机械通气是ICU常用的一种治疗措施,呼吸机相关性肺炎(VAP)是机械通气治疗中常见而严重的并发症。目前对VAP的临床研究中,口腔定植菌和气囊滞留物被认为是引起VAP发生的重要原因[1-3]。为了减少VAP的发生,本院ICU采用声门下吸引结合口腔冲洗的方法进行机械通气患者的口咽部护理, Mechanical ventilation is a commonly used treatment in the ICU. Ventilator-associated pneumonia (VAP) is a common and serious complication of mechanical ventilation. At present, clinical studies of VAP, oral colonization and air bag retentions are considered to be an important cause of VAP [1-3]. In order to reduce the incidence of VAP, ICU of our hospital uses the method of subglottic suction combined with oral irrigation for oral oropharyngeal care of patients with mechanical ventilation,