Determinants of postoperative left atrial structural reverse remodeling in patients undergoing combined catheter ablation of atrial fibrillation and left atrial appendage closure procedure

Introduction Catheter ablation of atrial fibrillation (AFCA) and left atrial appendage closure (LAAC) exert opposite effects on left atrial (LA) size. We aim to observe the net impact of combined AFCA and LAAC strategy on LA size and explore those factors which might affect the postprocedure LA stru...

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Bibliographic Details
Published in:Journal of cardiovascular electrophysiology 2019-10, Vol.30 (10), p.1868-1876
Main Authors: Li, Yi‐Gang, Gong, Chang‐Qi, Zhao, Ming‐Zhe, Sun, Jian, Wang, Qun‐Shan, Zhang, Peng‐Pai, Feng, Xiang‐Fei, Yu, Yi, Yu, Yi‐Chi, Liang, Bing‐Er
Format: Article
Language:English
Subjects:
Ablation
atrial fibrillation
Cardiac arrhythmia
catheter ablation
Catheters
Computed tomography
Fibrillation
Heart
left atrial appendage
Medical instruments
one‐stop treatment
Radiofrequency ablation
structural reverse remodeling
Ventricle
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Summary:Introduction Catheter ablation of atrial fibrillation (AFCA) and left atrial appendage closure (LAAC) exert opposite effects on left atrial (LA) size. We aim to observe the net impact of combined AFCA and LAAC strategy on LA size and explore those factors which might affect the postprocedure LA structural remodeling. Methods A total of 53 patients, who underwent combined AFCA and Watchman LAAC in our center from March to December 2017, were enrolled. Atrial fibrillation (AF) recurrence was monitored after the procedure. Left atrial volume (LAV) and left atrial appendage volume (LAAV) were measured by Mimics based on dual‐source computed tomography images. Results At 6 months, sinus rhythm (SR) was maintained in 79.2% patients. LAV was significantly reduced (130.2 ± 36.3 mL to 107.1 ± 30.0 ml; P 
ISSN:1045-3873
1540-8167
DOI:10.1111/jce.14094