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为确定使用肝素和尿激酶作激发剂引发出血以明确慢性胃肠道(GI)出血来源的安全性和诊断准确性,作者自1991年9月～1996年5月前瞻性地研究了一些不明原因的危及生命的复发性GI出血患者。研究对象的标准如下:①因GI出血两次或多次住院者。②能耐受动脉血管造影及手术者。③大便隐血试验阳性者。④最近一次非激发性放射性核素试验
In order to determine the safety and diagnostic accuracy of using heparin and urokinase as stimulants for initiating haemorrhaging of chronic gastrointestinal (GI) hemorrhage, the authors prospectively studied some unexplained causes from September 1991 to May 1996 Of life-threatening recurrent GI bleeding patients. The criteria for the study were as follows: ① Two or more hospitalizations due to GI bleeding. ② can tolerate angiography and surgery. ③ stool occult blood test positive. ④ the latest non-excitation radionuclide test