Background: Porto-mesenteric venous thrombosis (PMVT) is an uncommon but serious complication. Data on the risk factors for PMVT following total colectomy with ileorectal anastomosis or end ileostomy (TC/IRA or EI) is limited. This study aimed to evaluate the factors associated with PMVT after TC/IRA or EI.
Methods: Patients who underwent elective TC/IRA or EI between January 2010 and December 2014 were identified from institutional database. Patients who had CT proven PMVT within 30 days of surgery were included in the PMVT positive group. Demographics and perioperative/postoperative 30-day outcomes were compared between groups.
Results: Out of 832 patients, 34 patients (4.1%) were diagnosed with PMVT. PMVT positive group were younger (35.8vs.41 years, p = 0.03). Postoperative organ-space surgical site infection (17.6% vs. 4.8%, p = 0.007), deep venous thrombosis (8.8%vs.1.5%, p = 0.02), ileus (38.2%vs.20.8%, p = 0.018), and readmission (50.0%vs.12.7%, p < 0.001) were more common in patients with PMVT, who also had longer hospital stay (8.5vs.6 days, p = 0.002).
Conclusions: PMVT after TC/IRA or EI may occur in non-IBD patients. PMVT should be included in differential diagnosis after TC/IRA or EI in patients with intraabdominal infection or ileus, especially in younger patients.
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