Resolution of hemolysis from pump thrombus during left ventricular assist device exchange

摘要

A 50-year-old male who underwent a HeartMateⅡleft ventricular assist device placement for ischemic cardiomyopathy presented with discolored urine and hemolysis 3 mo after the operation.His hemolysis was thought to be due to thrombosis within the pump.Imaging studies were not able to visualize a left ventricular thrombus.Medical management with anticoagulation failed and he underwent surgery for a pump exchange.Intraoperatively,a firm thrombus was found within the pump of the HeartMateⅡ,and the color of the urine changed dramatically from cola-colored to yellow which enabled us to confirm the diagnosis.