Abstract

LANDAETA, Jorge et al. Applicability of a new mechanical device for ebdiscopic sub mucosal hybrid dissection in live experimental models. Gen [online]. 2012, vol.66, n.1, pp.27-29. ISSN 0016-3503.

Introduction: The endoscopic submucosal dissection is a promising therapeutic technique for bloc resection of gastrointestinal tumors. However, this technique has some disadvantages like long intervention time, complexity of procedure and complications rate. Objective: To show the applicability and security of the endoscopic submucosal hybrid dissection in pigs stomach alive, using a mechanical device to lift up the piece to be dissected. Method: 4 endoscopic submucosal hybrid dissection expert physicians, in live experimental models performed the submucosal endoscopic dissection using the Hybrid Knife technique and the mechanical device out of the working channel, in order to lift up the piece to be dissected.The intervention time and difficulty rate during the device introduction and the ESD (Endoscopic Sub mucosal Dissection) were documented. Results: A total of 11 procedures were performed. In the first 4 procedures, the average time of DSE was 6.5 min (lesions < 2cms), in the following 4 procedures 9.5 min (lesions between 2 to 3 cm) and in the last 3 procedures was 10.33 min (lesions > 3 cm). There were no complications. Conclusion: In our work, to use the mechanical device seems to ease the Hybrid ESD, making it less difficult, diminishing time and complication rates. Live study will be necessary.

Keywords : Hybrid; Endoscopic sub mucosal dissection; mechanical device.