急性呼吸窘迫综合征(acute respiratory distress syn-drome,ARDS),多发生于原心肺功能正常的患者,是由于心源性以外的各种肺内、肺外致病因素引起的以肺泡-毛细血管炎症损伤为主的急性Ⅰ型呼吸衰竭,为临床上常见的危重症之一。采用常规吸氧疗法难以纠正患者缺氧症状,即使采用? Acute respiratory distress syndrome (acute respiratory distress syndrome, ARDS), occurred in patients with normal primary heart and lung function is due to a variety of cardiogenic pulmonary factors outside the lung caused by alveolar-capillary Inflammatory injury-based acute respiratory failure, one of the most common clinical critically ill. Using conventional oxygen therapy is difficult to correct the symptoms of hypoxia in patients, even if used?