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Endoscopic mucosal resection of colorectal adenomas > 20 mm: Risk factors for recurrence

World Journal of Gastrointestinal Endoscopy 2016年第5期8卷 276-281页

作者： Alexander Briedigkeit Omar Sultanie Bernd Sido Franz Ludwig Dumoulin Department of Medicine and Gastroenterology Gemeinschaftskrankenhaus Bonn 53113 Bonn Germany Department of General and Abdominal Surgery Gemeinschaftskrankenhaus Bonn 53113 Bonn Germany

AIM: To evaluate risk factors for local recurrence after endoscopic mucosal resection of colorectal adenomas > 20 ***: Retrospective data analysis of 216 endoscopic mucosal resections for colorectal adenomas > 20 mm in 179 patients(40.3% female; median age 68 years; range 35-91 years). All patients had at least 1 follow-up endoscopy with a minimum control interval of 2 mo(mean follow-up 6 mo/2.0-43.4 mo). Possible factors associated with local recurrence were analyzed by univariate and multivariate analysis. RESULTS: Median size of the lesions was 30 mm(20-70 mm),69.0% were localized in the right-sided(cecum,ascending and transverse) colon. Most of the lesions(85.6%) showed a non-pedunculated morphology and the majority of resections was in piecemeal technique(78.7%). Histology showed carcinoma or high-grade intraepithelial neoplasia in 51/216(23.6%) lesions including 4 low risk carcinomas(pT1 a,L0,V0,R0- G1/G2). Histologically proven recurrence was observed in 33/216 patients(15.3%). Patient age>65 years,polyp size>30 mm,non-pedunculated morphology,localization in the right-sided colon,piecemeal resection and tubular-villous histology were found as associated factors in univariate analysis. On multivariate analysis,only localization in the rightsided colon(HR = 6.842/95%CI:1.540-30.394; P=0.011),tubular-villous histology(HR = 3.713/95%CI: 1.617-8.528;P=0.002) and polyp size>30 mm(HR=2.563/95%CI:1.179-5.570; P=0.017) were significantly associated risk factors for adenoma recurrence. CONCLUSION: Meticulous endoscopic follow-up is warranted after endoscopic mucosal resection of adenomas localized in the right-sided colon larger than > 30 mm,with tubular-villous histology.

关键词： Colorectal adenoma Endoscopic mucosal resection Piecemeal resection Local recurrence rate tubular-villous adenoma

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