Direct oral anticoagulants versus vitamin K antagonists after heart valve bioprosthetic replacement or repair: A systematic review and meta-analysis - 10/04/26
, Tom Lester b, Enrico Poletti c, Bleri Celmeta a, Tommaso Viva a, Arturo Bisogno a, Antonio Miceli a, Mattia Glauber aGraphical abstract |
Highlights |
• | DOAC use is off label for thromboembolism prevention after heart valve surgery. |
• | A few studies, mostly retrospective, have analysed the use of DOACs in this context. |
• | No significant differences thromboembolic or bleeding events compared to VKAs. |
• | Higher 30-day and mid-term death rates in the DOAC group. |
• | Analysis on death rates to be viewed cautiously as driven by a single study. |
Abstract |
Vitamin K antagonists are used as a temporary anticoagulation method after bioprosthetic valve replacement or repair. However, the novel direct oral anticoagulants may be a preferred method of anticoagulation because of their improved patient compliance. This meta-analysis aimed to evaluate the safety of direct oral anticoagulants versus vitamin K antagonists after biological valve replacement or repair. A systematic review and meta-analysis were performed for studies reporting the effect of direct oral anticoagulants versus vitamin K antagonists after biological valve replacement or repair. The inclusion criteria were studies of adults undergoing bioprosthetic mitral or aortic valve replacement or repair, comparing direct oral anticoagulants versus vitamin K antagonists in the early postoperative period. The main outcomes were thromboembolic and bleeding events, and short- and mid-term death rates. Six observational studies and one randomized controlled trial were included, with a total of 2994 direct oral anticoagulant recipients and 16,894 vitamin K antagonist recipients. There were no significant differences between the groups in terms of thromboembolic events (odds ratio: 0.82, 95% confidence interval: 0.45–1.49; P = 0.52) or bleeding events (odds ratio: 0.89, 95% confidence interval: 0.70–1.14, P = 0.36). Higher 30-day and mid-term death rates were observed in patients receiving direct oral anticoagulants, but this analysis was reported inconsistently, and was heavily influenced by a single study. In a mixed population of individuals undergoing bioprosthetic valve replacement or repair, there was no statistically significant difference between direct oral anticoagulants and vitamin K antagonists in terms of reducing thromboembolic or bleeding events. Further studies are needed to establish the optimal anticoagulation regimen in this context.
Le texte complet de cet article est disponible en PDF.Keywords : Heart valves, Anticoagulants, Bioprosthesis, Factor Xa inhibitors, Meta-analysis
Plan
Vol 119 - N° 4
P. 302-308 - avril 2026 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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