A novel multimodality endoscopic device for colonic submucosal dissection using a combination of bipolar radiofrequency and microwave modalities.

Background And Study Aims: Current submucosal dissection devices are technically challenging to use, resulting in long and sometimes incomplete colonic polyp resections. The aim of this feasibility preclinical study was to evaluate a new, multimodality instrument with novel electrocautery properties.

Methods: Six female adult pigs underwent colonic submucosal resections.