在急性下胃肠道出血的大多数病例中内窥镜、放射核素扫描、闪烁图和血管造影可有效地指导外科治疗。然而出血部位的显示目前仍是一个问题。尤其是间歇性出血。作者报告1例下胃肠道出血,女性,58岁。黑便两周,内窥镜,胃肠道钡造影和血管造影均无殊见。核素扫描提示有下象限出血,逐行右半结肠及末段回肠切除术。3个月后再次发生中度的黑粪,使用要拉苏林与肝素也无发现反应性出血。逐使用尿激酶注入肠系膜上动脉,以诱发反应性出血。以30000μ/min的速度注入1000000μ,然后给25mg妥拉苏林,血管造影发现回肠扩张的血管有少量造影剂外溢。作者首次报告了使用尿 In most cases of acute lower gastrointestinal bleeding, endoscopy, radionuclide scanning, scintigraphy, and angiography can effectively guide surgical treatment. However, the display of bleeding sites is still a problem. Especially intermittent bleeding. The author reported 1 case of gastrointestinal bleeding, female, 58 years old. During the two weeks of black stool, there were no differences in endoscopy, gastrointestinal angiography, and angiography. Radionuclide scan revealed lower quadrant hemorrhage, progressive right colon and end ileum resection. Moderate black feces occurred again after 3 months, and no reactive hemorrhage was found with lasurulin and heparin. Urokinase was injected into the superior mesenteric artery one by one to induce reactive hemorrhage. At a rate of 30000 μ/min, 1,000,000 μm was injected, and 25 mg of tolasurin was given. Angiogram revealed a small amount of contrast agent spillage in the ileal dilated blood vessels. The author first reported using urine