停机4小时作为呼吸机撤离指标的临床应用

Clinical application of four-hour weaning as index of ventilator independence

目的探讨停机4小时作为呼吸机撤离指标应用的可行性。方法对29例慢性阻塞性肺病并发呼吸衰竭应用机械通气治疗者进行两种不同微机方式的比较研究。结果耐受每日1次停机4小时者皆可停机24小时，并成功撤离呼吸机及气管插管的拨管，较常规间歇撤机方式撤机时间缩短1．5天。结论耐受停机4小时可作为停用呼吸机及气管插管的拨管指证。

objective: In order to study the clinical application of four-time weaning as index of ventilator independence. Methods 15 patients with chronic obstructive pulmonary disease complicated with respiratory failure in comparation with 14 patients with conventional intermittent weaning. Results Patients who tolerated four-hour weaning be fore turning off the ventilator for 24 hours,and were successfully withdrawn from the ventilator and extubated there after,the weaning period of whom was shortened by 1. 5 days as compared with those on conventional weaning. Conclusion Four-hour weaning could be used as the index of ventilator independence and tracheal extubation.