急性呼吸窘迫综合征 (ARDS)是多种病因或疾病引起的肺泡上皮和内皮屏障破坏的急性炎性反应 ,肺泡内含蛋白丰富的渗出液增加而导致的急性呼吸衰竭 ,表现为非心源性肺水肿和顽固性低氧血症 ,是炎症反应综合征在肺部的表现。其病理表现为肺泡塌陷、肺顺应性下降、肺内分流增加和低 Acute Respiratory Distress Syndrome (ARDS) is an acute inflammatory response to destruction of the alveolar epithelium and endothelial barrier caused by a variety of etiologies or diseases, acute respiratory failure due to increased protein-rich exudate in the alveoli, manifested as non-cardiac Pulmonary edema and refractory hypoxemia, the performance of the inflammatory response syndrome in the lungs. The pathological findings of alveolar collapse, decreased lung compliance, pulmonary shunt increased and low