Disease pathophysiology: Systemic capillary leak syndrome is a rare disorder characterized by self-reversing episodes during which the endothelial cells which line the capillaries are thought to separate for a few days, allowing for massive leakage of plasma and other blood components from the blood vessels into neighbouring body cavities and muscles. Systemic capillary leak syndrome usually consists of two phases i.e capillary leak phase and recruitment phase. This leads to swelling. Systemic capillary leak syndrome leads to hypotension, hemoconcentration, and hypoalbuminemia. It is a life threatning syndrome often misdiagnosed with polycythemia, polycythemia vera, or sepsis.
Treatment: Mainly the intravenous administration of saline solution plus hetastarch or albumin and colloids (to increase the remaining blood flow to vital organs like the kidneys), as well as glucocorticoids (steroids like methylprednisolone, to reduce or stop the capillary leak). However, it is important to avoid overly aggressive intravenous fluid administration during this leak phase, because it may cause massive swelling of the extremities and thus serious collateral damage because of induced compartment syndromes.
The patient was diagnosed with SCLCS and treated with therbutaline and aminophylline. Research: Major research is been performed by NORD (National Organization of Rare Disorders) Statistics: 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-κ 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%).