肺炎合并急性呼吸窘迫综合征 (acuterespiratorydistresssyndrome ,ARDS)是肺炎致死的重要原因。近年来研究证实 :以肺为主的微循环障碍是感染合并ARDS 多器官功能障碍综合征 (multipleorgansdysfunc tionsyndrome ,MODS)的主要病理环节之一〔1〕 ,肺或其他脏器微循环障碍通过 Pneumonia complicated with acute respiratory distress syndrome (ARDS) is an important cause of pneumonia. In recent years, studies have confirmed that: pulmonary-based microcirculation is one of the main pathological stages of infection complicated with multiple organ dysfunction syndrome (MODS) [1], pulmonary or other organ microcirculation passed