ESPVR and Heart Failure

摘要：

　　End-systolic pressure-volume relation (ESPVR) in the left ventricle is used to study the problem of heart failure with normal or preserved ejection fraction (HFpEF).This problem has recently been the object of several studies; most of these studies have concentrated on the variation of the dimensions of the left ventricle during the systolic phase.In this communication,we introduce mathematical relations that show the importance of the forces acting on the myocardium and the energy involved in the systolic contraction on the calculation of the ejection fraction (EF).Both can be derived in a simple way from the study of the pressure-volume relation (PVR) and the areas under the ESPVR.Alternative ways to assess the performance of the left ventricle are suggested.

关键词： active force of the myocardium peak isovolumic pressure HFpEF pressure-volume relation left ventricle PVR ESPVR

作者: R. M. Shoucri R. Kohar

作者单位: Royal Military College of Canada/Department of Mathematics, Kingston, Ontario, Canada, K7K 7B4

会议类型: 国际会议

会议名称: World Congress on Medical Physics and Biomedical Engineering (2012年医学物理及生物医学工程国际会议(IFMBE))

会议地点: 北京

会议语种:英文

页码: 180-183

在线出版日期: 2012-05-26（万方平台首次上网日期，不代表论文的发表时间）