Objective:To evaluate the diagnostic and therapeutic value of intraoperative enteroscopy in patients with intestinal vascular malformation. Methods:The clinical data of 17 cases of intestinal vascular malformation admitted from January 2003 to January 2005 in Affiliated Drum Tower Hospital of Medical School of Nanjing University were analyzed retrospectively. Results:All cases received preoperative gastroscopy examination to exclude any gastricduodenal bleeding, as well as colonoscopy examination to exclude lower digestive tract (colon and rectum) bleeding.The capsule endoscopy examinations were also carried out with the diagnosis of intestinal vascular malformation (10/17) and obscure gastrointestinal bleeding (7/17).All the cases had the indication of exploratory laparotomy.The operations and the intraoperative enteroscopy were carried out.All the postoperative specimen were proved to be intestinal vascular malformation by pathological examination.All the cases were followed up for 2-4 years with an average of 33 months and no rehaemorrhagia occurred. Conclusion:Intraoperative enteroscopy could afford accurate qualitative and localized diagnosis,so the intraoperative enteroscopy has an extremely important value in the diagnosis and treatment of intestinal vascular malformation,and could serve as a main means in the future.