【摘要】 目的 调查了解老年人下消化道出血的临床特点，为临床防治提供帮助。方法 对102例老年人下消化道出血患者的临床资料进行回顾性分析，并与同期的非老年人患者进行比较。结果 102例老年人下消化道出血患者中，最常见的疾病为大肠癌47例，占46.1%，大肠息肉26例，占25.5%，慢性结肠炎19例，占18.6%，结肠憩室5例，占4.9%，溃疡性结肠炎3例，占2.9%，血管畸形2例，占2.0%。非老年人患者中，常见疾病为大肠癌6例，占5.9%，大肠息肉46例，占45.1%，慢性结肠炎36例，占35.3%，溃疡性结肠炎13例，占12.7%，克罗恩病1例，占1.0%，大肠癌在老年人下消化道出血中最为常见，明显高于非老年人(P<0.01)，病变多位于直肠和乙状结肠。结肠憩室和血管畸形在老年人中也较多见。结论 老年人下消化道出血病因中以大肠癌为最多见，结肠憩室和血管畸形在老年患者中也较多见，肛门指诊检查和乙状结肠镜检查对老年人下消化道出血的诊断有重要价值，结合肠道气钡双重X线检查和纤维结肠镜检查，可进一步提高诊断率。

    【关键词】 下消化道出血； 病因； 老年人

    Analysis of the clinical features of lower gastrointestinal bleeding in the elderly

    LU Ming.

    Dept of Geriatrics,Zhongshan Hospital,Fudan University,Shanghai 200032,China

    【Abstract】 Objective To investigate the clinical features of lower gastrointestinal bleeding(LGB) in the elderly and provide information for treatment. Methods Data of 102 elderly patients with LGB were retrospectively analyzed and compared with those of non-elderly patients. Results 47 out of 102 patients suffered from colon cancer (46.1%) which was the commonest reason for LGB in the elderly, followed in turn by colon polyp (25.5%), chronic colonitis(18.6%), colonic diverticulum(4.9%), ulcerative colonitis(2.9%), and vascular deformity(2.0%). While in the non-elderly patients, there were 6 cases of colon caner (5.9%) ......