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. Author manuscript; available in PMC: 2024 Apr 1.
Published in final edited form as: J Heart Lung Transplant. 2023 Nov 28;43(4):594–603. doi: 10.1016/j.healun.2023.11.015

Figure 4.

Figure 4

RV contractility, afterload, and coupling as a function of left ventricular assist device (LVAD) speed. In LVAD patients with poor right ventricle-pulmonary arterial coupling, further increases in speed did reduce afterload but also reduced intrinsic RV contractility (Ees) more significantly than in patients with preserved coupling. As a result, poorly coupled patients saw a further decline in right ventricle-pulmonary arterial coupling at higher LVAD speeds (interaction p = 0.02). Ea, effective arterial elastance; Ees, end-systolic elastance; RV, right ventricle.