WORK OF BREATHING AFTER EXTUBATION
WORK OF BREATHING AFTER EXTUBATION
复制标题
DOI：
10.1378/chest.107.1.204
复制
发表时间：
1995-01-01
期刊：
影响因子：
9.6
通讯作者：
BELMAN, MJ
中科院分区：
文献类型：
--
作者：
ISHAAYA, AM;NATHAN, SD;BELMAN, MJ
最近，我们发现拔管后即刻的呼吸功高于通过气管内插管的自然呼吸。在这项研究中，我们评估了声门和气管作为拔管后呼吸道阻力增加的潜在部位。我们测量了8名患者脱机期间的呼吸模式、呼吸功和压力时间乘积。我们采集了通过呼吸机进行压力支持通气和自主呼吸、气管插管到位和拔管后的数据。在拔管时的支气管镜检查中，我们检查了气管并测量了声门横截面积。压力支持下呼吸功和压力时间乘积显著低于拔管后自主呼吸(分别为0.43±0.10vs1.49±0.10J/min和101+/-22vs299+/-30cmH2O·s/min；p
Recently we showed that work of breathing was higher in the immediate period after extubation as compared with spontaneous breathing through an endotracheal tube. In this study, we evaluated the glottis and trachea as potential sites of increased airway resistance after extubation. We measured breathing pattern, work of breathing, and pressure time product in eight patients during weaning from mechanical ventilation. We acquired data during pressure support ventilation and spontaneous breathing via the ventilator, with the endotracheal tube in place, and after extubation. During bronchoscopy at the time of extubation, we examined the trachea and measured the cross-sectional area of the glottis. Work of breathing and pressure time product were significantly lower during pressure support ventilation as compared with spontaneous breathing after extubation (0.43 +/- 0.10 vs 1.49 +/- 0.10 J/L and 101 +/- 22 vs 299 +/- 30 cm H2O.s/min, respectively; p