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作者:刘学松
一、ARDS与RVD概述
二、RVD的病理生理
重症肺炎ARDS患者通常需要机械通气治疗。肺血管阻力在功能残气量(FRC)时最低,肺容积过大或过小对肺血管都是不利的。FRC是指PEEP为零的情况下的功能残气量,在这种情况下通气后,对肺血管也会产生很大的影响,例如我们施加一定的PEEP,也会使肺血管阻力增加。另外,驱动压过高也会导致右心负荷增加。2015年的一项研究发现驱动压与生存率的关系更为密切,每增加1个SD的驱动压,就会伴随死亡率的增加。RVD在重度脓毒症患者中普遍存在,且与内皮功能障碍的标志物直接相关,高ET-1水平与右心功能呈负相关。
三、RVD的诊断与监测
四、RVD的治疗
五、小结
参考文献
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