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Analysis of 234 cases of colorectal polyps treated by endoscopic mucosal resection

World Journal of Clinical Cases 2020年第21期8卷 5180-5187页

作者： Lu Yu Na Li Xiao-Mei Zhang Tao Wang Wei Chen Department of Gastroenterology Maanshan Central HospitalMaanshan 243000Anhui ProvinceChina Department of Gastroenterology Affiliated Hospital of Southeast UniversityNanjing 210009Jiangsu ProvinceChina

BACKGROUND Colorectal polyps refer to all neoplasms that protrude into the intestinal cavity.Researchers believe that 50%-70%of colorectal cancers originate from adenomatous polyps.AIM To investigate the endoscopic morphologic features,pathologic types,and clinical situation;evaluate the efficacy and safety of endoscopic mucosal resection(EMR);and guide clinicians in their daily practice.METHODS Two hundred thirty-four patients who underwent EMR in our hospital from January 1,2018 to December 31,2019 were recruited.Data including sex,age,endoscopic morphology of the polyps,and pathological characteristics were analyzed among groups.RESULTS A total of 295 polyps were resected from the 234 subjects enrolled in the study,of which 4(1.36%)were Yamada type I.There were 75(25.42%)type II,101(34.24%)type III,and 115(38.98%)type IV adenomas.Among them,41 were nonadenomas,110 were low-risk adenomas,139 were high-risk adenomas,and 5 were carcinomas.The differences in distribution were not statistically significant,with P values greater than 0.05.The risk of cancer significantly increased for polyps≥1 cm in diameter(c2=199.825,P=0.00).Regarding the endoscopic morphological features,congestion,erosion,and lobulation were more common on the surface morphology of high-risk adenomas and cancerous polyps(c2=75.257,P=0.00),and most of them were Yamada types III and IV.In all,6 of the 295 polyps could not be removed completely,with a one-time resection rate of 97.97%.There were two cases of postoperative bleeding and no cases of perforation,with an overall complication rate of 0.09%.CONCLUSION Colorectal polyps ranging from non-adenomatous polyps,low-risk adenomas,and high-risk adenomas to adenocarcinomas each has their own endoscopic features,while EMR,as a mature intervention,has good safety and operability and should be promoted clinically,especially at the primary care level.

关键词： Colorectal polyp Endoscopic mucosal resection high-risk adenoma risk factors Adenocarcinomas 1,4-bis(diphenylphosphino)butane

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