Assessment of left atrial appendage stunning by real-time three-dimensional transesophageal echocardiography after ablation of atrial fibrillation
10.3760/cma.j.issn.1004-4477.2012.04.004
- VernacularTitle:实时三维经食管超声心动图检测心房颤动患者导管消融术后左心耳顿抑的临床研究
- Author:
Dajun QIAN
;
Jun TAN
;
Min DAI
;
Kunlin LI
;
Ruxing WANG
- Publication Type:Journal Article
- Keywords:
Echocardiography,real-time three-dimension;
Echocardiography,transesophageal;
Atrial appendage;
Atrial fibrillation;
Catheter ablation
- From:
Chinese Journal of Ultrasonography
2012;21(4):288-291
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the role of real-time three-dimensional transesophageal echocardiography(RT3D-TEE) in non-valvular atrial fibrillation with left atrial appendage(LAA) stunning after catheter ablation.Methods Clinical and echocardiographic variables were analyzed by univariate regression in order to investigate the relationship between the group of LAA stunning and others in 28 patients after catheter ablation.Results Univariate analysis revealed difference in persisting time of atrial fibrillation[(16.4 ± 11.6)weeks vs (21.3 ± 18.6) weeks,P ＜0.05],left atrial diameter[(43.4 ± 8.3) mm vs (47.6 ± 5.9) mm,P ＜0.05 ],left atrial emptying fraction (0.38 ± 0.04 vs 0.30 ± 0.09,P ＜0.05).LAA emptying fraction based on three-dimensional volume measurements had significant difference (0.20 ± 0.03 vs 0.12 ± 0.02,P ＜ 0.001) between the group of LAA stunning and other cases.Conclusions LAA ejection fraction calculation by RT3D-TEE is feasible and more accurate than by clinical and other echocardiographic in LAA stunning after ablaton of atrial fibrillation.
