Relation between circumferential wall stress and midwall shortening for assessing myocardial contractility in essential hypertention of different remoldings
- VernacularTitle:室壁径向应力-中层径向缩短关系对高血压不同左心室构型心肌收缩力的研究
- Author:
Hongying ZHAO
;
Xuefeng GUANG
;
Tianshu CHU
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Hypertension;
Ventricular function,left;
Myocardial contraction
- From:Chinese Journal of Ultrasonography
2003;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess myocardial contractility in essential hypertention(EH) of different remoldings by means of circumferential midwall fractional shortening (mFs), relation between mFs and circumferential end-systolic stress(mFs-cEss). Methods The eject fraction(EF), circumferential end-systolic stress(cEss), fractional shortening(Fs), mFs was calculated in 115 EH patients and 29 normal controls. Relations in mFs-cEss, Fs-cEss between the subjects were analysed with linear correlation and linear regression. Results In using EF,Fs,Fs-cEss to assess chamber function of the patients with hypertension of four left ventricular remoldings, it shows apart from eccentric hypertrophy, the rest three remoldings were overestimative. MFs assessing myocardial contractility in four remoldings was lower than that of the controls, especially obvious in concentric hypertrophy patients(P
