Annals of Coloproctology

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Venous thromboembolism among Asian populations with localized colorectal cancer undergoing curative resection: is pharmacological thromboprophylaxis required? A systematic review and meta-analysis: Shih Jia Janice Tan, Emile Kwong-Wei Tan, Yvonne Ying Ru Ng, Rehena Sultana, John Carson Allen, Isaac Seow-En, Ronnie Mathew, Aik Yong Chok; Ann Coloproctol. 2024;40(3):200-209. Published online May 16, 2024; DOI: https://doi.org/10.3393/ac.2022.01046.0149

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Purpose
We compared the incidence of venous thromboembolism (VTE) among Asian populations with localized colorectal cancer undergoing curative resection with and without the use of pharmacological thromboprophylaxis (PTP).
Methods
A comprehensive literature search was undertaken to identify relevant studies published from January 1, 1980 to February 28, 2022. The inclusion criteria were patients who underwent primary tumor resection for localized nonmetastatic colorectal cancer; an Asian population or studies conducted in an Asian country; randomized controlled trials, case-control studies, or cohort studies; and the incidence of symptomatic VTE, deep vein thrombosis, and/or pulmonary embolism as the primary study outcomes. Data were pooled using a random-effects model. This study was registered in PROSPERO on October 11, 2020 (No. CRD42020206793).
Results
Seven studies (2 randomized controlled trials and 5 observational cohort studies) were included, encompassing 5,302 patients. The overall incidence of VTE was 1.4%. The use of PTP did not significantly reduce overall VTE incidence: 1.1% (95% confidence interval [CI], 0%–3.1%) versus 1.9% (95% CI, 0.3%–4.4%; P = 0.55). Similarly, PTP was not associated with significantly lower rates of symptomatic VTE, proximal deep vein thrombosis, or pulmonary embolism.
Conclusion
The benefit of PTP in reducing VTE incidence among Asian patients undergoing curative resection for localized colorectal cancer has not been clearly established. The decision to administer PTP should be evaluated on a case-bycase basis and with consideration of associated bleeding risks.

Citations

Citations to this article as recorded by

Effectiveness and Safety of Long-Term Venous Thromboembolism Prophylaxis After Colorectal Cancer Surgery: A Retrospective Study
Ying Zhang, Xiaozhu Zhou, Yi Wu, Shicai Chen, Xiangli Cui, Ying Zhao
Drugs - Real World Outcomes.2025; 12(3): 479. CrossRef
Machine learning-based risk prediction of postoperative deep vein thrombosis in Chinese patients undergoing gastrointestinal surgery
Likui Huang, Lihua Gong, Jun Chen, Xiaojing Chen, Bicha Yao, Zhengrong Wang, Shuwei Weng
Frontiers in Cardiovascular Medicine.2025;[Epub] CrossRef

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