HeartMate II ventricular assist device thrombosis-an echocardiographic approach to diagnosis: can Doppler evaluation of flow be useful?

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
Lech PaluszkiewiczGero Tenderich

Abstract

A 68-year-old man was admitted to the hospital 4 months after HeartMate II ventricular assist device implantation, because his clinical status had deteriorated and his levels of lactate dehydrogenase and free hemoglobin had increased. Transthoracic echocardiography performed at admission revealed decreased basic diastolic continuous flow velocity with a pulsatile increase in flow velocity during ventricular contraction in both inflow and outflow cannulas. Twelve hours after beginning lytic therapy, basal diastolic continuous flow velocity had increased, and the amplitude between diastolic and systolic flow velocity had decreased. The clinical status of the patient improved, and his lactate dehydrogenase decreased. A decrease in basal diastolic flow may be a valuable marker of flow disturbance in continuous flow ventricular assist devices.

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Citations

Jan 15, 2013·Current Heart Failure Reports·Aleksandar AdzicSimon Maybaum
Mar 8, 2012·Heart Failure Reviews·Carmelo A Milano, Alan A Simeone
Nov 26, 2010·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Robert M WeissFrances L Johnson
Nov 26, 2013·Journal of Cardiac Surgery·Carlo R BartoliJohn A Kern
Mar 25, 2014·The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation·Jerry D EstepMatthias Loebe
Jan 16, 2016·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Cenk OezpekerMichiel Morshuis

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