Endoscopic full thickness resection of low risk colorectal cancer using the OTSC-system in patients with a RX/R1 situation after conventional endoscopic polypectomy

Background: The „over the scope clipping-system“ (OTSC) is applied in cases of „endoscopic full-thickness resection“ (eFTR) of pre-malignant or malignant lesions in the colon. Objective: The objective of the presentation is to show the feasibility of an endoscopic grasp and snare technique for eFTR, combined with an OTSC-system for defect closure in case of patients with a RX/R1 situation of a low risk colorectal cancer after conventional endoscopic polypectomy. Patients and Interventions: In four patients with a RX/R1 situation after endoscopic polypectomy of low risk colorectal cancer in the sigma, who decline…