Successful thrombolytic therapy in two patients with renal vein thrombosis.

Thrombolytic therapy was administered to two patients with angiographically documented renal vein thrombosis. One patient with bilateral thrombotic disease complicating membranous glomerulonephritis was treated with systemic streptokinase; the second patient had unilateral renal vein thrombosis associated with chronic pyelonephritis and was treated with streptokinase and urokinase administered directly into the involved vessel. Lysis of all thrombus material was demonstrated by follow-up renal venography and was associated with a gratifying improvement of clinical well-being and laboratory function. These cases demonstrate the feasibility of dissolving renal vein thrombi of presumed recent onset and suggest that rapid lysis of the thrombus accelerates functional and clinical recovery.