Voigt E
Anasth Intensivther Notfallmed. 1983 Oct;18(5):239-42.
Atelectasis in the postsurgical patient or patients on artificial ventilation problems is a frequently occurring complication. Bronchoscopy, local secretion removal by suction, lavage and vigorous positive pressure ventilation in many cases fail to re-expand the collapsed lung. Intubation after bronchoscopy by a double lumen tube permits systematic overinflation of the collapsed lung whereas the other lung is open to atmospheric pressure. In this manner the opening pressure of the collapsed lung can be overcome without overdistension of the other lung. The result is a marked improvement of oxygenation by reducing the venous admixture in lung.
外科手术后患者或使用人工通气的患者发生肺不张是一种常见并发症。在许多情况下，支气管镜检查、通过吸引清除局部分泌物、灌洗以及强力正压通气都无法使萎陷的肺复张。支气管镜检查后插入双腔管可使萎陷的肺系统地过度充气，而另一侧肺则与大气压相通。通过这种方式，可以克服萎陷肺的开放压力，而不会使另一侧肺过度扩张。结果是通过减少肺内静脉血掺杂，氧合得到显著改善。
