Evaluation of subclinical left ventricular systolic dysfunction in patients with severe aortic stenosis by three dimensional speckle tracking echocardiography
10.3760/cma.j.issn.1008-1372.2016.05.013
- VernacularTitle:三维斑点追踪技术对主动脉瓣狭窄患者亚临床左心室收缩功能受损的评价
- Author:
Xiaoni YAN
;
Ying CHEN
;
Yuejun WANG
;
Lifei ZHU
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Aortic valve stenosis/CO/US;
Ventricular dysfunction,left/CO/US
- From:
Journal of Chinese Physician
2016;18(5):692-694
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the role of three dimensional (3D) speckle tracking echocardiography (STE) in detection of subclinical left ventricular (LV) systolic dysfunction in patients with aortic stenosis (AS).Methods The study included 47 patients with AS and 50 age-matched healthy individuals.Conventional echocardiographic parameters were measures,and 3D Speckle tracking imaging of the peak systolic strain was recorded.Results Three-dimensional global longitudinal strain (3D-GLS) were significantly reduced in patients with AS compared to controls (P ＜ 0.01).Three-dimensional global circumferential strain (3D-GCS) were significantly increased (P ＜ 0.05).Three-dimensional global area strain (3D-GAS) and three-dimensional global radial strain (3D-GRS) were similar between two groups (P ＞0.05).Correlation analysis showed that |3D-GLS| was negatively correlated with left ventricular mass index (LVMI) (r =-0.59,P ＜0.05) irrespective of |3D-GAS|,|3D-GCS|,3D-GRS,and left ventricular ejection fraction (LVEF).Conclusions Patients with AS have evidence of subclinical LV systolic dysfunction despite preserved EF％.3D speckle tracking appears is useful in detection of subclinical LV dysfunction in patients with AS.
