Risk stratification of colorectal polyps for predicting residual or recurring adenoma using the Size/Morphology/Site/Access score:
2018
Background and AimsEndoscopic mucosal resection is an effective and safe procedure to manage large non-pedunculated colonic polyps for which residual/recurrent adenoma is the main drawback. Size/Morphology/Site/Access score determines polypectomy difficulty. We aimed to describe residual/recurrent adenoma rate according to Size/Morphology/Site/Access and to select the ize/Morphology/Site/Access cut-off to predict low residual/recurrent adenoma.MethodsThis was a retrospective cohort study of endoscopic mucosal resection for large non-pedunculated colonic polyps performed in a tertiary centre.ResultsThree hundred and sixteen procedures were included. The mean size of lesions was 34.5 ± 17.1 mm, 59.5% were sessile, 60.4% were in the right colon and in 17.7% (n = 56) the access was difficult. Of the lesions, 83.6% were Size/Morphology/Site/Access 3–4. Residual/recurrent adenoma at first and second follow-up was significantly lower in Size/Morphology/Site/Access 2 (1.9% and 0.0%, respectively) when compared to...
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