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机械通气相关性肺炎 (ＶＡＰ)是因病原微生物污染机械通气治疗造成的医院获得性感染。是指原无肺部感染的呼吸衰竭患者 ,在气管插管机械通气治疗后 48小时或原有肺部感染应用机械通气治疗 48ｈ以上发生新的病情变化、临床高度提示为新的感染、且经病原学证实或拔管后 48ｈ内发
Mechanical ventilation-associated pneumonia (VAP) is a hospital-acquired infection caused by pathogenic microorganism-contaminated mechanical ventilation. Refers to the original non-pulmonary infection in patients with respiratory failure, mechanical ventilation in tracheal intubation 48 hours after the original lung infection or mechanical ventilation for more than 48h treatment of new changes in condition, the clinical highly suggestive of a new infection, and by Etiology confirmed or within 48h after extubation