more in the...


Mother of a daughter (16y) who might have SCLS (Netherlands)

 Diagnosed in March 2011 following 3 Clarkson attacks.
 Prise en charge par ivg et suivie par le Pr Levesques du CHU de Rouen.

Born with IgA immunodeficiency, two episodes of Idiopathic Systemic Capillary Leak Syndrome (Clarkson’s Disease). 

I was diagnosed CLS in September 2019 while I was on holidays in France. At first stage I was treated in the hospital of  Brest (region of Bretagne in France)  later on I was...

  • diagnosed at the age of 11 (2015)
  • first attack 2013
  • skeptic shock, stomach ulcer, extremely low blood pressure, nerve damage to feet, extreme needle phobia, blood clot, swollen eyes, and legs
  • many...

Ik heb mijn eerste en enigste aanval gehad in januari 2017. Ze hebben toen mijn beide benen en armen moeten openen om de druk van mijn ledematen af te halen. Door de aanval heb ik ook blijvende...

Hi, I am a 48 year old woman. I live in Brisbane, Australia. I was originally given a clinical diagnoses of ISCLS in January 2019. Since then I have been under medical investigation...

Diagnosed SCLS on February 21, 2019 at 61 years old

  • This is my husband's SCLS story:
  • Medical history: intractable migraines since 15 years old, diagnosed with fibromyalgia at 28 years old....

I was diagnosed with SCLS following a second SCLS episode, the first I was in the ICU unit and ventilated/induced coma, at that time the doctors thought it was sepsis. The first episode was in...

Systemic Capillary Leak Syndrome - what's this thing that's taken over my body??Otherwise normally superfit 52 year old. Happy to be involved in any and all research, etc. Frequently travel...

Having read what I wrote here while confined to my hospital room on day three of my current stint for very low hematocrit values (<2.5) (July 2021)
I realize how atrocious what I had...

My husband was diagnosed with SCLS in 2018 after 2 events- one in January 2018 and the first in December 2016. Both events began with flu-like symptoms and he quickly went downhill into acute heart...

Systemic Capillary Leak Syndrome Patient. Ex USAF/Airline Pilot.

I have recently(September 2018) been diagnosed with scls after a 4 week stay in hospital, most of which in intensive care. I had severe swelling around my body but mostly my legs resulting in the...

SCLS - Perth, Western Australia, 28 Male

First attack, Started around 17/11/2017, SJOG Midland Hospital

Flu like symptoms and masssive swelling in legs, guts and arms. Drove to work 12 hrs but...

This is the account for the RareShare team.

I have had SCLS for over 8 years and been doing IVIG since June of 2012 checking in first time when I first got this over 30 doctors said I would not survive I am crippled in three of my limbs...

I am a nurse who have a Clarkson syndrome evolving since several years.
At first, the symptomatology was chronic, but gradually, crisis became more and more severe (since October 2017). 


I was diagnosed with SCLS in 2018 after many hospitalizations and was started on IVIG in February 2018.

Husband to a patient that is highly suspected to have SCLS as of March 2018 - her doctors have been in contact with Dr. Druey, and he indicated it seemed like a classic presentation of...

Critical care physician

I was diagnosed Jan. 2018 .I had an acute attack and ended up in ICU . Fortunately I was diagnosed within three days . I am on no medication and am trying to get an appointment with an immunologist...

I was diagnosed with SCLS in early February of 2018. I suffered my first major leak in December of 2016. The cardiologist at Johns Hopkins at that time saved my life, but did not have a...

I was diagnosed with SCLS in Boston in early 2000 - almost 3 weeks after initially being admitted to the hospital. I felt flu-like and completely lethargic the day I was admitted, to the point...


Just diagnosed in Nov 2017 with SCLS. I am 48 from Canada.

I had my first episode in January 2017. At this time I thought I had the flu virus and didn’t think much of it. After a few days I...

I have been recently diagnosed with smoldering myeloma and edema due to capillary leakage syndrome. The build up of fluid started last spring. I have been put on oral steroids which seems to take...

Update to October 2018: I have been a little over a year with recommended dose of IVIG, I get tired more than usual, but less than a few months ago, I continued with my...

 Wife of the Arielbatt patient and Argentine physician

Started having attacks 2007. Diagnosed after near death experience 2009.

Married to Ruth with three little scoundrels,Sofia, 10,Luke, 6 and Dan, 5. 

Diagnosed in Nov '14 with a devastating attack which required extensive surgery and a 6 week stay in the...

I've been dealing with what appears to be a chronic form of capillary leak condition for several years. It started after a viral infection and became chronic over time. All of the usual causes...

Test profile

Chronic capillary leak syndrome

I have been diagnosed with this disease for the last 4 years, and although all at present is going well I would like to be able to talk to others who have this.


I live in the Uk and would be...

Italian /Spanish hotelier diagnosed with a chronic presentation of SCLS on January 31st, 2017.

Daily maintenance treatment since 1/31/17: Terbutaline 30mg, Spironolactone 200mg, Bilastine...

Dott.ssa Pollet Cristina-Internal medicine doctor-that work in an Day service Internal Medicine Ward in S. Giovannni Battista Hospital of Turin, North-west Italy

Hello my name is Andrea, I am 45 years old and from Germany. I recieved the diagnoses of Capillary leak Syndrome in march 2016.

Was diagnosed in 2010 at Mayo Clinic by Dr. Phillip Greipp. 

First attack 1998 (18 more attacks before diagnosed. First in 98, next not until 2004, increased in frequency until 2010 for total...

? Clarksons
I have been recently diagnosed with systemic capillary leak syndrome. My first "episode" put me in the ICU for 3 days. Since then I have been hospitalized twice and several smaller episodes. I have...
Developed Systemic Capillary Leak Symdrome this past Winter when I had the flu. I have been quite ill past 4 years with Mast Cell Disease. The SCLS has now shifted from a chronic form to an acute...
*33 year old, struggling with suspected SCLS since August 2015. Attacks mild to moderate rather than severe, but occur every week or so. Previously very active person with reasonably good health...
Having had cyclically hospitalising attacks over the last 5 years I have finally been diagnosed with clarksons as all other test are negative . Like all of you I'm sure have had extensive tests and...
I am here because a relative of mine was recently diagnosed with SCLS. Am locating resources for him.

test profile

Diagnosed in the year 2000 at Mayo Clinic (Minn). I live in Florida and am followed by doctors who know very little about capillary leak, I do travel to Mayo occasionally in hopes of updates with...

I am married to Cristiano, my husband was diagnosed with SCLS february 2016. We live in Denmark with our 2 children (10 and 13 years old).


• First episode:



Mother of a daughter diagnosed with FMF and SCLS

Born 1974, live in Germany near Stuttgart, married, have two young Kids, damaged legs (fcopmartment syndrome, asciotomy) and feet, fine motor skills of my hands are bad (criticall Illness...

I am a volunteer podcast organizer for RareShare.
I have just been diagnosed with SCLS. I am 23. Attending college at Florida state college at Jacksonville. Been sick for about six months, almost died a few times. Glad my hematologist figured it...
I am 42,married to Ruth and have 3 monsters living in my house called Sofia,Luke and Daniel. My wife tells me we have to care for these monsters until they become human.


Keen sports fan and...
May have had Clarkson's Disease for 2 and 1/2 years. Have almost certainly had it since October 2015. Am being treated by Dr. Druey and by the medical faculty at the University of Florida. I have...
I'm 33 years old.Im from Tehran/Iran but lately moved to Dubai/UAE


But I due to my condition I go back and forth.


3 years ago I had a rough time in my life a year full of stress,


recently diagnosed with SCLS and feeling a little lost..
65 yo male, diagnosed in Jan 15 after weekly bouts of hypotension, hemoconcentration, hypoalbuminemia,edema, severe abdominal pain. 1st episode was Oct 2014 with massive edema, cardiac arrest,...

My first attack was 3/2000. RAK amputation, nerve damage in both hands & left foot. In hospital for 4 months.


  • Second attack 4/2005. Was in hospital for a week, but thankfully no...


My name is Annmarie and I am a 57 year old female and live in Sydney, Australia.

I am suffering from a proposed mild but very chronic version of Capillary Leak Syndrome. I suffer...

Daughter has SCLS

Female Age 48 - very fit and healthy previously . Experienced first episode Sept 2014 and been having repeat attacks on average 1 per month ( but nor clearly linked to hormonal cycles) since then....

My daughter-in-law has recently been diagnosed with this disease. I want to find out as much as I can in order to understand what the disease does to her, and what I can do to help her
hard worker
My name is Marlies and Im living in Potsdam, Germany. I experienced a very critical episode of SCLS in March 2015. Although I have permanent disabilities in my lower legs I was lucky enough to...
Donnie had his first episode in Jan '08. He was in Columbus GA. He was admitted released and aemitted again over a 10 day period. He gained 30lbs and was treated for rhabdomyolysis. He had his...
My son Levi is 2 1/2 and we are pretty sure he has SCLS.
Je suis atteinte de lupus érythémateux dissiminé depuis l'âge de 11 ans. Depuis 10 ans, j'ai développé du psoriasis et le symdrome d'hyperperméabilité capillaire.
Diagnosed at 11 years old.


first attack at 8 years of age. It took us three years to get a diagnosis. Has been on IVIG since February 2015 and is doing very well, no attacks since Juli 2014
My Brother Guy Allen Overland has been diagnosed with Capillary leak syndrome since 2003


I need treatment-informations for one of my famaly-members


in france,


who has the "Systemic Capillary Leak Syndrome"


i didnt find the home community on your web-site...
Diagnostic since 16/12/2014
My wife was diagnosed with SCLS Oct. 2014. That was her third attack with severe cerebral involvement (brainstem, hippocampus, thalamus)



2009 is when she had her first episode after a...
I had a diagnosis two months ago (October 2014) for seems a mild and chronic form of SCLS. By remembering what happened since January 2014, I realized that I was probably ill as soon as February,...
Hi my name is Enny. My daughter is 5 and was loosely diagnosed with SCLS earlier this year when she was still 4. This month will mark one year since my daughter fell sick and ended up in trauma...
32 year old mother of two from Rowlett, TX. Diagnosed in September 2014, a year after onset of symptoms. Looking for solid advice and info on doctors in the Dallas area with any knowledge of this...
I'm currently casting a medical mystery docu-series for the Discovery network.
I was diagnosed with SCLS Jan. 2014. July of 2013 is when I had my first episode. I had flu like symptoms and excruciating pain in my right lower back area. I couldn't straighten out my leg cause...
Previously fit (extremely) GP. I fell ill with my first attack on the day I retired, in July 2014. I am not sure how I survived the first attack with an Hct of 219, sudden drop in renal function,...
I have recently been diagnosed with Clarksons Syndrome also known as Ideopathic Systemic Capilliary Leakage Syndrome.


I would like to join your community to find out more about it and add my...
I'm a young doctor who's studying idiopathic systemic capillary leak syndrome, or Clarkson's disease.


I work in Milan, at L.Sacco Hospital, with prof. M. Cicardi. We're conducting medical...

Hospital executive and healthcare attorney/in house counsel. Early retirement due to persistent fatigue and flares.

I was diagnosed with SCLS at Mayo Clinic Jacksonville and have been receiving...

I'm one of the social media interns for RareShare. I help raise awareness for rare diseases and rare disease support groups
My friends husband has Systemic Capillary leak Syndrome
Hi- have scleroderma, polycythemia, dermatomyositis, allergic angioedam and hashimotos thyroid. Am still working and enjoy my work. Life is hard and would like to be a member of some groups where...
I am in fourties & survived an attack of SCLS this year in Feb. I suffered compartment syndromes with its complications requiring fasciatomies. I am now going through rehab, getting monthly IVIG &...
49 Year Old Male.


Living Sydney Australia


Diagnosed with SCLS April 2014
I have Clarkson disease and struggle everyday. I have total body edema along with joint pain. Also suffer from flu like symptoms. I have been treated in Rochester Mn at the Mayo Clinic. I started...
I live near Annapolis, Maryland. I was diagnosed with SCLS in March of 2014. That was my 3rd attack in 15 months, survived the other two on my own pretty well, but didn't know what was going on....
My daughter was first diagnosed with Capillary Leak Syndrome in 2006. However, she had other symptoms that didn't fit the condition, so after nearly 2 weeks in ICU, she was discharged with primary...
I am new to the community. I just received my diagnosis a couple of weeks ago. My head is still spinning and I am trying to read everything I can get my hands on. I have been prescribed waist high...
friend of a person with scls
I am a capillary leak patient and have never had the opportunity to speak with anyone else who deals with the problem. I would like to connect with others willing to share their experiences. I must...

I am the mother of a wonderful 12 year old girl .She has systemic capillary leak syndrome. 3 severe episodes requiring hospitalization. Being treated with sub Q igg therapy. Hoping to connect with...

Our son Connor has had three acute episodes from March 2009 to Nov. 2011 between the ages of 4 and 6 1/2. He hasn't had one since.



My wife, Jen, is also a member of the site, but I...
For years I have been looking for answers to my medical issues. The closest diagnosis that my drs and I have come up with is SCLS/Clarksons. After looking into hereditary angioedema. I am still...
A caring friend of someone I've known for over 30 years. I'm trying to learn what I can to understand their situation better and hopefully help as I'm deeply shaken by this all.
My 8 year old son has just been diagnosed with Systematic Capillary Leak Syndrome. We live in Sydney Australia, I am scared to death of this disease, but it does help to read how everybody copes...
SCLS diagnosed 2008 Jul


I am a french woman who suffers capillary leak syndrome.


Doctors diagnosed two weeks ago .


I would like to discuss with you because there is no forum about this ill in...
I live in India ( Rajasthan) with my father and mother. My father is a retired officer , 64 yrs of age.He had always been healthy and with no ailments. Yet last year in April he suffered from...
To Come
my brother in law is suffering frm the ailment hence would like to join the community
Hi I am relative of Mr. Rahul Bali who is a Patient and is presenlty in ICU
I am a close Relative of Mr. Rahul Bali Who is Suffering from This rare disease

     My name is Kimberly and I was diagnosed with Idiopathic Systemic Capillary Leak Syndrome in January of 2012 by Dr. Carl Lauter at Beaumont Hospital in Royal Oak, Michigan....

Parent of a young man with Clarkson's.
My boyfriend and I have a total of three children, his daughter has just been diagnosed with SCLS. Well, maybe not diagnosed, but that is what NIH has decided she probably has after lots of testing...
I research symptoms that my husband suffers and read about possibilities that I can then take back to the doctors. Latest is systematic capillary leak syndrome. He has been told repeatedly that the...
44 y.o. single parent - developed scls 8 months post op status post mesh placement 2/2010 - systemic shock severe issues began 10/2010 - mesh removed 11/2011 - immune system damage...

Just in the centre of the Netherlands I live in Nijkerk. We have 4 boys.

Until my 50th I seemed to be healthy. I had a very busy and inspiring job as general practitioner. I loved all kind of...

My mother died in 1992 from SCLS . I am curious about new developments in treatment of this illness, and if there have been any causal factors that might have been identified.


We have a...


A first occurrence took place on 25th of October 2005 and it will supposed to be interned in the ICU (intensive care unit) of HOSPITAL UNIVERSITARIO RIO HORTEGA in Valladolid (Spain) where I...

I am 53 living in Paris , France.I discovered in May 12 I had the SCLS and my doctor is Pr Amoura at Hopital Pitié Salpétrière in Paris .


Before that my first "crisis" started in summer 2010...
I am a retired high school principal.
I am the mother of scls patient, Marilyn Meaux, or maire602
I am a christian mother of two beautiful little girls. I am very loving and have a gentle and kind heart.
Hi Everyone,


After just returning from 4 days in the hospital (my 5th episode) in So. CA while visiting my daughter & her family, I have decided it's time to get serious about finding help...
My mom suffers from SCLS and I'm working hard to help her find the best treatment possible to prevent her from having any further episodes. I appreciate this community and am excited to learn from...
My friend has been diagnosed with capillary leak.
Father of a patient.
My little brother (34 years old) has been gone through two SCLS crisis in last two years (Feb and oct 2012). He is now taking IVIG once a month and its been a while with no other hospitalization....
Diagnosed at University Hospital, London, Ontario, Canada by Immunologist (now retired) over 20 years ago, still alive, and have an episode on avg 1/yr. Interested in treatments, experiences, etc
Sister -in- law of SCLS victim who passed on Feb. 19, 2011. We would like to spread more awareness about this disease.
I am the proud mom of two beautiful children. Last year my world felt like it was crumbling around me when my 4 year old son was diagnosed with Capillary Leak Syndrome on his 2nd admission to...

51 year old, mother of four, diagnosed on Dec. 8, 2011 with SCLS. Hospitalized in ICU for 5 days, 4 of which were spent in an induced coma, intubated. Fasciotomies were done on all four extremities...

I am a 44 yr old sahm to identical twin boys. I was diagnosed with Capillary leaking syndrome 9 years ago after many unexplained "attacks" of what the doctors thought was me...

Husband & advocate of Marilyn SCLS patient 1/2008 6wks LCMH, ER, ICU, floor, physical rehab. 11/2008 mild case,12/2008 4wks ST. Lukes Episcopal Houston Texas, 1/2009 Mayou Clinic Rochester,...

50 Years old




Living near London in the UK


Married with 3 children (all boys)


I was a research Biochemist for 12 years and am now a teacher at a secondary school


My 4 year old nephew was recently diagnosed with SCLS. He has had four episodes in the past 12 months - one in January 2011, one in March 2011, one in June 2011 and one in Dec 2011. Each episode...


J'ai un problème lymphatique depuis la puberté (1950). Hyperperméabilité capillaire de 20% avec oedème généralisé. Le Pr Lagrue (Mondor-Créteil) a diagnostiqué un oedème cyclique...


Have had CLS for 4 Years first time was in I C U for 11 days my Doctors did not know what was wrong .


My blood pressure and count dropped. So they said I was in dehydration gave...

My first episode was in 2008. I was misdiagnosed with anaphylaxsis up until fall 2011. I started IVIG treatment in February 2012. Since then, I have had no episodes. I am now on bi-weekly...

My daughter Ela (3 this November 2011) was diagnosed with SCLS, September 2011, after her last serious attack.



Ela has had 4 episodes in the past year (September 2010 to date). 3...
I was told that I have chronic capillary leak but that I do not fit into the strict category of SCLS because I do not have an episode resulting in an ICU stay or proven hemoconcentration. I am...
One of my best friends is suffering with this disorder, and I wanted to find out more about it.
In early July, 2010 (the hottest weekend of the summer) I arrived at the emergency room with a low pulse, rapid heart rate and profuse sweating. When they checked my blood, they saw what they...
My name is Amy and I have been just informed I have Clarkson's Disesase. I am a mother of 3 and grandmother of 5. I have been battle with this for over 21 years and finally came across a doctor at...
*I was diagnosed on June 24, 2011 by Dr. Griepp. My story: In Feb. 2011 I was having swelling first in my hands and then spread to my feet and legs. Went to my Primary doctor. She ran some test for...

I had my first acute attack of CLS around 10 years ago and again 3 years ago. My most recent attack was around two months ago and it was very severe. This last time I was diagnosed with CLS. The...

I have been diagnosed since April 2011


I was a puzzling case 3yrs ago due to showing similar symptoms to MS all test came back negative,


I was discharged after two weeks with right...
friend of someone who died from scls
I am a family member of Mary Jane K, hoping to get more information on this disease.

I was diagnosed in 1998 with SCLS. I had been ill for 6 months, and gained 80 lbs. I was given prednisone too prevent an allergic reaction to a test. It worked wonders, and I lost the fluid. I...

i was diagnosed with scls in November 2005 or actually 3 months later in February 2006. After I had emergency open heart surgery to put a window in my heart sack at age 38. In a coma for nearly two...
I am at retirement age and have suffered from an auto-immune disease for the past 15 years.
My sister Shannon suffers from SCLS; diagnosed 5 years ago (2006).



Shannon has just been admited into Cardiac Care to monitor her current episode. We have been fortunate to have the...
I am a 61 year old female. I started swelling when I was 14 years old - just a week after my father's sudden and unexpected death. After his funeral, we went to visit family that could not attend,...

Previously healthy individual - jogger and active in excercising. First episode 9/24/10. Thought I had the flu. Extremely dizzy, nauseated. Doctor came over and couldn't find pulse. Put on 30...

wife has capillary leak syndrome

Sept 4, 2010 - Persistant Flu-like symptoms for several days led me first to my doctor's office and then to the Emergency Room ICU. I was admitted with extremely low blood pressure. I was put...

I am a retired family physician with MGUS and have had progressive symptoms of recurring edema, low blood pressure, near syncope that may be a chronic variant of SCLS.
I was diagnosed with SCLS in December of 2010 after suffering multiple episodes for over a two year period.



I was initially put on Theophylline and Prednisone with one minor recurrence...
I am the husband of someone with (?) SCLS and/or angioedema
my 4 yr old son was dagnosed with capillary leak syndrome. he has had 3 episodes in the last 6 months and thie last episode led to a cardiac arrest. he was put on life support and luckily recovered...
Physician brother of a member
I'm 19 years old, living in Oklahoma. I'm in my second year of college, and am double-majoring in Forensic Science and Funeral Service. I enjoy playing the piano , guitar, and singing; going to...
As new member but with diagnose of SCLS in April 1988 after a severe collapse and a first hospitalization in distress and 3 more other until January 1989, I think I will, probably, be at time the “...
My first attack was 3/2000. RAK amputation, nerve damage in both hands & left foot. In hospital for 4 months.


Second attack 4/2005. Was in hospital for a week, but thankfully no physical...

I have been diagnosed with systemic capillary leak syndrome which I have had the symptoms of for about 9-10 years. I am seeking information and other people who also have this as I live in New...

Diagnosed by the Mayo Clinic in Rochester , MN , with SCLS in August 2011. This was my second trip to Mayo. The first trip was in August 2010 and resulted in a 2 week stay and a suspected / working...

I have just been diagnosed with SCLS -8/18/2010 at the Mayo Clinic in Rochester, MN by Dr. P. Greipp. My first episode of this disease was June 2007. I played a round of Golf and had eaten dinner...
Wife of Mahaff

I have SCLS and think I am one of the oldest persons with this disease in this group. First attack, May 2007 after severe bronchial infection, 8 days in ICU in an induced coma; 14 days in hospital...

I was diagnosed with Systemic Capillary Leak Syndrome in May of 2010. This was after 3 months of extensive testing of every kind that did not explain the fluid retention that I had. I was first in...
My cousin has been diagnosed with this rare disease.
Atypical Systemic Capillary Leak Syndrome (current working diagnosis) Diagnosis made this year at Mayo Clinic in Minn. I am taking Theophylline and had my first IVIG a month ago. I first recognized...
I am a 56 year old female who has suffered from systemic capillary leak syndrome for 10 years. I leak almost constantly but my episodes are relatively minor with my largest 24 hour weight gain at...
Surprise! I've got a rare disease! I'm still going to be a pain in the butt, though.
Searching for answers that no doctor has been able to find in over 5 years for my wife. In the beginning she was having severe body aches, menstrual problems, severe acid reflux. After having a...
My daughter, Rebecca, was diagnosed with SCLS in 2007, when she was 2 years old. I've joined this SCLS community to learn more about this illness and its symptoms and treatments, and to share our...



My name is Wout and my mother is diagnost with the clarkson capillary leak syndrom. We just recieved this diagnose 3 days ago two weeks afther she had an attack and had to go to...
Dear sir


I have the pleaser to write about my casI`ll try to explain about may case .


All start at 17/02/2008 I had a cove and I went to the emergency they give me anti biotic it was...
My medical history briefly. It began in June 1995. After several months of hospitalization, I was diagnosed with SCLS of November 1995, immediately started plasmapheresis with a transfer of plasma...
my extremely good friend was diagnosed 6 years ago and I am agressivley seeking information to assist him. We live in Longview, Texas.
seeking helping in treatment of my 16 year old daughter newly dx of idopathic systemic capillary syndrome

My husband's first episode:

  • Husband and I were ill with upper respiratory infection (confirmed to be Human Metapneumovirus).
  • Husband had to be hospitalized Dec 2009 
  • He received a least...
I have suffered SCLS since 2007 and have had two near fatal attacks. My condition is currently being successfully controlled with Ventolin and Theophylline tablets, and I have had one attack in 18...
I am the mother of a 5 year old with systemic capillary leak syndrome. My daughter was diagnosed with this disease at the age of 17 mo. She receives infusions of IVIG, 25g every four weeks, and is...
Our son Connor (born 4/7/05) was diagnosed with this syndrome on Christmas Eve 2009. This was his second episode in 9 months. His first one (March 2009) was when he had the flu and was misdiagnosed...
I am an infusion nurse who worked very briefly with Judy Davis and I would love to read the article on your website. Thanks.



I'm Judy Davis' sister
My sister, Judy Davis, died on November 27, 2009, after a five-year battle with SCLS.





Un urologue d'un service hospitalier m'a diagnostiqué cette maladie rare il y a quelques années.Le traitement proposé à l'époque, me faisait plus souffrir que la maladie...


My father has just passed away from possible systematic capillary leak syndrome. He was not diagnosed with the condition eventhough he suffered from it more then once.


I suppose I'm on a life...
I am a gastroenterologist working at the Department of Gastroenterology of the Ospedale V. Cervello, Palermo, Italy.
My sister-in-law, Denise, has SCLS. She is married to my brother, Mike The picture is of their daughters, Kate & Brooke. My nieces! They are wonderful! Denise was diagnosed in 2009. And, with...
I've been diagnosed in 2006 with Idiopathic Capillary Leak. It is a severe case that has been constant since December,2004.I am being treat by a "Kidney-Doctor" and I'm on 20-mg of Lasix2x/day.My...

first attack in 02/2009. the doctors find the exact diagnosis after 24h and in the meanwhile, I had two fasciotomies in the legs. quick recovery and no server damage in nerves and muscles. The...

I am a 61 year old male living in Decatur Al. I had my first major attack in 3/05, with 2 more in 07, and 08, 3 in all. I was diagnosed in 4/07 at Vanderbilt in Nashville,Tn by a research doctor,...
I am the wife of a Systemic Capillary Leak Syndrome patient. I am interested in corresponding with other patients or family of patients.
Parent to a daughter with Systemic Capillary Leak Syndrome
I am french, I understand english but I don't write In french now Je suis malade SCLS depuis avril 2008 pendant 1 an j'ai eu des perfusions d'immunoglobuline et maintenant tous les 2 mois 1g/kg...
My name is Maria, I was diagnosed with SCLS in Feb 2011. I have the chronic form of SCLS with attacks every few days. I had my 1st major attack in January of 2004 at the age of 33, but I started...
Update 2016:



I have been off IVIG since February. For now I am on Singulair and an ACE inhibitor. I have been having minor attacks but have been able to stay out of the hospital.


I am a stay- at- home mom of 7 children, (5 sons and 2 daughters).


And yes, they are all ours,


no, we have no twins, and


no, we are not Catholic.


These are always the first...

[Updated on January 2013]


My daughter is 7 years old and has been diagnosed SCLS in May 09. She had 4 SCLS attacks, the first one in February 08, the last one in April 09 (she was 3-4 yrs...

My daughter, age 41, has been battling illness for almost 2 years now. It appears that she has systemic capillary leak syndrome, a very rare condition. We are very anxious to learn all we can about...

I noticed swelling in my ankles in spring of 2007, which increased through that summer. I was working full time at a desk job, then on evenings & weekends at our home business helping with...

family physician , patient with scls
My first attact was in Oct 2005. I was disgnosed in June 2006 with Capillary Leak Syndrome. The first time I entered Mass General in Boston Mass the Dr's thought I had a virus due to the fact that...
I was just diagnosed with scls and am looking for any information on it, since my doctor was unable to give me much of anything yesterday. So I am taking it upon myself to do some of the research...
sono la moglie di mario gatto se qualcuno in italia vuole contattarmi per avere informazioni sulla malattia puo' farlo su facebook mi chiamo marcella iannacchero
I live in Christchurch, New Zealand, and if I could find some way of connecting with some supporting people I would be very grateful.



I have been living with SCLS since October 2005. I...

Name: Walt Breidigan, Bethel Park, Pa. Born 1957



I have had CLS since February, 2005.



The first incident gave me two total drop feet and no feeling from calves to the...

Heading a research study on Systemic Capillary Leak Syndrome at the National Institutes of Health.

I have been on IVIG therapy for 5 years without any SCLS episodes.

I have had 7 recurring episode of Severe Capillary Leak Syndrome in the past 20 years. My last episode was in January 2013. Each...

Widow of NC SCLS patient
I have had SCLS since 1997, It took 6 years to get it diagnosed. Aftyer it was diagnosed I went into remission for 5 years. After coming down with a systemic viral infection in the fall of 2008 my...
my brother at age 43 suffered a capillary leak attack and was diagnosed 6 months later in 2004 at the mayo clinic in rochester by dr greipp and his associates. i was with him both times. he is now...
White male diagnosed with Capillary Leak Syndrome at the Mayo Clinic in Rochester MN after a severe illness in Nov. 2003.
Im from Guatemala. The MD told me that my mother have capillary leak syndrome, but here is not a specialist. I need help. I prefer if can write me in spanish. Thank you.
My name is Claude Pfefferlé. I live in the french speaking part of Switzerland.


First acute episode of systemic capillary leak syndrome on May 2003. Failure of different treatments and 5 new...
j'ai été diagnostiqué avec le Syndrome de fuite capillaire depuis Mars 2006. j'ai pris des médicaments durant deux ans sans aucune rechute. En Janvier 2008, ça recommence... des hospitalisations...
I am from Canada, My friend, 38 years old, mother of two beautiful childrens has this desease since 2006, and presently her situation is not controled. She is desperate to find a way to controle...
Am an Indian national, want to join this community on clarkson's syndrome to know more about it, its treatment, cures if any and what prophylactic measures can taken.
Physician focused on disorders of blood pressure control and sodium metabolism. Some experience with Idiopathic Systemic Capillary Leak Syndrome. Based at Weill Cornell and The New York Hospital...
First scls attack on valentines day 2005. Many minor attacks and hospitalizations untill beggining IVIG therapy March 2010 I believe. Life changing cessation of symptoms until October leading to a...

My husband Jeff was first diagnosed with SCLS when he was hospitalized in February 2005. We're in Washington, DC. He's been hospitalized numerous times since then.

Friends, family and patients with SCLS



I am a physician at the Mayo Clinic in Rochester MN. I have been interested in helping patients with SCLS for many years. I am happy to support...
Mark is my name, I am the partner of my lovely girlfriend Cara, who has recently been diagnosed with SCLS.



She has had a difficult time recently, with admissions to ICU and the upset...
I am 36 years old and was diagnosed with SCLS in January of 2007. The first episode I had of this was quite severe and landed me in the ICU on a ventilator and in a medically induced coma. I was 11...
I have had this syndrome since June 2007. I was diagnosised in Dec. 2007. I was having episodes about every 5 to 6 days. I had a severe episode in November of 2008. After a bad episode I would...
I am married to Richard and we have 2 wonderful sons 17 and 20 years old. I have been a Hopkins pediatric infusion nurse for almost 30 years. I enjoy church, reading, cooking and my family. I...

I had my first episode of what turned out to be SCLS in November 2005, and was very lucky to have survived it (though with permanent disabilities in arms and legs, and thus in hands and feet) and...

My name is David Isserman and I am one of the co-founders of RareShare. If you have any questions or feedback regarding RareShare, please feel free to contact me directly at

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Discussion Forum

Looking for More SCLS Volunteers

Created by aporzeca | Last updated 19 Jan 2010, 08:09 PM

new pedi case

Created by jessclark | Last updated 12 Jan 2010, 11:16 AM

Flu and H1N1 shots

Created by clswalt | Last updated 29 Dec 2009, 08:12 PM

In Memoriam: Judy Davis (1958-2009)

Created by aporzeca | Last updated 7 Dec 2009, 03:49 PM


Created by nwbsaw | Last updated 30 Nov 2009, 03:14 AM

How to Know For Sure When You Are Having An Episode

Created by aporzeca | Last updated 26 Nov 2009, 02:08 AM

Going to NIH

Created by dannycfi | Last updated 20 Nov 2009, 09:51 PM


Created by photoqueen8 | Last updated 19 Nov 2009, 07:58 PM

Message pour sosotout

Created by josee | Last updated 19 Oct 2009, 01:16 AM

Aged Beef Enzymes - a trigger?

Created by greipp | Last updated 13 Oct 2009, 06:18 PM


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