Systemic capillary leak syndrome complicated by lower extremity compartment syndrome: a case report.

Background: Systemic capillary leak syndrome (SCLS) is a rare disorder characterized by hypotension, hypoalbuminemia, and hemoconcentration, typically caused by increased vascular permeability due to endothelial dysfunction. We report a case of SCLS complicated by bilateral lower extremity compartment syndrome.

Case presentation: A 29-year-old man developed fever, cough, and rhinorrhea. He was restless, hypotensive, and had generalized edema with tense extremities. Laboratory findings included a hemoglobin level of 24.9 g/dL, hematocrit of 69.3%, albumin of 1.8 g/dL, and creatinine of 3.27 mg/dL. SCLS-induced shock was diagnosed with detection of monoclonal gammopathy of the IgG-λ type. Treatment consisted of fluid resuscitation, vasopressors, high-dose corticosteroids, and intravenous immunoglobulin. Although hemodynamic status improved, he developed bilateral lower-limb compartment syndrome, necessitating fasciotomy. Although the patient exhibited sensory deficits and impaired dorsiflexion and plantarflexion in both ankles, he was able to ambulate with a cane and was discharged on hospital day 50.

Conclusion: This case highlights the risk of serious complications such as compartment syndrome in patients with SCLS.