Evaluation of left atrial function serial change after circumferential pulmonary vein ablation for paroxysmal atrial fibrillation by tissue Doppler echocardiography
- VernacularTitle:组织多普勒评价阵发性心房颤动患者环肺静脉左心房线性消融术后左心房功能变化
- Author:
Hongzuen FEI
;
Yale HE
;
Hongtao LIAO
;
Yueshuang HOU
;
Shulin WU
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Atrial fibrillation;
Catheter ablation;
Atrial function,left
- From:Chinese Journal of Ultrasonography
2008;17(4):284-287
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate left atrial function serial change after circumferential pulmonary vein ablation(CPVA)for paroxysmal atrial fibrillation using tissue Doppler echocardiography.Methods One hundred and eight patients with paroxysmal atrial fibrillation underwent CPVA guided by CARTO.Tissue Doppler imaging and conventional echocardiography were underwent 48 h before CPVA,48 h,1 month,3 month and 6 month after CPVA.Results One hundred and six patients with paroxysmal atrial fibrillation finished CPVA successfully.Compared tO 48 h pre-CPVA,left atrial diameter and volume decreased 48 h,1 month,3 month,6 month after CPVA,significant change were found at 3 month,6 month after CPVA(P＜0.05).Left ventricular end-diastolic diameter(LVEDD),left ventricular end-systolic diameter(LVESD).left ventricular ejection fraction(LVEF),mitral flow E revealed no significant change(P＞0.05).Mitral flow A decreased significantly 48 h after CPVA(P＜0.05),restored significantly after 3 month.Tissue Doppler parameter S'and E'revealed no significant change(P＞0.05)through the period,A'decreased significantly 48 h after CPVA(P＜0.05),restored significantlv after 1 month.Conclusions Left atrial diameter and volume decreased after CPVA.Left atrial active contraction function decreased shortly after CPVA(LA stunning),and restored progressively.
