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不明原因消化道出血(obscure gastrointestinalbleeding,OGIB)是指经过胃镜和结肠镜检查后病因仍未明确的,持续或反复发作的消化道出血。它包括两部分病变:一部分是胃镜和结肠镜检查过程中遗漏的病变;另一部分是胃镜和结肠镜不能到达部位的病变,即十二指肠乳头附近至回肠末端的
Unconsciousness Gastrointestinal bleeding (obscure gastrointestinal bleeding, OGIB) refers to the cause of the gastroscope and colonoscopy is still not clear, continuous or recurrent gastrointestinal bleeding. It includes two parts of the lesion: one part is omission of lesions during gastroscopy and colonoscopy; the other part is the lesion of endoscopy and colonoscopy can not reach the site, near the end of the duodenal papilla to the terminal ileum