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Early experience using a left atrial appendage occlusion device in patients with atrial fibrillation

Authors
 Yung Ly Kim ; Boyoung Joung ; Hui-Nam Pak ; Young-Hoon Kim ; Moon Hyoung Lee ; Chi Young Shim ; Young Keun On 
Citation
 Yonsei Medical Journal, Vol.53(1) : 83~90, 2012 
Journal Title
 Yonsei Medical Journal 
ISSN
 0513-5796 
Issue Date
2012
Abstract
PURPOSE: Atrial fibrillation (AF) is one of the major risk factors for ischemic stroke, and 90% of thromboembolisms in these patients arise from the left atrial appendage (LAA). Recently, it has been documented that an LAA occlusion device (OD) is not inferior to warfarin therapy, and that it reduces mortality and risk of stroke in patients with AF. MATERIALS AND METHODS: We implanted LAA-ODs in 5 Korean patients (all male, 59.8 ± 7.3 years old) with long-standing persistent AF or permanent AF via a percutaneous trans-septal approach. RESULTS: 1) The major reasons for LAA-OD implantation were high risk of recurrent stroke (80%), labile international neutralizing ratio with hemorrhage (60%), and 3/5 (60%) patients had a past history of failed cardioversion for rhythm control. 2) The mean LA size was 51.3 ± 5.0 mm and LAA size was 25.1 × 30.1 mm. We implanted the LAA-OD (28.8 ± 3.4 mm device) successfully in all 5 patients with no complications. 3) After eight weeks of anticoagulation, all patients switched from warfarin to anti-platelet agent after confirmation of successful LAA occlusion by trans-esophageal echocardiography. CONCLUSION: We report on our early experience with LAA-OD deployment in patients with 1) persistent or permanent AF who cannot tolerate anticoagulation despite significant risk of ischemic stroke, or 2) recurrent stroke in patients who are unable to maintain sinus rhythm.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/92067
DOI
10.3349/ymj.2012.53.1.83
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
Yonsei Authors
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