Document Detail

Left atrial volume index as a predictor for occurrence of atrial fibrillation after ablation of typical atrial flutter.
MedLine Citation:
PMID:  20889311     Owner:  NLM     Status:  In-Process    
PURPOSE: Radiofrequency catheter ablation of the cavotricuspid isthmus (CTI) is effective in the treatment of typical atrial flutter (AFL) and atrial fibrillation (AF). AF and AFL often coexist. However, AF often occurs following successful ablation of CTI. The aim of this study was to investigate the predictors of concomitant AF following successful ablation of AFL.
METHODS: We enrolled 122 patients [59.1 ± 11.3 years, male 100 (82.0%)] with typical AFL, who received successful ablation of the CTI. They were followed up at outpatient clinic (24.6 ± 25.7 months). Twelve-lead electrocardiogram and Holter monitoring were used to confirm the diagnosis of recurrent AFL or AF. We assessed prior history of AF, structural heart disease, left ventricular ejection fraction, left atrial diameter (LAD), left atrial volume index (LAVI), and AFL cycle length.
RESULTS: Among the 122 ablated patients, 15 (12.3%) had recurrent AFL and 33 (27.0%) had recurrent AF. In univariate logistic analysis, LAD and LAVI could significantly predict the recurrence of AF after AFL ablation. However, multivariate logistic regression analysis found that the independent predictor of recurrent AF was LAVI. An LAVI of 42.6 mL may allow for the differentiation between only AFL and AFL with concomitant AF with 69.0% sensitivity and 69.8% specificity.
CONCLUSIONS: LAVI might be a useful predictor for occurrence of AF after ablation of typical AFL.
Young-Soo Lee; Dae Woo Hyun; Byung Chun Jung; Yong Keun Cho; Sang Hee Lee; Dong Gu Shin; Hyoung Seob Park; Seong Wook Han; Yoon Nyun Kim;
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of cardiology     Volume:  56     ISSN:  1876-4738     ISO Abbreviation:  J Cardiol     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804703     Medline TA:  J Cardiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  348-53     Citation Subset:  IM    
Copyright Information:
Copyright © 2010. Published by Elsevier Ltd.
Division of Cardiology, Catholic University of Daegu, Daegu, Republic of Korea.
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