Fibrinolytic activation during long-term support with the HeartMate II left ventricular assist device.

Human physiologic responses to pulsatile left ventricular assist devices (LVADs) are well understood; responses to the newer continuous flow pumps are not. Therefore, we evaluated the long-term effects of continuous flow LVAD support on fibrinolytic activation. Twelve recipients of an axial flow LVAD as destination therapy were assessed for fibrinolytic activation at 1, 3, 6, 9, and 12 months postimplantation.