IMR Press / RCM / Volume 23 / Issue 10 / DOI: 10.31083/j.rcm2310346
Open Access Original Research
Direct Oral Anticoagulants (DOACs) are Non-Inferior to Vitamin K Antagonists for Patients Undergoing Transcatheter Aortic Valve Replacement with Indications of Anticoagulation
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1 Department of Pharmacy, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, 200127 Shanghai, China
2 Department of Evidence-Based Medicine and Clinical Epidemiology, West China Hospital, Sichuan University, 610041 Chengdu, Sichuan, China
3 Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, 610072 Chengdu, Sichuan, China
4 Drug Clinical Comprehensive Evaluation Group, Shanghai Pharmaceutical Association, 200040 Shanghai, China
*Correspondence: guzhichun213@163.com (Zhi-Chun Gu); bianyuan567@126.com (Yuan Bian)
These authors contributed equally.
Academic Editor: Yan Topilsky
Rev. Cardiovasc. Med. 2022, 23(10), 346; https://doi.org/10.31083/j.rcm2310346
Submitted: 22 May 2022 | Revised: 30 July 2022 | Accepted: 8 August 2022 | Published: 17 October 2022
Copyright: © 2022 The Author(s). Published by IMR Press.
This is an open access article under the CC BY 4.0 license.
Abstract

Background: The best anticoagulation choice for patients undergoing transcatheter aortic valve replacement (TAVR) with indications of oral anticoagulation (OAC) remains uncertain. We carried out a comprehensive analysis adopting updated evidence that investigated the efficacy and safety of direct oral anticoagulants (DOACs) versus vitamin K antagonists (VKAs) in this population. Methods: A systematic search has been conducted through PubMed, Embase, and Cochrane Library to collect randomized controlled trials (RCTs) and real-world studies comparing the therapy outcomes of DOACs with VKAs in patients undergoing TAVR with indications of OAC up to Dec 2021. Included studies reported all-cause mortality, bleeding, stroke, or composite endpoint. A random-effects model was used and followed a sensitivity analysis based on the heterogeneity. In addition, five scenario analyses were performed to robust our findings. Results: Our analysis included 11 articles enrolling a total of 8934 patients undergone TAVR with indications of OAC (DOACs group = 3890, VKAs group = 5044). Pooled analysis revealed no significant different risk of all-cause mortality (aHR: 0.95, 95% CI: 0.65–1.39, I2: 90.6%), stroke (aHR: 0.86, 95% CI: 0.55–1.35, I2: 44.3%), bleeding (aHR: 0.83, 95% CI: 0.61–1.13, I2: 76.3%), and composite endpoint (aHR: 1.05, 95% CI: 0.88–1.24, I2: 11.7%) in the DOACs and VKAs groups. Various forms of death, stroke and bleeding, including cardiovascular death (aHR: 0.92, 95% CI: 0.64–1.33, I2: 34.1%), hemorrhagic stroke (aHR: 0.63, 95% CI: 0.23–1.75, I2: 22.7%), ischemic stroke (aHR: 0.79, 95% CI: 0.56–1.15, I2: 0.0%), transient ischemic attack (aHR: 0.75, 95% CI: 0.40–1.41, I2: 0.0%), major or life-threatening bleeding (aHR: 0.96, 95% CI: 0.74–1.24, I2: 27.9%), and minor bleeding (aHR: 0.90, 95% CI: 0.52–1.57, I2: 54.3%), also showed similar rates among DOACs and VKAs groups. The results based on five scenarios confirmed the said findings. Conclusions: Compared with VKAs, the efficacy and safety of DOACs were comparable for treating TAVR patients combined with anticoagulation indications. Further large-scale RCTs investigating more detailed scenarios are still needed to confirm the optimal anticoagulation strategy.

Keywords
valve replacement
anticoagulation
edoxaban
apixaban
thromboembolism
hemorrhage
Funding
SHYXH-ZP-2021-001/Research Project of Drug Clinical Comprehensive Evaluation and Drug Treatment Pathway
RJPY-LX-008/Clinical Research Innovation and Cultivation Fund of Ren Ji hospital
RJTJ-JX-001/Ren Ji Boost Project of National Natural Science Foundation of China
Figures
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