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本文通过１１６例留置导尿病人３４８份标本细菌培养，结果表明主要致病菌是内源性肠道菌群，肺炎克雷伯杆菌和醋酸钙不动杆菌检出增多，应予以重视；感染主要途径是导尿管腔外途径；主要环节是细菌在尿道口的污染和定植。通过实验室杀菌试验观察到，常用外阴消毒剂对检出主要致病菌有良好的杀菌效果，但不能有效保护尿道口
This article through the 116 cases of catheterization in 348 specimens of bacteria culture, the results show that the main pathogenic bacteria are endogenous intestinal flora, Klebsiella pneumoniae and Acinetobacter increased detection should be paid attention; the main infection Pathway is the catheter extracavitary approach; the main part of the bacteria in the urethra contamination and colonization. Through the laboratory sterilization test observed, common vulva disinfectant on the detection of major pathogens have a good bactericidal effect, but can not effectively protect the urethra