机械通气是救治呼吸衰竭的重要方法 ,但在临床使用中患者的呼吸道分泌物难以消除 ,影响呼衰和抗感染的治疗效果。支气管肺灌洗可有效地清除支气管分泌物 ,减轻气道炎症。我们对 11例重症呼衰患者在机械通气下行支气管肺灌洗局部治疗 ,取得满意的疗效 ,报告如下。1　资料与方法1 Mechanical ventilation is an important method of treatment of respiratory failure, but in clinical use of patients with respiratory secretions is difficult to eliminate, affecting respiratory failure and anti-infection treatment. Bronchoalveolar lavage can effectively remove bronchial secretions, reduce airway inflammation. We 11 cases of patients with severe respiratory failure in mechanical ventilation down the local treatment of bronchial lavage, and achieved satisfactory results, the report is as follows. 1 Materials and Methods 1