文摘
Background Portomesenteric venous thrombosis (PMVT) is an uncommon complication of abdominal surgery. The objective of this study was to assess PMVT risk factor profiles and patient outcomes after colorectal surgery. Methods A single center retrospective review of patients undergoing colorectal surgery was performed (2007-012). PMVT was defined as thrombus within the portal, splenic, or superior mesenteric vein on computed tomography (CT). Inferior mesenteric vein thrombosis was excluded. Independent samples t test was used to compare data variables between PMVT and non-PMVT patients. Univariate and multivariate logistic regression analyses were used to assess PMVT risk factors. Results There were 1,224 patients included (mean age 62?years, male?=?566). Elective bowel resection was performed for colon carcinoma (n?=?302), rectal carcinoma (n?=?112), ulcerative colitis (n?=?125), Crohn’s disease (n?=?78), polyps (n?=?117), and diverticulitis (n?=?215). Patients undergoing gynecological resections and emergent laparotomies were included (n?=?275). Thirty-six patients (3?%) were diagnosed with PMVT by CT: 17/36 on initial presentation and 19/36 by expert radiologist review. Patients with PMVT were younger (53 vs. 62?years, p?=?0.001) with higher BMI (30.5 vs. 26.7, p?p?p?p?p?p?p?p?p?=?0.001) were still significant predictors. No patients in the PMVT group suffered bowel infarction and no related mortalities occurred. Thirty-day readmission rates were higher in the PMVT group (53?% vs. 17?%, p? Conclusion BMI?≥?0?kg/m2, thrombocytosis, and restorative proctocolectomy were significant predictors of PMVT. Initial diagnostic studies showed a PMVT rate of 1.4?%; however, after expert focused radiologic review, the actual rate was 3?%. Thus, the diagnosis of PMVT is difficult and readmission after colorectal surgery should prompt its consideration.