Methods The blood gas, occurrence index of traumatic ARDS, pathogenic bacteria and drug sensitivity in ventilator associated pneumonia ( VAP) were analyzed retrospectively in 18 cases of thoracic injury. 方法对18例患者的血气及创伤性ARDS发生指数进行回顾分析,对呼吸机相关肺炎(VAP)进行病原菌及药敏分析。