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Hot avulsion versus argon plasma coagulation for the management of the non‐ensnarable polyp: A multicenter, randomized controlled trial
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Hot avulsion versus argon plasma coagulation for the management of the non‐ensnarable polyp: A multicenter, randomized controlled trial
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Hot avulsion versus argon plasma coagulation for the management of the non‐ensnarable polyp: A multicenter, randomized controlled trial
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Journal Article
Hot avulsion versus argon plasma coagulation for the management of the non‐ensnarable polyp: A multicenter, randomized controlled trial
2024
Overview
Background and Aim Snare resection of nonlifting colonic lesions often requires supplemental techniques. We compared the success rates of neoplasia eradication using hot avulsion and argon plasma coagulation in colonic polyps when complete snare polypectomy had failed. Methods Polyps that were not completely resectable by snare polypectomy were randomized to argon plasma coagulation or hot avulsion for completion of resection. Argon plasma coagulation was delivered using a forward shooting catheter, using a nontouch technique (flow 1.2 L, 35 watts). Hot avulsion was performed by grasping the neoplastic tissue with hot biopsy forceps and applying traction away from the bowel wall while using EndoCut I or soft coagulation for avulsion. Surveillance colonoscopies were performed at 6, 12, and 18 months. Results From November 2013 to July 2017, 59 patients were randomized to argon plasma coagulation (28) or hot avulsion (31). The median age was 69 (60–75), with 46% being female. The median residual tissue size was 10 mm (6–12). The residual adenoma rate at 6 months (hot avulsion 6% vs argon plasma coagulation 21% P = 0.09) and 18 months was not different between the groups (6.6% vs 3.6% P = 0.25). One patient in the argon plasma coagulation arm was diagnosed with metastatic cancer of likely colorectal origin despite benign histology in the original polypectomy specimen, supporting the importance of tissue acquisition. Conclusion Both hot avulsion and argon plasma coagulation are effective and safe modalities to complete resection of non‐ensnarable colonic polyps. This randomised controlled study compared neoplasia eradication using hot avulsion and argon plasma coagulation in colonic polyps when snare polypectomy had failed. The residual adenoma rate at 6 months (hot avulsion 6% vs argon plasma coagulation 21% p = 0.09) and 18 months was not different (6.6 % vs 3.6% p = .25). One patient in the argon plasma coagulation arm was diagnosed with metastatic cancer of likely colorectal origin despite benign histology in the original polypectomy specimen, supporting the importance of tissue acquisition.
