机械通气患者呼吸机管路的病原学分析及护理干预

Pathogens Isolated from Breathing Circuit in Mechanical Ventilation Patients: Analysis and Nursing Intervention

目的研究机械通气患者呼吸机管路、下呼吸道病原菌的分布,为预防及护理其引起的医院感染提供依据。方法对机械通气患者呼吸机管路48株病原菌、下呼吸道87株病原菌进行分析,探讨预防措施。结果呼吸机管路病原菌依次为铜绿假单胞菌(31.2%)、嗜麦芽寡养单胞菌(27.2%),下呼吸道病原菌依次为铜绿假单胞菌(37.9%)、克雷伯菌属(17.3%)和白色念珠菌(13.7%);下呼吸道与呼吸道管路菌株>73.3%相一致。结论为有效预防感染,必须实施有效的消毒措施,要特别重视呼吸机管路的消毒。

OBJECTIVE To investigate the breathing circuit bacteria and the lower respiratory airway bacteria （LRAB） isolated trom mechanical ventilation patient. METHODS A total of 48 strains of the breathing circuit and 87 strains of LRAB from mechanical ventilation patients were analyzed. RESULTS The main organism in the breathing circuit were Pseudomonas aeruginosa （31.2 % ）, and Stenotrophomonas maltophilia （27.2 %）. The main organisms in LRAB were P. aeruginosa （37.9%）, Klebsiella pneumoniae （17.3%） and Candida albicans （13.7%）. The pathogens of the breathing circuit were 73.3 % similar with those of LRAB. CONCLUSIONS To control infection effectively, effective sterilizing measures must be carried out, especially attention to sterilizing and managements of the breathing circuit.