One-stop strategy for treatment of atrial fibrillation: feasibility and safety of combining catheter ablation and left atrial appendage closure in a single procedure

• Published in: Chinese medical journal Vol. 133; no. 12; pp. 1422 - 1428
• Main Authors: Chen, Mu, Wang, Zhi-Quan, Wang, Qun-Shan, Sun, Jian, Zhang, Peng-Pai, Feng, Xiang-Fei, Li, Wei, Yu, Ying, Liu, Bo, Mo, Bin-Feng, Zhang, Rui, Yang, Mei, Gong, Chang-Qi, Zhao, Ming-Zhe, Yu, Yi-Chi, Zhao, Yan, Lu, Qiu-Fen, Li, Yi-Gang
• Format: Journal Article
• Language: English
• Published: China The Chinese Medical Association, produced by Wolters Kluwer, Inc. under the CC-BY-NC-ND license 20.06.2020; Lippincott Williams & Wilkins Ovid Technologies; Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China; Wolters Kluwer Health; Wolters Kluwer
• Subjects: Ablation; Atrial Appendage - surgery; Atrial Fibrillation - surgery; Blood clots; Cardiac arrhythmia; Catheter Ablation; Catheters; Contraindications; Demographics; Electrocardiography; Embolisms; Feasibility Studies; Humans; Magnetic resonance imaging; Male; Medical imaging; Original; Patients; Sinuses; Stroke; Treatment Outcome; Veins & arteries; United States > US; China; One-stop procedure; Stroke; Atrial fibrillation; Left atrial appendage closure; Catheter ablation; WATCHMAN
• ISSN: 0366-6999; 2542-5641; 2542-5641
• DOI: 10.1097/CM9.0000000000000855

Catheter ablation is effective in restoring sinus rhythm and left atrial appendage closure (LAAC) is increasingly used for stroke prevention in patients with atrial fibrillation (AF). We aimed to observe the feasibility and safety of performing AF ablation and LAAC in a single (one-stop) procedure. Consecutive AF patients who underwent the combined procedure of AF ablation and LAAC with WATCHMAN device between March 2017 and September 2018 were prospectively enrolled. Baseline and intra-procedural parameters were evaluated. Three-month and subsequent 1-year follow-up were performed in all and earlier-enrolled subjects, respectively. A total of 178 AF patients (94 males, 68.9 ± 8.1 years) underwent the one-stop procedure with CHA2DS2-VASc score 3.3 ± 1.5 and HAS-BLED score 1.6 ± 1.0, respectively. Pulmonary vein isolation was achieved in all patients while additional linear ablation was applied if the operator deemed necessary, yielding immediate ablation success rate of 98.9% (176/178). In the subsequent LAAC, satisfactory seal (residual leak <5 mm) was achieved in all patients. One stroke and four cardiac perforations occurred peri-operatively. At 3-month follow-up, sinus rhythm and satisfactory seal were maintained in 153/178 (86.0%) and 178/178 (100%) patients, respectively. One stroke and one delayed cardiac tamponade occurred, while no device-related thrombus or device migration was observed. During the 1-year follow-up for the earlier enrolled subjects, 52/72 (72.2%) of the patients maintained sinus rhythm. There was no stroke or systemic embolism observed. Combining catheter ablation and LAAC in a single procedure can be successfully and safely performed in non-valvular AF patients of Chinese population.