胃肠道出血患者构成肝硬化高危感染组群之一。口服非吸收性抗生素预防感染是有效的,但有潜在致病性耐药菌过度生长以及副作用和费用增加等缺点。本研究旨在评估肝硬化伴胃肠道出血病人服用氟哌酸选择性清除肠道菌(SID)预防感染的效果。病人与方法:1989年8月～1991年6月凡因胃肠道出血住院的肝硬化病人均列为研究对象。剔除住院 Patients with gastrointestinal bleeding constitute one of the high risk groups of cirrhosis. Oral administration of nonabsorbable antibiotics is effective in preventing infections, but there are disadvantages such as over-growth of potentially pathogenic resistant bacteria and side effects and costs. The purpose of this study was to evaluate the efficacy of norfloxacin-selective clearance of enteric bacteria (SID) in patients with cirrhosis and gastrointestinal bleeding for prevention of infection. Patients and methods: From August 1989 to June 1991, all patients with cirrhosis who were hospitalized for gastrointestinal bleeding were enrolled. Remove hospitalization