成年人呼吸紧迫综合症(ARDS)是脓毒血症的常见并发症。ARDS以肺动脉高压和肺血管通透性增加为其特征,但与白细胞和血小板在肺内积聚和花生四稀酸代谢产物,特别是血栓素A_2(TxA_2)的产生等很多因素亦被认为有关。本文作者用未经麻醉而带有慢性肺淋巴瘘的绵羊作试验,注射大肠杆菌内毒素后测定血中白细胞、 Respiratory Stress Syndrome (ARDS) in adults is a common complication of sepsis. ARDS is characterized by an increase in pulmonary hypertension and pulmonary vascular permeability, but is also associated with many factors such as the accumulation of leukocytes and platelets in the lungs and the production of arachidonic acid metabolites, especially thromboxane A 2 (TxA 2). The authors used non-anesthetized sheep with chronic pulmonary lymphatic fistula as a test, after the injection of E. coli endotoxin was measured in the blood leukocytes,