ARDSARDS与肺复张与肺复张与肺复张与肺复张内容提纲内容提纲vARDS的诊断vARDS的病理及病理生理vARDS机械通气原则v肺复张方法v肺复张疗效评估v肺复张的影响因素v肺复张后PEEP的选择欧美诊断标准欧美诊断标准(Am J Respir Crit Care Med 1994)Diagnostic Criteria for Acute Lung Injury(ALI)and ARDS Onset Oxygenation*Chest Radiograph PAOPALI Acute PaO2/FiO2300 Bilateral interstitial 18mmHg if measured or mmHg or alveolar infiltrates no clinical evidence of left atrial hypertension ARDS Acute PaO2/FiO2200 Bilateral interstitial 18mmHg if measured or mmHg or alveolar infiltrates no clinical evidenc