Abstract Background IBD had a relative risk of 2.2 for VTE compared to the normal population. In May 2020, an international consensus created a statement on VTE prevention in IBD patients. 28days of extended thromboprophylaxis was recommended after discharge only in high risk patients. We aimed to identify high-risk patients for VTE post-IBD-related bowel resection. Methods Retrospective review of 131 patients over 5 years of surgical admissions for IBD-related resection at DGH. Examined factors included patients’ demographics, risk factors for VTE, disease history, and compliance with extended thromboprophylaxis. SPSS22 and Chi-square test were used for analysis. Results The median age was37years.76(58%) were female,74(56.5%) were white-British, Chron’s disease (CD) was98(74.8%), median disease duration was65 months, 101(77.1%) were done laparoscopically, 87(66.4%) were elective, and the median LOS was7days. 5 patients (3.7%) had VTE events. No postoperative stroke happened. DVT and PE were associated with failure of extended thromboprophylaxis prescription (P=0.004,0.000). All VTE events were seen in the 1st 10 days post-discharge. Occurrence of DVT was associated with white-British ethnicity(P=0.000), CD> ulcerative colitis (P=0.001), emergency > elective surgery (P=0.026), bowel anastomosis >stoma formation (P=0.029), ITU admission (P=0.000), Post-operative leak (0.0001), postoperative wound complications(P=0.000). Surgical approach, previous VTE event, and site of diseases weren’t associated with VTE occurrence (P=0.8,0.97,0.94). Conclusion IBD patients are vulnerable to VTE events more than the normal population. Bowel resection in this group of people needs attention for extended VTE prophylaxis, particularly in patients with CD, ITU admission, postoperative leak, and wound complications. These data outline opportunities for improvement, particularly in regard to the extended VTE prophylaxis for 28 days in the before-mentioned high-risk patients.
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