Discussion:
Durable mechanical circulatory support devices, such as LVADs, have improved heart failure outcomes when used as destination therapy compared to medical treatment alone 1. Pump thrombosis is a complication of LVAD implantation, affecting approximately 5% of the patients 2. Flow obstruction of the HVAD can be classified into pre-pump obstruction, in-pump obstruction, and post-pump blood flow obstruction (Figure 1).