There was no significant difference in HR, DBP, CVP and PAWP before and after extubation (P>0.05).
拔管前后的心率、舒张压、中心静脉压和肺动脉嵌压均无显著差异（P>0.05）；
The cardiac output, pulmonary vascular resistance and PAWP were more sensitive to changes of pulmonary function.
对肺功能变化较敏感的血流动力学指标是心输出量、肺血管阻力、肺小动脉嵌顿压。
The cardiac output, pulmonary vascular resistance and PAWP were more sensitive to changes of pulmonary function.
对肺功能变化较敏感的血流动力学指标是心输出量、肺血管阻力、肺小动脉嵌顿压。
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