계명대학교 의학도서관 Repository

The impact of catheter ablation of atrial fibrillation on the left atrial volume and function: study using three-dimensional echocardiography

Metadata Downloads
Author(s)
황종민박형섭한성욱이철현김인철조윤경윤혁준김형섭남창욱허승호
Alternative Author(s)
Hwang, Jong MinPark, Hyoung SeobHan, Seong WookLee, Cheol HyunKim, In CheolCho, Yun KyeongYoon, Hyuck JunKim, Hyung SeopNam, Chang WookHur, Seung Ho
Publication Year
2020
Keyword
Atrial fibrillationAtrial remodelingCatheter ablationLeft atriumThree-dimensional echocardiography
Abstract
Purpose:
The exact correlation between the baseline left atrial (LA) volume (LAV) and atrial fibrillation (AF) radiofrequency catheter ablation (RFCA) outcomes and changes to the LA after AF RFCA has not yet been fully understood. We sought to evaluate the serial changes in the LAV and LA function after RFCA using 3D echocardiography.

Methods:
Consecutive patients who received RFCA of paroxysmal (PAF) or persistent AF (PeAF) at our center between January 2013 and March 2016 were included. Real-time 3D apical full-volume images were acquired, and a 3D volumetric assessment was performed using an automated three-beat averaging method. The LAV index (LAVI) was calculated and the LA ejection fraction (LAEF) was calculated as [LAVmax - LAVmin]/LAVmax.

Results:
Ninety-nine total patients were enrolled, and the mean age was 58.0 ± 8.2 years and 75 (74.7%) were male. There were 59 (59.6%) PAF patients and the remaining 40 (40.4%) had PeAF. AF recurred in 5 of 59 (8.5%) PAF and in 10 of 40 (25%) PeAF patients. The LAVImax increased on 1 day, decreased at 3 months, and then increased again at 1 year but was lower than that at baseline. The LAEF changes were similar to the volume changes but were more prominent in PeAF than PAF patients. The baseline 3D LAVImax was an independent predictor of AF recurrence after RFCA and the cut-off value was 44.13 ml/m2.

Conclusion:
In our study, even after 3 months of scar formation due to ablation, structural remodeling of the LA continued. The changes were more prominent in the non-recurrent, PeAF patients.
Department
Dept. of Internal Medicine (내과학)
Publisher
School of Medicine (의과대학)
Citation
Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing., Vol.57(null) : 87-95, 2020
Type
Article
ISSN
1572-8595
DOI
10.1007/s10840-019-00696-8
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/42640
Authorize & License
  • AuthorizeOpen
Files in This Item:

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.