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Diagnostic value of novel retroflexion colonoscopy in the right colon: A randomized controlled trial

World Journal of Gastrointestinal Oncology 2020年第11期12卷 1336-1345页

作者： Wen-Kun Li Yun Wang Ya-Dan Wang Kui-Liang Liu Chun-Mei Guo Hui Su Hong Liu Jing Wu Department of Gastroenterology Beijing Shijitan HospitalCapital Medical UniversityBeijing 100038China National Clinical Research Center for Digestive Diseases Beijing 100050China Department of Gastroenterology Peking University Ninth School of Clinical MedicineBeijing 100038China Department of Gastroenterology Beijing Friendship HospitalCapital Medical UniversityNational Clinical Research Center for Digestive DiseasesBeijing 100050China

BACKGROUND colonoscopy is the accepted gold standard for the detection of colorectal cancer. However, colonoscopy is less effective in preventing colon cancer in the right side compared with the left *** To investigate the feasibility of a novel type of retroflexion colonoscope, EC-3490 Ti colonoscope, for detection of proximal colon *** In this prospective trial, we recruited patients who underwent colonoscopy for screening or surveillance. When the endoscopists could not grasp the whole observation of the right-side colon mucosa in the forward view(FV), insertion and withdrawal were repeatedly performed in the FV group with the EC38-i10 F colonoscope while retroflexion was performed in the retroflexed view(RV) group with the EC-3490 Ti colonoscope. Adenoma detection rate, the total number of adenomas per positive participant, the success rate of retroflexion, and endoscope withdrawal time were recorded and *** The total adenoma detection rate(39.3% vs 37.7%, P = 0.646) did not show any significant difference between the two groups. However, the polyp detection rate(59.6% vs 51.0%, P = 0.002), adenoma detection rate in the right colon(21.6% vs 14.4%, P = 0.012), and the total number of adenomas per positive participant(2.1 vs 1.7, P = 0.011) reached statistical significance. Retroflexion was achieved in 91.7% of our cohort. Compared with the FV group, the withdrawal time was significantly prolonged in the RV group(586.1 ± 124.4 s vs 508.8 ± 129.6 s, P colon could be performed successfully and safely with the EC-3490 Ti colonoscope. This maneuver could detect more adenomas effectively.

关键词： Colorectal adenoma Retroflexion right colon Adenoma detection rate Cancer

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right colon and liver hemangiomatosis:A case report and a review of the literature

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World Journal of Gastroenterology 2006年第39期12卷 6405-6407页

作者： Athanasios Marinis Evi Kairi Theodosios Theodosopoulos Agathi Kondi-Pafiti Vassilios Smyrniotis 2nd Department of Surgery Areteion University Hospital 76 Vasilisis Sofias av. Athens 11528 Greece Department of Pathology Areteion University Hospital 76 Vasilisis Sofias av. Athens 11528 Greece

Cavernous hemangiomatosis of the colon and liver in a 38-year-old woman presenting with a history of cramp like abdominal pain and a mass in the right iliac fossa are presented. Abdominal ultrasonography and computed tomography demonstrated multiple liver hemangiomas as well as a noncystic lesion in the right iliac fossa. Operative findings were suggestive of diffuse hemangiomatosis of the right colon and an extensive right hemicolectomy was performed. A review of the literature is presented, considering current diagnostic and therapeutic methods.

关键词： Hemangiomatosis right colon Liver

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