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Kaur H, Tao B, Silverman M, Healey JS, Belley-Cote EP, Islam S, Whitlock RP, Devereaux PJ, Conen D, Bidar E, Kawczynski M, Ayala-Paredes F, Ayala-Valani LM, Sandgren E, El-Chami MF, Jørgensen TH, Thyregod HGH, Sabbag A, McIntyre WF. Recurrence of new-onset post-operative AF after cardiac surgery: detected by implantable loop recorders: A systematic review and Meta-analysis. Int J Cardiol 2024; 404:131930. [PMID: 38447764 DOI: 10.1016/j.ijcard.2024.131930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/28/2024] [Accepted: 03/01/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND Atrial fibrillation (AF) is one of the most common complications after cardiac surgery. New-onset post-operative AF may signal an elevated risk of AF and associated outcomes in long-term follow-up. We aimed to estimate the rate of AF recurrence as detected by an implantable loop recorder (ILR) in patients experiencing post-operative AF within 30 days after cardiac surgery. METHODS We searched MEDLINE, Embase and Cochrane CENTRAL to April 2023 for studies of adults who did not have known AF, experienced new-onset AF within 30 days of cardiac surgery and received an ILR. We pooled individual participant data on timing of AF recurrence using a random-effects model with a frailty model applied to a Cox proportional hazard analysis. RESULTS From 8671 citations, 8 single-centre prospective cohort studies met eligibility criteria. Data were available from 185 participants in 7 studies, with a median follow-up of 1.7 (IQR: 1.3-2.8) years. All included studies were at a low risk of bias. Pooled AF recurrence rates following 30 post-operative days were 17.8% (95% CI 11.9%-23.2%) at 3 months, 24.4% (17.7%-30.6%) at 6 months, 30.1% (22.8%-36.7%) at 12 months and 35.3% (27.6%-42.2%) at 18 months. CONCLUSIONS In patients who experience new-onset post-operative AF after cardiac surgery, AF recurrence lasting at least 30 s occurs in approximately 1 in 3 in the first year after surgery. The optimal frequency and modality to use for monitoring for AF recurrence in this population remain uncertain.
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Affiliation(s)
- Hargun Kaur
- Michael G. DeGroote School of Medicine, Hamilton, Ontario, Canada
| | - Brendan Tao
- University of British Columbia, British Columbia, Canada
| | - Max Silverman
- Michael G. DeGroote School of Medicine, Hamilton, Ontario, Canada
| | | | | | | | | | | | - David Conen
- Population Health Research Institute, Ontario, Canada
| | - Elham Bidar
- Maastricht University Medical Centre (MUMC), Maastricht, the Netherlands; CardioVascular Research Institute Maastricht (CARIM), the Netherlands
| | - Michal Kawczynski
- Maastricht University Medical Centre (MUMC), Maastricht, the Netherlands; CardioVascular Research Institute Maastricht (CARIM), the Netherlands
| | | | | | - Emma Sandgren
- Department of Medicine, Halland Hospital Varberg, Varberg, Sweden
| | - Mikhael F El-Chami
- Department of Medicine, Emory University School of Medicine, Atlanta, United States of America
| | | | | | - Avi Sabbag
- Davidai Arrhythmia Center, Sheba Medical Center, Ramat Gan and the Faculty of Median, Tel-Aviv University, Israel
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