机械通气是，呼吸衰竭治疗的最后手段，处理得当，可起到其他治疗方法难干代替的作用。但呼吸机应用中也可带来一系列共发症和不利影响。同此，呼吸机撤机时机的掌握手关重要。我们对10例急性呼吸衰竭机械通气者肺内分流进行动态观察，并拢撒机时机进行探讨。资料与方法1一般资 Mechanical ventilation is the last resort in the treatment of respiratory failure and is well managed to play a role as an alternative to other treatments. However, ventilator applications can also bring about a series of complications and adverse effects. In the same vein, the timing of ventilator weaning is important. We conducted a dynamic observation of the pulmonary shunt in 10 patients with mechanical ventilation of acute respiratory failure and discussed the timing of sprinkling. Materials and Methods 1 General Information