| Clinical Survery of Intracuff Preseure Changes during General Inhalation Anesthesia. |
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Hae Keum Kil, Young Joo Lee, Chung Hyun Cho |
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Department of Anesthesiology, Yonsei University College of Medicine, Seoul, Korea. |
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| Abstract |
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A number of reports have documented that air-filled cavities in the body will expand if the gas within the space is less soluble in blood than the gas respired. Since an air inflated endotracheal tube cuff within the trachea represents an air-filled body cavity the intracuff gas volume and pressure may be altered during general Inhalation anesthesia. This study was conducted to determine the degree of intracuff pressure and volume changes during general anesthesia. The results were as follows; 1) Twenty three patients, ranging in age from 17 to 73 years, in ASA physical status class 1.ll were reviewed. There were 9 male and 14 females with 19 cases from the general surgical department and 4 from the gynecological department. 2) The duration. of annesthesia ranged was from 120 to 205.7m minutes. 3) Significant intracuff pressure changes develeped in Groups IA and IB (p <7.75), and a significant difference was noted between group 1 and 2. 4) Intracuff gas volume was increased in Groups IA (50% 02, 50% N27) and 1B (33.3% 02, 66.7%N20) with a p value<7.05, but a singificiant time sequential intracuff pressure difference was not observed between the two groups. |
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