Kluge S, Müller T, Pfeifer M
Klinik für Intensivmedizin, Universitätklinikum Eppendorf, Hamburg.
Dtsch Med Wochenschr. 2011 Feb;136(5):186-9. doi: 10.1055/s-0031-1272506. Epub 2011 Jan 26.
Lung-protective ventilation with a low tidal volume, plateau pressure < 30 cm H(2)O. oxygen saturation > 90% and permissive hypercapnia results in reduction of the mortality rate in patients with acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). The level of the positive end-expiratory pressure (PEEP) must be chosen in relation to oxygen requirement. High frequency oscillatory ventilation and neurally adjusted ventilatory assist are promising methods. However, further studies with firm end-points have to be awaited before a final judgment is possible. Veno-venous extracorporeal membrane oxygenation (ECMO) can ensure life-sustaining gas exchange in patients with severe vitally compromised pulmonary failure, to provide time for lung tissue to heal and reduce ventilatory stress. The latest guidelines for analgesia and sedation in intensive care medicine demand consistent monitoring of the level of sedation and the intensity of pain. The sedation should be interrupted daily, with phases of awakenings and, if possible, spontaneous breathing. Methods of supportive treatment: Positional treatment (prone position) and inhalation of vasodilators can improve ventilation/perfusion mismatch and thus oxygenation. However, administration of surfactant is currently not advised in adult respiratory failure.
采用低潮气量、平台压<30 cm H₂O、氧饱和度>90%以及允许性高碳酸血症的肺保护性通气可降低急性肺损伤(ALI)和急性呼吸窘迫综合征(ARDS)患者的死亡率。呼气末正压(PEEP)水平必须根据氧需求来选择。高频振荡通气和神经调节通气辅助是很有前景的方法。然而,在做出最终判断之前,还需等待有明确终点的进一步研究。静脉-静脉体外膜肺氧合(ECMO)可确保严重危及生命的肺功能衰竭患者进行维持生命的气体交换,为肺组织愈合提供时间并减轻通气压力。重症监护医学中最新的镇痛和镇静指南要求持续监测镇静水平和疼痛强度。镇静应每日中断,包括唤醒阶段,如有可能,实现自主呼吸。支持治疗方法:体位治疗(俯卧位)和吸入血管扩张剂可改善通气/血流不匹配,从而改善氧合。然而,目前不建议在成人呼吸衰竭中使用表面活性剂。