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Endoscopic Resection of Cecal Polyps Involving the Appendiceal Orifice: A KASID Multicenter Study
- Endoscopic Resection of Cecal Polyps Involving the Appendiceal Orifice: A KASID Multicenter Study
- Song E.M.; Yang H.-J.; Lee H.J.; Lee H.S.; Cha J.M.; Kim H.G.; Jung Y.; Moon C.M.; Kim B.C.; Byeon J.-S.
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- Digestive Diseases and Sciences
- vol. 62, no. 11, pp. 3138 - 3148
- Appendix; Colonic polyps; Colonoscopy; Endoscopic mucosal resection; Endoscopic submucosal dissection
- Springer New York LLC
- SCI; SCIE; SCOPUS
- Background: Endoscopic resection of polyps located at the appendiceal orifice (AO) is challenging, and the feasibility and outcomes of endoscopic resection for cecal polyps involving AO are unconfirmed. Aims: We evaluated the feasibility and outcomes of endoscopic resection for cecal polyps involving AO. Methods: In this retrospective, multicenter study involving nine tertiary referral centers, we evaluated 131 patients who underwent endoscopic resection for cecal polyps involving AO. Results: The median size of polyps resected was 10 mm (range 3–60 mm). Endoscopic mucosal resection, endoscopic piecemeal mucosal resection, and endoscopic submucosal dissection were performed in 75 (57.3%), 31 (23.7%), and 5 (3.8%) patients, respectively. The en bloc resection rate was 68.7%. Endoscopic complete resection was achieved in 123 lesions (93.9%). Intraprocedural and delayed bleeding occurred in 14 (10.7%) and three patients (2.3%), respectively, and perforation occurred in two patients (1.5%). Seven patients (5.3%) underwent additional surgery because of treatment failure or recurrence. Polyps of ≥20 mm in size showed significantly higher rates of perforation and additional surgery (p < 0.05), and a lower rate of en bloc resection (p < 0.005). Patients with polyps involving ≥75% of AO circumference exhibited a significantly lower rate of en bloc resection (p < 0.001), and significantly higher rates of surgery and recurrence (p < 0.05). Recurrence during follow-up occurred in 12 patients (15.6%); polyps involving ≥75% of AO circumference were an independent risk factor for recurrence. Conclusion: Endoscopic resection of cecal polyps involving AO is safe and effective in select patients. © 2017, Springer Science+Business Media, LLC.
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