WIT Press


Indexes Derived From Non-linear ESPVR For Evaluation Of Ventricular Performance

Price

Free (open access)

Paper DOI

10.2495/BIO130121

Volume

17

Pages

11

Page Range

133 - 143

Published

2013

Size

185 kb

Author(s)

R. M. Shoucri

Abstract

Indexes derived from the non-linear end-systolic pressure-volume relation (ESPVR) are introduced in a way to study the performance of the left ventricle of the heart. The study sheds some light on the problem of heart failure with normal or preserved ejection fraction (HFpEF). It is shown that the ejection fraction (EF) is one index of several indexes that can be derived from the ESPVR in order to assess the performance of the left ventricle. Pressures acting on the left ventricle (ordinates of the ESPVR) as well as areas under the ESPVR (units of energy) can be used in assessing the performance of the left ventricle. Keywords: cardiac mechanics, mathematical physiology, pressure-volume relation in the ventricles, peak isovolumic pressure, active force of the myocardium, ventricular elastance, heart failure with preserved ejection fraction.

Keywords

Keywords: cardiac mechanics, mathematical physiology, pressure-volume relation in the ventricles, peak isovolumic pressure, active force of the myocardium, ventricular elastance, heart failure with preserved ejection fraction.