Abstract
Background
The use of direct oral anticoagulants (DOACs) as an alternative to low-molecular-weight heparin (LMWH) for extended thromboprophylaxis of abdominal/pelvic cancer-related postoperative thromboembolism (VTE) is unclear. We aim to investigate the efficacy and safety of DOACs vs. LMWH in these patients.
Methods
A systematic review was conducted using EMBASE, MEDLINE, CENTRAL, and Web of science through May 19th, 2023 for all randomized controlled trials (RCTs) and observational studies that compared the outcomes with DOACs vs. LMWH for extended thromboprophylaxis among patients undergoing abdominal/pelvic cancer surgery. Primary efficacy outcome was clinical VTE, and safety outcome was clinically relevant bleeding complications reported within the 30-day postoperative period. This study was registered in PROSPERO (CRD42023413175).
Results
We identified 5078 articles and selected 29 full-text articles for eligibility. A total of 9 studies (2 RCTs and 7 observational studies) encompassing 2651 patients were included for systematic review and 7 for meta-analysis. When compared with LMWH extended thromboprophylaxis, DOACs had a similar incidence of VTE (RR: 0.65 [95% CI: 0.32–1.33], I2 = 0%), major bleeding (RR: 1.68 [95% CI: 0.36–7.9], I2 = 26%), and clinically relevant non-major bleeding (RR: 0.68 [95% CI: 0.39–1.19], I2 = 0%). Subgroup analysis suggested no difference according to the study type (RCTs versus observational studies) regarding clinical VTE or major bleeding (Pinteraction = 0.43 and Pinteraction = 0.71, respectively).
Conclusion
Our results suggest that DOACs for extended thromboprophylaxis were an effective and safe alternative to LMWH after major abdominal/pelvic cancer-related surgery.
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Open access funding is provided by Fujian Maternity and Child Health Hospital. The authors received no funding for this work.
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JHZ and HZ: conceived and designed the study. JHZ and JJM: supervised the study. HZ, LLY, JTZ, and FXM: reviewed the literature, collected, analyzed, and interpreted the data, and drafted the manuscript. All authors read and approved the final manuscript.
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Hong Zhou, Ling-Ling Ye, Jin-Tuo Zhou, Fu-Xin Ma, Jin-Jie Ma, and Jin-hua Zhang have no conflicts of interest or financial ties to disclose.
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Zhou, H., Ye, LL., Zhou, JT. et al. Direct oral anticoagulants (DOACs) versus low-molecular-weight heparin (LMWH) for extended thromboprophylaxis following major abdominal/pelvic cancer-related surgery: a systematic review and meta-analysis. Surg Endosc 38, 1131–1138 (2024). https://doi.org/10.1007/s00464-023-10649-y
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DOI: https://doi.org/10.1007/s00464-023-10649-y