PULMONARY MECHANICS DURING GENERAL-ANESTHESIA - INFLUENCE OF MECHANICAL IRRITATION ON THE AIRWAY

被引:23
作者
DOHI, S [1 ]
GOLD, MI [1 ]
机构
[1] UNIV MIAMI, SCH MED, DEPT ANESTHESIO, MIAMI, FL 33101 USA
关键词
D O I
10.1093/bja/51.3.205
中图分类号
R614 [麻醉学];
学科分类号
100217 ;
摘要
The changes in pulmonary resistance (RL) and compliance (CL) following airway irritation and surgical stimulation were investigated in 19 anesthetized, paralyzed patients. Thirteen were normal while 6 had objective evidence of chronic obstructive pulmonary disease (COPD). Broncho-carinal irritation with a suction catheter produced a 27% increase in RL (0.58 .+-. 0.32 kPa [Pascal] l-1 s to 0.74 .+-. 0.40, P < 0.01) and a 10% decrease in CL (0.87 .+-. 0.19 l kPa-1 to 0.81 .+-. 0.22, P < 0.01). These changes were associated with a significant increase in systolic arterial pressure and heart rate during clinical stages of anesthesia (end-tidal enflurane, 1.3 .+-. 0.4%, PaCO2 [arterial CO2 tension] 5.20 .+-. 0.53 kPa). These changes did not correlate with depth of anesthesia but all returned to the pre-irritation value within 5 min. There was no difference in subjects considered normal and those with COPD. Surgical stimulation did not produce significant changes in pulmonary mechanics; repeated broncho-carinal irritation during surgery was associated with a transient increase in RL (P < 0.01).
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页码:205 / 214
页数:10
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