成人呼吸窘迫综合征(ARDS)是在某些特殊临床背景下发生的急性肺功能障碍。因肺泡-毛细血管动力学改变导致肺静-动脉分流增加,并以渐进性低氧血症为特征。一般与过去疾病无关,往往又发生于原先心肺功能正常的病人。轻度一过性低氧血症经迅速处理可得以纠正,但违拗而难治的低氧血症常可致命。由于病理上严重程度的 Adult respiratory distress syndrome (ARDS) is an acute pulmonary disorder that occurs in some special clinical settings. Pulmonary-pulmonary arterial shunt increases due to alveolar-capillary dynamics and is characterized by progressive hypoxemia. Generally unrelated to the past disease, often occurs in the original heart and lung function of patients. Mild transient hypoxemia can be corrected by prompt treatment, but obstructive and refractory hypoxemia can often be fatal. Due to the pathological severity