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The solid line represents pressure-volume (PV) loop with no LVAD support (Control). Partial LVAD support (p-LVAD) decreases left ventricle (LV) end-diastolic volume and increases mean arterial pressure (AP), thus PVA does not decrease much (dotted line). On the other hand, total LVAD support (t-LVAD) lowers LV pressure to below AP and markedly reduces PVA (double line).
