Handcrafted two-channel colonoscope for grasping-forceps-assisted resection of giant pedunculated polyps.

Background: Colonoscopic polypectomy of giant pedunculated polyps has an increased risk of bleeding and is technically difficult. To facilitate the removal of the polyps, we handcrafted a two-channel colonoscope and applied it for grasping-forceps-assisted resection.

Methods: We easily handcrafted a two-channel colonoscope by taping a plastic tube along the shaft of a standard colonoscope and used it for the technique in 10 patients with 12 giant pedunculated polyps. Methods: The colonoscope with forceps assistance proved to be satisfactory for handling detachable and polypectomy snares. Immediate bleeding occurred in one patient because the detachable snare could not be maneuvered over the polyp. In 3 patients, the plastic tube became mobile during the procedure because the tape that attached the tube became loose. No other complications occurred.

Conclusions: A handcrafted two-channel colonoscope for grasping-forceps-assisted resection of giant pedunculated polyps is effective for the prevention of postpolypectomy bleeding and the reduction of technical difficulties.