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）；

There was no significant difference in HR, DBP, CVP and PAWP before and after extubation (P>0.05).

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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）；

There was no significant difference in HR, DBP, CVP and PAWP before and after extubation (P>0.05).

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