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Title: Frequent premature atrial complexes as a predictor of atrial fibrillation: Systematic review and meta-analysis
Authors: Narut Prasitlumkum
Pattara Rattanawong
Nath Limpruttidham
Chanavuth Kanitsoraphan
Natee Sirinvaravong
Pichatorn Suppakitjanusant
Pakawat Chongsathidkiet
Eugene H. Chung
Duke University Medical Center
University of Michigan, Ann Arbor
Faculty of Medicine, Ramathibodi Hospital, Mahidol University
University of Hawaii at Manoa
Faculty of Medicine, Siriraj Hospital, Mahidol University
Einstein Medical Center
Keywords: Medicine
Issue Date: 1-Sep-2018
Citation: Journal of Electrocardiology. Vol.51, No.5 (2018), 760-767
Abstract: © 2018 Elsevier Inc. Background: Frequent premature atrial complexes (PACs) are associated with higher morbidity and mortality. Recent studies suggest that frequent PACs are associated with new onset atrial fibrillation (AF). However, a systematic review and meta-analysis of the literature has not been done. We assessed the association between frequent PACs and new onset AF by a systematic review and a meta-analysis. Methods: We comprehensively searched the databases of MEDLINE and EMBASE from inception to September 2017. Included studies were published cohort (prospective or retrospective) that compared new onset AF among patients with and without frequent PACs documented by Holter monitoring or 12-lead electrocardiogram. Data from each study were combined using the random-effects, generic inverse variance method of DerSimonian and Laird to calculate risk ratios and 95% confidence intervals. Results: Twelve studies from 2009 to 2017 were included in this meta-analysis involving 109,689 subjects (9217frequent and 100,472 non-frequent PACs). Frequent PACs were associated with increased risk of new onset AF (pooled risk ratio = 2.76, 95% confidence interval: 2.05–3.73, p < 0.000, I 2 = 90.6%). Conclusion: Frequent PACs are associated with up to three-fold increased risk of new onset AF. Our study suggests that frequent PACs in general population is an independent predictor of new onset AF.
ISSN: 15328430
Appears in Collections:Scopus 2018

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