High Incidence of Postoperative Silent Venous Thromboembolism in Ulcerative Colitis
Abstract Purpose: The incidence of postoperative venous thromboembolism (VTE) is high in patients with inflammatory bowel diseases. We aimed to analyze the incidence and predictive factors of postoperative VTE.Methods: Patients with ulcerative colitis who underwent colon and rectum surgery during 2010–2018 were included. We retrospectively investigated the incidence of postoperative VTE.Results: A total 140 cases of colorectal surgery were included. Postoperative VTE was detected in 24 (17.1%). All patients with VTE had no specific symptoms related to thrombus, except one pulmonary embolism. Portal–mesenteric venous thrombosis was the most frequent (18, 75%); of these, 15 patients underwent total proctocolectomy (TPC) with ileal pouch–anal anastomosis (IPAA). In univariate analysis, VTE occurred more frequently in patients with neoplasia than refractory to medications (27.2% vs. 12.5%; p<0.031). TPC with IPAA was more associated with developing VTE (28%) than total colectomy (10.5%) or proctectomy (5.9%). On logistic regression analysis of predictive risk factors, TPC with IPAA, total colectomy, longer operative time (>4 hours), and high serum D-dimer levels (>5.3 μg/mL) the day following surgery were identified. Conclusion: Postoperative VTE occurred frequently and asymptomatic, especially after TPC with IPAA. D-dimer the day after surgery may be useful predictor of VTE.