Effect of referral pattern and histopathology grade on surgery for nonmalignant colorectal polyps

Post written by Dennis Yang, MD, from the Division of Gastroenterology and Hepatology, University of Florida, Gainesville, Florida, USA. The incidence of surgery for nonmalignant colorectal polyps has continued to rise. We aimed to evaluate referral patterns and factors associated with surgery for nonmalignant colorectal polyps at a large tertiary care center. Endoscopic resection should …

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Impact of submucosal saline solution injection for cold snare polypectomy of small colorectal polyps

Post written by Yuichi Shimodate, MD, from the Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, Okayama, Japan. We compared the complete resection, which was defined if muscularis mucosa in the resected specimen was present under the tumor along more than 80% of the tumor’s horizontal dimension, rates of cold snare polypectomy with submucosal saline …

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Accuracy of artificial intelligence on histology prediction and detection of colorectal polyps

Post written by Wai K. Leung, MD, from the Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong. This study reviewed and summarized the latest data on the use of artificial intelligence on histology prediction and detection of colorectal polyps. With the rapid development and increasing application of artificial intelligence (AI) in …

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Pathology definitions and resection strategies for early colorectal neoplasia

Post written by Makoto Nishimura, MD, from the Gastroenterology, Hepatology and Nutrition Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA. Well-known discrepancies exist between the East and West classifications of colorectal neoplasia. For example, ‘intra-mucosal carcinoma’ in Japan is recognized as ‘high-grade dysplasia’ in the U.S. To resolve these interobserver discrepancies between …

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A novel clip-band traction device to facilitate colorectal ESD and defect closure

Post written by Hiroyuki Aihara, MD, PhD, from the Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women’s Hospital, Boston, Massachusetts, USA. Adequate visualization of the submucosal dissection plane is critically important for both safety and efficacy in endoscopic submucosal dissection (ESD). Recently, a novel clip-band traction device was introduced to the U.S. market (Elastic …

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Endoscopic clipping closure for preventing coagulation syndrome after colorectal ESD

Post written by Takaya Shimura, MD, PhD, from the Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan. The aim of this RCT (CliPEC study) is to assess the usefulness of endoscopic clipping closure to prevent Post-ESD coagulation syndrome (PECS) and delayed perforation. In …

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Endocytoscopy for the differential diagnosis of colorectal low-grade adenoma

Post written by Toyoki Kudo, MD, PhD, from the Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama, Japan. We aimed to reveal which endocytoscopic findings may be used as indicators of low-grade adenoma and to assess whether a “resect and discard” strategy using endocytoscopy is feasible. A normal pit-like structure in endocytoscopic images was …

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Impact of a real-time automatic quality control system on colorectal polyp and adenoma detection

Post written by Yan-Qing Li, MD, PhD, from the Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, China. We focused on investigating the real clinical impact of an automatic quality control system on colorectal polyp and adenoma detection. Quality control should be conducted for daily colonoscopy examinations routinely. Artificial intelligence showed the potential for …

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Diagnostic performance of Japan NBI Expert Team classification for non-, superficially, and deeply invasive colorectal neoplasia

Post written by Shinji Tanaka, MD, PhD, FASGE, FACG, from the Endoscopy and Medicine, Graduate School of Biomedical & Health Sciences, Hiroshima University. JNET classification is composed of four types (Type 1, 2A, 2B, and 3) with two NBI magnifying findings, surface pattern and vessel pattern. Type 1, 2A, 2B, and 3 are supposed to …

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