PMID- 28444307 OWN - NLM STAT- MEDLINE DCOM- 20181126 LR - 20220408 IS - 1532-2092 (Electronic) IS - 1099-5129 (Linking) VI - 20 IP - 1 DP - 2018 Jan 1 TI - Left atrial volume predicts atrial fibrillation recurrence after radiofrequency ablation: a meta-analysis. PG - 33-42 LID - 10.1093/europace/eux013 [doi] AB - AIMS: Left atrial (LA) diameter is a predictor of atrial fibrillation (AF) recurrence following radiofrequency catheter ablation (RFA). However, LA volume (LAV) is more accurate in assessing LA size. Studies evaluating LAV as a predictor of AF recurrence are contradictory; therefore, we performed a meta-analysis to assess whether LAV is an independent predictor of AF recurrence following RFA. METHODS AND RESULTS: All studies reporting LAV/LAV index (LAVi) as a predictor of AF recurrence following RFA were included. For studies reporting mean LAV/ LAVi in patients with and without AF recurrence, standard difference in means (SDM) and standard errors were calculated, and combined using meta-analytical techniques. For studies reporting adjusted odds ratio (OR) for AF recurrence based on LAV/LAVi, log ORs were combined using generic inverse variance. Twenty one studies (3822 subjects) were included. Meta-analysis of 11 studies (1559 subjects) reporting LAV, showed that patients with AF recurrence had a higher mean LA volume compared to patients with no recurrence (SDM 0.801; CI 0.387-1.216). Data from 9 studies (1425 subjects) comparing LAVi showed that, patients with AF recurrence had a higher mean LAVi compared to patients with no recurrence (SDM-0.596; CI 0.305-0.888). Thirteen studies (2886 patients) reporting ORs for AF recurrence based on LAV/ LAVi, showed that LAV/LAVi was independently predictive of AF recurrence post-RFA (OR-1.032, CI- 1.012-1.052). CONCLUSIONS: Patients with AF recurrence following RFA have a higher mean LAV/LAVi compared to patients with no recurrence. Large LAV/LAVi increases the odds of AF recurrence post RFA. CI - Published on behalf of the European Society of Cardiology. All rights reserved. (c) The Author 2017. For permissions, please email: journals.permissions@oup.com. FAU - Njoku, Augustine AU - Njoku A AD - Division of Cardiology and Center for Cardiovascular Diseases & Sciences, LSUHSC Shreveport, LA, USA. FAU - Kannabhiran, Munish AU - Kannabhiran M AD - Division of Cardiology and Center for Cardiovascular Diseases & Sciences, LSUHSC Shreveport, LA, USA. FAU - Arora, Rishi AU - Arora R AD - Division of Cardiology and Center for Cardiovascular Diseases & Sciences, LSUHSC Shreveport, LA, USA. FAU - Reddy, Pratap AU - Reddy P AD - Division of Cardiology and Center for Cardiovascular Diseases & Sciences, LSUHSC Shreveport, LA, USA. FAU - Gopinathannair, Rakesh AU - Gopinathannair R AD - Division of Cardiovascular Medicine, University of Louisville, Louisville, KY, USA. FAU - Lakkireddy, Dhanunjaya AU - Lakkireddy D AD - Division of Cardiovascular Diseases and Center for Excellence in AF and Complex Arrhythmias, University of Kansas, Kansas City, KS, USA. FAU - Dominic, Paari AU - Dominic P AD - Division of Cardiology and Center for Cardiovascular Diseases & Sciences, LSUHSC Shreveport, LA, USA. LA - eng PT - Journal Article PT - Meta-Analysis PT - Review PL - England TA - Europace JT - Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology JID - 100883649 SB - IM MH - Atrial Fibrillation/diagnostic imaging/physiopathology/*surgery MH - *Atrial Function, Left MH - *Atrial Remodeling MH - Catheter Ablation/*adverse effects MH - Female MH - Heart Atria/diagnostic imaging/physiopathology/*surgery MH - Humans MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Observational Studies as Topic MH - Odds Ratio MH - Proportional Hazards Models MH - Recurrence MH - Risk Assessment MH - Risk Factors MH - Treatment Outcome OTO - NOTNLM OT - Atrial fibrillation OT - Atrial fibrillation recurrence OT - Left atrial volume OT - Meta-analysis OT - Radiofrequency ablation EDAT- 2017/04/27 06:00 MHDA- 2018/11/27 06:00 CRDT- 2017/04/27 06:00 PHST- 2016/11/17 00:00 [received] PHST- 2017/01/21 00:00 [accepted] PHST- 2017/04/27 06:00 [pubmed] PHST- 2018/11/27 06:00 [medline] PHST- 2017/04/27 06:00 [entrez] AID - 3748226 [pii] AID - 10.1093/europace/eux013 [doi] PST - ppublish SO - Europace. 2018 Jan 1;20(1):33-42. doi: 10.1093/europace/eux013.