Author(s)

C. Chung, S.W. Lee, D.C. Han & E.G. Min

Abstract

We investigated the energistics of the physiological heart model by comparing predictive indexes of the myocardial oxygen consumption (MOO), such as tension-time index (TTI), tension-time or force-time integral (FTI), rate-pressure product (RPP), pressure-work index, and systolic pressure-volume area (PVA) when using electrohydraulic left ventricular device (LVAD) or not. We developed the model of this VAD incorporated the closed-loop cardiovascular system with a baroreceptor which can control heart rate and time-varying elastance of left and right ventricles On considering the benefit of the LVAD, the effects of various operation modes, especially timing of assistance, were evaluated using this coupled computer model. Overall results o

Keywords