Abstract
Introduction
Porto-mesenteric venous thrombosis (PMVT) is a significant complication that occurs more frequently after laparoscopic sleeve gastrectomy (SG) than other bariatric procedures and presents later than other venous thromboembolic (VTE) events often 2 weeks after the operation. The common current practice in bariatric surgery of perioperative chemoprophylaxis until discharge may not adequately prevent PMVT. Therefore, a 30-day post-discharge chemoprophylaxis (PDC) might reduce the incidence of PMVT. The objective of this study is to determine whether 30-day PDC with rivaroxaban 10 mg daily following SG can reduce the incidence of PMVT.
Methods
In a retrospective cohort study, 292 consecutive patients undergoing SG by a single surgeon were either prescribed rivaroxaban 10 mg daily for 30 days upon discharge (group A) or did not receive any PDC (group B). Primary outcome was PMVT and secondary outcome was bleeding. Patients on chronic anticoagulation therapy were excluded from the study.
Results
PMVT events differences were significant between the groups while bleeding events were not. Group A had zero PMVT events, while group B had four (p = .045). There were 4 bleeding events in group A and 7 bleeding events on group B (p = .341).
Conclusion
A 30-day PDC regimen of rivaroxaban 10 mg daily is both safe and effective. This study demonstrated zero PMVT events without an increased risk of bleeding using this regimen.
Graphical Abstract
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Dr. Swartz and Ms. Hood receive financial support for attending symposia by their employer. Dr. Swartz is a consultant for Intuitive Surgical Inc.
All other authors declare no competing interests.
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Key Points
• Portovenous mesenteric venous thrombosis (PMVT) is a relatively rare complication of sleeve gastrectomy (1–3%) but may be associated with significant morbidity and mortality.
• Current venous thromboembolic (VTE) chemoprophylactic regimens for bariatric surgery vary widely, and extended post-discharge prophylaxis is not routinely used.
• PMVT occurs at a median time of 14 days post-sleeve gastrectomy and may not be adequately prophylaxed by a short in-hospital course of anticoagulation.
• This study found that patients receiving a 30-day postoperative regimen of rivaroxaban added to perioperative anticoagulation did not develop PMVT, while a similar cohort of patients receiving perioperative anticoagulation only had a 2.7% incidence (p=0.043).
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Swartz, D.E., Hood, L., Swartz, D.R. et al. 30-Day Post-Discharge Prophylaxis with Rivaroxaban Prevents Porto-mesenteric Venous Thrombosis Following Laparoscopic Sleeve Gastrectomy. OBES SURG 33, 1026–1031 (2023). https://doi.org/10.1007/s11695-023-06471-z
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DOI: https://doi.org/10.1007/s11695-023-06471-z