Impact of transcatheter aortic valve replacement on left atrial strain by two-dimensional speckle-tracking imaging
10.3760/cma.j.cn131148-20201228-00980
- VernacularTitle:二维斑点追踪评估经导管主动脉瓣置换术对左心房应变的影响
- Author:
Yufei CHENG
1
;
Cuizhen PAN
;
Yanan WANG
;
Haiyan CHEN
;
Xianhong SHU
Author Information
1. 复旦大学附属中山医院心脏超声诊断科 上海市心血管病研究所 上海市影像医学研究所 200032
- Keywords:
Two-dimensional speckle tracking imaging;
Atrial function, left;
Left atrial strain;
Transcatheter aortic valve replacement
- From:
Chinese Journal of Ultrasonography
2021;30(6):477-482
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the influence of transcatheter aortic valve replacement (TAVR) on left atrial strain by two-dimensional speckle tracking echocardiography.Methods:Thirty-five patients, who were admitted for TAVR in Zhongshan Hospital of Fudan University from September 2015 to July 2018, were recruited. Echocardiography was performed 1 day before and 12 months after TAVR. Traditional ultrasound results, including aortic valve area (AVA), left ventricular end-diastolic volume (LVEDV), left ventricular end-systolic volume (LVESV), left ventricular ejection fraction (LVEF), left atrial volume index (LAVI), peak velocity of tricuspid regurgitation (Vtr), peak velocity of the lateral wall of mitral annulus in early diastolic period (e′) and the ratios of peak mitral orifice velocity in early diastolic period to e′ (E/e′), were recorded. Two-dimensional speckle tracking imaging derived left atrial strain, which included reservoir (LASr), conduction (LAScd) and contraction (LASct), were recorded as well. The differences between pre-operation and post-operation were analyzed.Results:Compared to pre-operation, aortic valve area was increased ( P<0.001). Left ventricular systolic function was improved significantly (LVEDV and LVESV were decreased, LVEF was increased, all P<0.001). As to the left ventricular diastolic function, although LAVI and Vtr were decreased (both P<0.05), e′ and E/e′ were hardly changed (both P>0.05). Meanwhile, left atrial strain, including LASr, LAScd and LASct, were improved significantly 1 year post-TAVR (all P<0.01). Conclusions:Left atrial strain is able to evaluate the left atrial function of reservoir, conduction and contraction.Left atrial strain can be a promising tool of assessing left atrial function in patients underwent TAVR.
