败血症常併发成人呼吸困难综合征(ARDS)。在动物和人中均已证明了败血症使血管中液体渗入肺泡的能力增高。并证明了败血症时血浆中的 C_5活性由于 ARDS 之发生而增强。然而,有关败血症性ARDS 的发病率,危险因素及预后尚未阐明。本文意在认识:(1)败血症病人 ARDS 的发病率; Sepsis often complicated by adult respiratory distress syndrome (ARDS). Sepsis has been demonstrated in both animals and humans to increase the ability of fluids in the blood vessels to penetrate alveoli. And demonstrated that plasma C 5 activity in sepsis is enhanced by the occurrence of ARDS. However, the incidence, risk factors and prognosis of septic ARDS have not been elucidated. This article is intended to: (1) the incidence of ARDS in sepsis patients;