TY - JOUR T1 -成人呼吸窘迫综合征的计算机断层扫描:它教会了我们什么?摩根富林明-欧洲呼吸杂志》乔欧元和J SP - 1055 LP - 1062 - 10.1183 / 09031936.96.09051055六世- 9 - 5 AU -佩洛西,P盟——Crotti年代盟——Brazzi L盟——Gattinoni L Y1 - 1996/05/01 UR - //www.qdcxjkg.com/content/9/5/1055.abstract N2 -计算机断层扫描(CT)发挥了重要作用在改善我们的知识的病理生理学成人呼吸窘迫综合征(ARDS),以及确定该综合征治疗管理中常用的不同动作的形态和功能关系(改变体位,应用呼气末正压(PEEP)和机械通气)。在疾病早期,ARDS肺的特征是血管通透性的同质性改变。因此,水肿均匀地聚集在所有肺区域,呈非重力分布(均质肺)。由于水肿加重,肺重量增加,通过流体静力的传递(压迫性肺不张),导致沿垂直轴的肺区域塌陷。因此,病变主要出现在肺依赖区(肺不均匀)。吸气期间,在平台压下,肺单位重新打开,如果所施加的呼气末正压足够,则在接下来的呼气期间肺单位保持打开。适当的PEEP等于或高于压缩该单位的流体静力。俯卧位是另一种动作,它允许先前塌陷的肺区域重新打开,相反,压缩先前通气的区域,扭转重力的分布。 During late ARDS, there is less compression atelectasis and the lung undergoes structural changes, due to the reduced amount of oedema. This is usually associated with CO2 retention and the development of emphysema-like lesions. In conclusion, computed tomography is not only a research tool, but a useful technique which allows a better understanding of the progressive change in strategy needed to ventilate the adult respiratory distress syndrome lung at different stages of the disease. ER -