Evaluation of left ventricle systolic function and postsystolic shortening in essential hypertension with different patterns of ventricular geometric models by strain and strain rate imaging
- VernacularTitle:应变及应变率显像评价不同构型高血压患者左心室局部收缩功能及收缩后缩短
- Author:
Chao LIU
;
Ming CHEN
;
Xiang ZHANG
;
Wen LI
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Hypertension;
Ventricular function,left;
Strain
- From:
Chinese Journal of Ultrasonography
2008;17(10):843-846
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate regional systolic function in left ventricle(LV) and postsystolic shortening(PSS) in patients with essential hypertension with different remodeling patterns of LV by strain and strain rate imaging. Methods According to the level of LV mass index and relative wall thickness, forty patients with hypertension were divided into LV normal geometry(LVN) group and LV remodeling(LVR) group, with thirty healthy subjects as control. The strain and strain rate were compared among the basal,middle and apex segments. Results Compared with control, systolic peak strain and strain rate in both groups of LVN and LVR were decreased significantly(P<0.05). Prevalence of PSS in LVR group (55%) was higher than that in LVN group(39%) and control(22%) with significant differences(P<0.01).Conclusions High prevalence of pathologic PSS in patients with hypertension could implied that unbalance of segmental motion in regional myocardial ischemia. However,presence of PSS in healthy subjects might be the result of synchronization and balance of normal myocardium under physical condition.
