胶囊内镜在老年人不明原因的消化道出血诊断中的应用

目的探讨M2A胶囊内镜对老年人不明原因的消化道出血的诊断作用。方法对27例不明原因消化道出血的老年患者进行M2A胶囊内镜检查，其中22例经过电子胃镜、结肠镜或小肠气钡双重造影检查，均未明确出血部位；另5例未做过任何检查。结果27例患者中，经M2A胶囊内镜检查发现出血病变20例，检出率为74．1％。检出病变主要为空肠血管发育不良6例，小肠多发息肉4例（其中1例为罕见的Cronkhite-Canada综合征），小肠占位性病变4例，小肠黏膜溃疡7例，小肠黏膜糜烂9例，小肠憩室1例，胃内小动脉出血2例，胃内黏膜糜烂、溃疡5例。有12例患者同时伴有2处或以上的病变。结论M2A胶囊内镜对不明原因的消化道出血部位有较高的检出率，是一种非侵人性的检查方法，尤其适用于老年患者。

The utility of capsule endoscopy in the diagnosis of obscure gastrointestinal bleeding of the elderly

Objective To evaluate the effectiveness of M2A capsule endoscopy in the diagnosis of obscure gastrointestinal bleeding of elder patients. Methods Capsule endoscopy was used in 27 elderly patients, who were suspected of small bowel bleeding because of obscure gastrointestinal bleeding. About 20 of the 27 patients underwent gastroscopy, colonoscopy or air-baricum double contrast examination, but none of the examinations confirmed the bleeding sites, whereas the other 5 patients didn't receive any examination because of their intolerance. Results M2A capsule endoscopy disclosed the sites of small bowel disorders in 20 out of the 27 patients, the positive rate was about 74. 1%. The pathological findings consisted of angiodysplasia in 6 cases, mutipolypi in the intestine in 4, and 1 of them was diagnosed rare Cronkhite-Canada syndrome, prominency in the intestine in 4, single or multiple ulcers in the intestine in 7, diffuse mucosa lesion in the intestine in 9 and diverticulum in 1, arteriolar bleeding in gastric in 2, gastric mucosa erosion or ulcer in 5, whereas 7 patients were in negative findings. There were 12 patients in whom appeared at least 2 sites of pathological changes. Conclusions This study demonstrates that capsule endoscopy provides an excellent visualization way for the small intestines, especially when the elder patients suffers obscure gastrointestinal bleeding. It is safe and usefull for evaluating the suspected small bowel bleeding.