Objective To analyze the clinical characteristics,diagnosis and treatment of patients with mesenteric venous thrombosis early after operation. Methods A retrospective study was performed on the clinical data of 7 patients with mesenteric venous thrombosis early after operation from 1990 to 2004. Results Patients had main clinical manifestetations of severe abdominal pain and vomiting,but abdominal signs were slight. The systemic toxic symptoms occurred in 2 cases at late course. The examination of abdominal...