对慢性阻塞性肺疾病所致呼吸衰竭患者36例,在撤除呼吸机的过程中,采用压力支持通气这一新的通气模式,并对压力支持通气引起的呼吸、循环系统变化进行了观察。结果发现,压力支持通气确有助于疲乏呼吸肌的恢复、增加潮气量、降低呼吸频率和耗氧量。对循环系统则无明显不良影响。所以,压力支持通气在撤除呼吸机的过程中不失为一种好的过渡性通气模式。 Thirty-six patients with respiratory failure caused by chronic obstructive pulmonary disease (COPD) were enrolled in this study. The ventilatory supportive ventilation mode was adopted during the removal of ventilator and the changes of respiration and circulatory system caused by pressure-supporting ventilation were observed. The results showed that pressure support ventilation indeed contribute to the recovery of tired respiratory muscles, increase tidal volume, reduce respiratory rate and oxygen consumption. No significant adverse effects on the circulatory system. Therefore, pressure support ventilation in the removal of the ventilator in the process may well be a good transitional ventilation mode.