Resumen

LANDAETA, J et al. Nuevo accesorio para la disección submucosal endoscopica (erbe hybrid knife): reporte de 2 casos. Gen [online]. 2011, vol.65, n.3, pp.234-236. ISSN 0016-3503.

Introduction: Recently there has been developed an accessory for endoscopic submucosal dissection (ESD) that combines an ultra-thin water jet high pressure for a submucosal hydrodissection with an electrocautery. Aim: initial experience with the use of ERBE Hybrid Knife for the DSE. Materials and patients: The study included 2 patients with laterally spreading flat adenomas of the colon and rectum, who underwent ESD with ERBE Hybrid Knife as a single instrument and ERBE VIO electrosurgical source-200 D. It was marked the area using coagulation (FORCED COAG). The jet of high pressure water was used intermittently to raise the submucosa during the dissection at a pressure between 45 and 60 bar. Then, a circumferential incision in the mucosa and the submucosal dissection were performed with modes ENDOCUT D and FORCED COAG of the same accessory. Results: The lesions were located in lower rectum and sigmoid colon, 1.5 and 3 cm in diameter respectively, which were resected in its entirety as a single segment. The mean time spent was 65 minutes. The procedures were performed with deep sedation assisted by an anesthesiologist. There were no major complications. The histology of the lesions was tubulovillous adenoma with mild dysplasia colon and rectal adenoma plane. Conclusion: The ERBE Hybrid Knife is an alternative for the ESD, simplifying the technique of using a single instrument. Prospective studies should be made to measure the impact on the standardization of the technique.

Palabras clave : Endoscopic submucosal dissection; Flat adenomas.