Evaluation of left atrial systolic function with strain rate imaging in patients with coronary heart disease after coronary artery bypass grafting
10.3321/j.issn:1003-3289.2009.10.016
- VernacularTitle:应变率评价冠心病患者冠脉搭桥术后左心房收缩功能
- Author:
Tian WU
;
Ruiqiang GUO
;
Jinling CHEN
;
Qing ZHOU
;
Honggang CHU
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Strain rate imaging;
Coronary artery bypass grafting;
Left atrial;
Systolic function
- From:
Chinese Journal of Medical Imaging Technology
2009;25(10):1789-1792
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the changes of left atrial systolic function in patients with coronary heart disease after coronary artery bypass grafting (CABG). Methods Strain rate imaging (SRI) was performed on 23 patients with coronary heart disease before CABG, 1 week, 1 and 3 months after CABG to evaluate left atrial systolic function quantitatively. Results No significant change of left atrial systolic function was detected 1 week after CABG (P＞0.05 ). E/A and LVEF increased, LAFS, AEF and SRa decreased 1 month after CABG compared with those before CABG (P＜0.05). Three months after CABG, changes turned more significantly (P＜0.01). Left ventricular ejection fraction (LVEF) increased 1 and 3 months after CABG, and its changing rate negatively correlated with those of Sra (r=-0.751,-0.783; all P＜0.01). Conclusion Left atrial systolic function is affected by CABG, presenting as decrease of pump function. SRI can be used to evaluate the atrial systolic function quantitatively and monitor the changing of left atrial systolic function dynamically after CABG.
