Sa1424 Application of a New Transmural Self-Expanding Metal Stent in 10 Patients for Retroperitoneal Endoscopic Interventions

Abstract

observe and treat the small intestine, in recent years, it has been reported that DBE is easy to insert and useful to observe the large intestine. Aim and Methods: Our purpose was to evaluate the efficacy and safety of DBE treatment of the tumor located in the proximal colon in a prospective, randomized trial.We treated the tumor located in the proximal colon using two types of scopes, the Conventional Scopes (CS) and Double Balloon Endoscopes (DBE). CS we used were EC450RD5M(Fujifilm Co.,Tokyo,Japan), and PCF-Q260JL/I (Olympus Co.,Tokyo, Japan) and DBE we used was EC450BI5 or EN530BI (Fujifilm Co.,Tokyo, Japan). We divided 62 cases into two groups : Group A (treated by CS), and Group B (treated by DBE). We examined the reaching time, the treatment time, the completing rate, the negative rate of cut end (lateral and vertical), the average hospitalization, and the perforation rate. Results: There were 31 cases in Group A and 31 cases in Group B. The method of treatment was polypectomy, Endoscopic Mucosal Resection (EMR) and Endoscopic Submucosal Dissection (ESD). The number of polypectomy, EMR and ESD in the Group A were 44 lesions, 21 lesions and 14 lesions, respectively and those in the Group B were 49 lesions, 19 lesions and 16 lesions, respectively. The reaching time to the cecum were 7.1 4.2 min. in the Group A and 4.4 2.1 min. in the Group B. The treatment time were 33.6 13.4min. in the Group A and 25.1 9.2min. in the Group B. The negative rate of cut end (lateral and vertical) were 88.1% in the Group A and 100% in the Group B. The perforation rate was 1.7% in the Group A and no cases in the the Group B. Conclusion: By using DBE, keeping the scope at stable position became possible and that that helped to treat the tumors safe and accurately.