有研究显示:呼气末正压(PEEP)复合低潮气量(LTV)通气能改善急性呼吸窘迫综合征(ARDS)患者的预后,但该研究的患者例数较少,并且纳入的患者未能排除某些特殊疾病的干扰,所以结论不十分可信。最近,国外学者在西班牙进行了另一项较大样本的多中心临床研究,试验对象包括全西班牙1999 Some studies have shown that PEEP combined with low tidal volume (LTV) ventilation can improve the prognosis of patients with acute respiratory distress syndrome (ARDS), but the number of patients in this study is small, and the inclusion of patients failed to rule out Some special diseases interfere, so the conclusions are not very credible. Recently, a large multicenter clinical study was conducted by foreign scholars in Spain on a larger sample of subjects including all spanish 1999