title: Resolution of hemolysis from pump thrombus during left ventricular assist device exchange.
abstract: A 50-year-old male who underwent a HeartMate II left 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 HeartMate II, and the color of the urine changed dramatically from cola-colored to yellow which enabled us to confirm the diagnosis.
authors.affiliation: Division of Cardiothoracic Surgery, Department of Surgery, Thomas Jefferson University, Philadelphia, PA 19107, United States.
authors.forename: Shinya
authors.initials: S
authors.lastname: Unai
authors.affiliation: S Division of Cardiothoracic Surgery, Department of Surgery, Thomas Jefferson University, Philadelphia, PA 19107, United States.
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Hirose
authors.affiliation: Division of Cardiothoracic Surgery, Department of Surgery, Thomas Jefferson University, Philadelphia, PA 19107, United States.
authors.forename: John W
authors.initials: JW
authors.lastname: Entwistle
authors.affiliation: Division of Cardiothoracic Surgery, Department of Surgery, Thomas Jefferson University, Philadelphia, PA 19107, United States.
authors.forename: Louis E
authors.initials: LE
authors.lastname: Samuels
keywords: Cardiac surgery; Hemolysis; Left ventricular assist device; Thrombosis