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- W2040621661 abstract "Background: Megachannel is a new colonic access system allowing rapid, multiple passes of the colonoscope or other devices to the right colon. Once in place, the reinforced wall protects the colon from perforation risks. Aim of this study was to evaluate safety and clinical feasibility in patients undergoing colonoscopy. Methods: Patients scheduled for colonoscopy with suspected right colonic polypoid lesions were screened and included after written informed consent. The colonic access device (22 outer diameter, 100 cm in length) was constructed of a wire reinforced plastisol tube, with a rounded, removeable introducer plug. For all studies, the colonic access device was loaded onto a 160 cm lower GI endoscope and introduced via colonoscopic guidance. Results: The Megachannel was applied in 40 patients (18 female, mean age 47a) undergoing colonoscopy. In most centers, the cecum was reached in 90% of patients within 18min (3 to 35min), with 73 cm (60 to 100 cm) of the overtube being inserted into the colon, in one center the success rate was 45% within 15 min and 100 cm insertion length. Mild tissue bruises were observed in 5 patients, mild to moderate pain was reported in 3. In 11 patients the Megachannel assisted the removal of multiple polyps (2-8) as tissue was repeatedly retrieved through the device. The time to for polyp retrieval and scope reinsertion was 0,5 min (median). In one patient a EUS scope was delivered for evaluation of tumor wall infiltration before submucosal resection, in another patient a suction cap was successfully delivered to the right flexure for removal of an incomplete-lifting polyp due to scaring from a previous polypectomy attempt. Conclusions: This new colonic access system can be safely placed in the right colon and is useful for a variety of colonic interventions that require repeated insertion of the scope (such as removal and retrieval of multiple polyps) or delivery of bulky instruments such as EUS, side view endoscopes, banding devices or suction caps." @default.
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- W2040621661 date "2009-04-01" @default.
- W2040621661 modified "2023-09-24" @default.
- W2040621661 title "A New Colonic Access Device (Megachannel™) for Interventional Procedures At Colonoscopy: A Prospective, Multicenter Trial" @default.
- W2040621661 doi "https://doi.org/10.1016/j.gie.2009.03.1144" @default.
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