Early postoperative atrial fibrillation is associated with late mortality after cardiac surgery: a systematic review and reconstructed individual patient data meta-analysis

Abstract Background Early postoperative atrial fibrillation (early-POAF) is the most common complication after cardiac surgery. Although prior studies have demonstrated an association between early-POAF and late outcomes, it is questionable whether these long-term adverse events result from early-PO...

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Main Authors: Michal J. Kawczynski, Claudia A. J. van der Heijden, Jos G. Maessen, Ulrich Schotten, Mariusz Kowalewski, Piotr Suwalski, Elham Bidar, Bart Maesen
Format: Article
Language:English
Published: BMC 2025-06-01
Series:Journal of Cardiothoracic Surgery
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Online Access:https://doi.org/10.1186/s13019-025-03504-9
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author Michal J. Kawczynski
Claudia A. J. van der Heijden
Jos G. Maessen
Ulrich Schotten
Mariusz Kowalewski
Piotr Suwalski
Elham Bidar
Bart Maesen
author_facet Michal J. Kawczynski
Claudia A. J. van der Heijden
Jos G. Maessen
Ulrich Schotten
Mariusz Kowalewski
Piotr Suwalski
Elham Bidar
Bart Maesen
author_sort Michal J. Kawczynski
collection DOAJ
description Abstract Background Early postoperative atrial fibrillation (early-POAF) is the most common complication after cardiac surgery. Although prior studies have demonstrated an association between early-POAF and late outcomes, it is questionable whether these long-term adverse events result from early-POAF or from comorbidities that underlie the development of early-POAF. Therefore, the aim of this study was to investigate the association of early-POAF with late mortality and stroke after adjustment for age and cardiovascular comorbidities. Methods A systematic search was conducted to identify studies reporting on late mortality after cardiac surgery in patients with and without early-POAF. Articles presenting Kaplan–Meier were included for a pooled analysis of late mortality (primary outcome) and stroke (secondary outcome). Individual time-to-event data were reconstructed from the Kaplan–Meier curves and incorporated into a multivariable mixed-effects Cox model. Results In total, 33 studies were included in the analysis for late mortality (131 031 patients) and 10 studies in the analysis for late stroke (42 042 patients). Overall, 36 991 patients had early-POAF with a pooled incidence of 31.5% (95% CI: 27.7 to 35.6%). Unadjusted analysis showed that early-POAF was significantly associated with late mortality (Hazard Ratio [HR] = 1.62, 95%CI: 1.58–1.67, P < 0.001) and late stroke (HR = 1.72, 95%CI: 1.61–1.85, P < 0.001). Early-POAF was significantly associated with late mortality (adjusted HR = 1.19, 95% CI: 1.07–1.33, P = 0.002), but not with late stroke (adjusted HR = 1.14, 95% CI: 0.96–1.35, P = 0.122) after adjustment for age, comorbidities, surgery type, and the random effects term. Conclusion Early-POAF after cardiac surgery is significantly associated with late mortality, but not with late stroke, after adjustments for age, sex, cardiovascular comorbidities, and type of surgery.
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spelling doaj-art-81bd6fce172448e18742b1d15bbbb0762025-08-20T02:10:32ZengBMCJournal of Cardiothoracic Surgery1749-80902025-06-0120111310.1186/s13019-025-03504-9Early postoperative atrial fibrillation is associated with late mortality after cardiac surgery: a systematic review and reconstructed individual patient data meta-analysisMichal J. Kawczynski0Claudia A. J. van der Heijden1Jos G. Maessen2Ulrich Schotten3Mariusz Kowalewski4Piotr Suwalski5Elham Bidar6Bart Maesen7Department of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical CentreDepartment of Cardiology, Heart and Vascular Centre, Maastricht University Medical CentreDepartment of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical CentreDepartment of Physiology, Maastricht UniversityCardiovascular Research Institute Maastricht (CARIM)Clinical Department of Cardiac Surgery and Transplantology, National Medical Institute of the Ministry of Interior and Administration, Centre of Postgraduate Medical EducationDepartment of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical CentreDepartment of Cardiothoracic Surgery, Heart and Vascular Centre, Maastricht University Medical CentreAbstract Background Early postoperative atrial fibrillation (early-POAF) is the most common complication after cardiac surgery. Although prior studies have demonstrated an association between early-POAF and late outcomes, it is questionable whether these long-term adverse events result from early-POAF or from comorbidities that underlie the development of early-POAF. Therefore, the aim of this study was to investigate the association of early-POAF with late mortality and stroke after adjustment for age and cardiovascular comorbidities. Methods A systematic search was conducted to identify studies reporting on late mortality after cardiac surgery in patients with and without early-POAF. Articles presenting Kaplan–Meier were included for a pooled analysis of late mortality (primary outcome) and stroke (secondary outcome). Individual time-to-event data were reconstructed from the Kaplan–Meier curves and incorporated into a multivariable mixed-effects Cox model. Results In total, 33 studies were included in the analysis for late mortality (131 031 patients) and 10 studies in the analysis for late stroke (42 042 patients). Overall, 36 991 patients had early-POAF with a pooled incidence of 31.5% (95% CI: 27.7 to 35.6%). Unadjusted analysis showed that early-POAF was significantly associated with late mortality (Hazard Ratio [HR] = 1.62, 95%CI: 1.58–1.67, P < 0.001) and late stroke (HR = 1.72, 95%CI: 1.61–1.85, P < 0.001). Early-POAF was significantly associated with late mortality (adjusted HR = 1.19, 95% CI: 1.07–1.33, P = 0.002), but not with late stroke (adjusted HR = 1.14, 95% CI: 0.96–1.35, P = 0.122) after adjustment for age, comorbidities, surgery type, and the random effects term. Conclusion Early-POAF after cardiac surgery is significantly associated with late mortality, but not with late stroke, after adjustments for age, sex, cardiovascular comorbidities, and type of surgery.https://doi.org/10.1186/s13019-025-03504-9Postoperative atrial fibrillationCardiac surgeryMeta-analysisLong-term outcomes
spellingShingle Michal J. Kawczynski
Claudia A. J. van der Heijden
Jos G. Maessen
Ulrich Schotten
Mariusz Kowalewski
Piotr Suwalski
Elham Bidar
Bart Maesen
Early postoperative atrial fibrillation is associated with late mortality after cardiac surgery: a systematic review and reconstructed individual patient data meta-analysis
Journal of Cardiothoracic Surgery
Postoperative atrial fibrillation
Cardiac surgery
Meta-analysis
Long-term outcomes
title Early postoperative atrial fibrillation is associated with late mortality after cardiac surgery: a systematic review and reconstructed individual patient data meta-analysis
title_full Early postoperative atrial fibrillation is associated with late mortality after cardiac surgery: a systematic review and reconstructed individual patient data meta-analysis
title_fullStr Early postoperative atrial fibrillation is associated with late mortality after cardiac surgery: a systematic review and reconstructed individual patient data meta-analysis
title_full_unstemmed Early postoperative atrial fibrillation is associated with late mortality after cardiac surgery: a systematic review and reconstructed individual patient data meta-analysis
title_short Early postoperative atrial fibrillation is associated with late mortality after cardiac surgery: a systematic review and reconstructed individual patient data meta-analysis
title_sort early postoperative atrial fibrillation is associated with late mortality after cardiac surgery a systematic review and reconstructed individual patient data meta analysis
topic Postoperative atrial fibrillation
Cardiac surgery
Meta-analysis
Long-term outcomes
url https://doi.org/10.1186/s13019-025-03504-9
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