Use Of Tissue Plasminogen Activator Alteplase Purge Solution In An Impella 5.5 Heart Pump
ASAIO JOURNAL(2021)
摘要
Standardized Impella purge solutions have traditionally consisted of 5-40% dextrose with or without unfractionated heparin as a means of anticoagulation. Such a solution serves to create a pressure barrier preventing entry of blood into the pump's motor housing with heparin providing adequate purge pathway patency in the event of this occurring. We present a case of tissue plasminogen activator (tPA, Activase) utilization in lieu of the recommended purge solution due to concern for thrombus formation of the purge pathway in a 51-year-old male with cardiogenic shock status-post Impella 5.5 heart pump placement for hemodynamic support while awaiting heart transplantation. The purge solution was successfully administered for 48 hours without complication and a reduction in average purge pressure with increase in purge flow rate was observed.
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关键词
impella, ventricular assist device, anticoagulation, alteplase, thrombosis
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