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成人呼吸窘迫综合征(ARDS)是引起急性呼吸功能衰竭的常见原因。临床表现为呼吸窘迫、肺顺应性降低、动脉血氧张力(PaO_2)减少、胸片显示弥漫性肺浸润。在诊断时,特别强调要排除因慢性肺部疾病和由左心衰竭而引起的肺部疾患。ARDS的临床分期各种原因,诸如感染、误吸、淹溺、药物过量、胰腺炎、吸入烟雾和其他吸入性气体、休克、创伤、消耗性凝血障碍,以及吸入高浓度O_2等,都可引起ARDS。无论起始病因如何,
Adult respiratory distress syndrome (ARDS) is a common cause of acute respiratory failure. Clinical manifestations of respiratory distress, decreased lung compliance, reduced arterial oxygen tension (PaO_2), chest X-ray showed diffuse pulmonary infiltration. At the time of diagnosis, special emphasis should be given to the exclusion of pulmonary disorders due to chronic lung disease and left heart failure. Clinical Staging of ARDS Various causes, such as infection, aspiration, drowning, overdose, pancreatitis, inhalation of smoke and other inhalational gases, shock, trauma, consumptive coagulopathy, and inhalation of high concentrations of O 2 can cause ARDS. Regardless of the initial etiology,