INTESTINE Vol.18 No.3(4-3)

Theme Can we change to treat for diminutive colorectal polyp ?
Title Review of Resect-and-Discard strategies
Publish Date 2014/05
Author Mineo Iwatate Gastrointestinal Center, Sano Hospital
Author Yasuko Hisano Gastrointestinal Center, Sano Hospital
Author Hidekazu Kosaka Gastrointestinal Center, Sano Hospital
Author Santa Hattori Gastrointestinal Center, Sano Hospital
Author Wataru Sano Gastrointestinal Center, Sano Hospital
Author Noriaki Hasuike Gastrointestinal Center, Sano Hospital
Author Akihiro Ichiyanagi Gastrointestinal Center, Sano Hospital
Author Taro Ikumoto Gastrointestinal Cancer Center, Sano Hospital
Author Masahito Kotaka Gastrointestinal Cancer Center, Sano Hospital
Author Yasushi Sano Gastrointestinal Center, Sano Hospital
Author Takahiro Fujimori Diagnostic Pathology Center, Shinko Hospital
[ Summary ] Because of a shortage of pathologists, a new concept concerning saving formal histopathology for small polyps along with real-time endoscopic diagnosis was developed in western countries. If we diagnose a small polyp as being an adenoma or a hyperplastic polyp with a high confidence, we should resect and discard it as being an adenoma, or not resect it if it is determined to be a hyperplastic polyp. In cases where we can not diagnose the condition of small polyps with a high confidence, we must resect them and submit them for formal pathology as usual. In 2011, the American Society of Gastrointestinal Endosocopy proposed key thresholds to be as follows (>90 % agreement in determining postpolypectomy surveillance intervals and >90 % negative predictive value). Their statement termed Preservation and Incorporation of Valuable Endoscopic Innovations (PIVI) applys to clinical realtime endoscopic assessment of diminutive colorectal polyps.
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