Abstract
Mechanical unloading with left ventricular assist device (LVAD) support can lead to clinically meaningful reversal of stress-related compensatory mechanisms. However, true assessment of left ventricular ejection fraction (LVEF) is not possible, whereas the left ventricle is unloaded by LVAD therapy making identification of patients with myocardial recovery even more challenging. We introduce our new protocol, the "reverse ramp test" for HeartWare HVAD, HeartMate II, and HeartMate 3. The reverse ramp is transthoracic echo (TTE) and right heart catheterization (RHC)-based protocol with LVAD turn down steps to minimal support allowing for a more accurate assessment of myocardial function.
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