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Short-term and Long-term Risk of Stroke in Patients With Perioperative Atrial Fibrillation After Cardiac Surgery: Systematic Review and Meta-analysis

Perioperative atrial fibrillation (POAF) after cardiac surgery has been associated with an increased risk of stroke in some studies. However, the exact magnitude of this association during short-term and long-term follow-up remains unclear. We searched PubMed, Embase, and Cochrane Central Register o...

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Published in:CJC open (Online) 2022-01, Vol.4 (1), p.85-96
Main Authors: Wang, Michael K., Meyre, Pascal B., Heo, Rachel, Devereaux, P.J., Birchenough, Lauren, Whitlock, Richard, McIntyre, William F., Peter Chen, Yu Chiao, Ali, Muhammad Zain, Biancari, Fausto, Butt, Jawad Haider, Healey, Jeff S., Belley-Côté, Emilie P., Lamy, Andre, Conen, David
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Language:English
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Summary:Perioperative atrial fibrillation (POAF) after cardiac surgery has been associated with an increased risk of stroke in some studies. However, the exact magnitude of this association during short-term and long-term follow-up remains unclear. We searched PubMed, Embase, and Cochrane Central Register of Controlled Trials (CENTRAL) for the time period from database inception to October 2020. We included observational studies with ≥ 100 patients that reported data on short-term or long-term stroke risk in patients with and without POAF after cardiac surgery. Data were pooled using random-effects models. We reported summary risk ratios (RRs) for studies reporting multivariable adjusted results and calculated absolute risk differences (ARDs) with 95% confidence intervals (CIs). A total of 55 studies with 540,209 patients were included. POAF was associated with both an increased relative risk (RR 1.69; 95% CI, 1.41-2.03; I2 = 82%; 9 studies) and absolute risk of short-term stroke (4.5% vs 2.5%; ARD 2.0%; 95% CI, 1.28-2.89). POAF was associated with an increased relative risk (RR 1.20; 95% CI, 1.12-1.29; I2 = 16%; 10 studies) and absolute risk of long-term stroke (1.06 vs 0.88 per 100 patient-years; ARD 0.18 per 100 patient-years; 95% CI, 0.07-0.26). Sensitivity analyses of high-quality studies and studies reporting either ischemic or embolic strokes yielded similar findings. POAF after cardiac surgery was associated with an increased risk of both short-term and long-term stroke. However, the long-term stroke ARD was small, and whether these patients will benefit from long-term oral anticoagulation therapy is unclear. La fibrillation auriculaire périopératoire (FAPO) après une chirurgie cardiaque a été associée à un risque accru d’accident vasculaire cérébral (AVC) dans certaines études. Cependant, l’ampleur exacte de cette association durant le suivi à court et à long terme reste incertaine. Nous avons effectué des recherches dans les bases de données PubMed, Embase et CENTRAL (Cochrane Central Register of Controlled Trials) pour la période allant de la création de ces bases à octobre 2020. Nous avons inclus des études d’observation comptant ≥ 100 patients et rapportant des données sur le risque d’AVC à court ou à long terme chez les patients ayant présenté ou non une FAPO après une chirurgie cardiaque. Les données ont été regroupées à l’aide de modèles à effets aléatoires. Nous avons consigné les rapports de risque (RR) sommaires pour les études rapportant des ré
ISSN:2589-790X
2589-790X
DOI:10.1016/j.cjco.2021.09.011