| Intracuff Pressure Change during Inhalation Anesthesia . |
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Young Moon Han, Se Ung Chon |
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Department of Anesthesiology, Catholic Medical College, Seoul, Korea. |
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| Abstract |
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The effect of nitrous oxide on endotracheal tube cuff pressure was measured during N2O-O2-halothane anesthesia.
Intracuff pressure was increased in a time-related fashion up to 150 minutes. Thereafter no significant increase was observed, The other hand, there is no endotracheal tube cuff pressure change during O2-halothane anesthesia. These findings demonstrate that nitrous oxide has the capacity to diffuse into Portex endotracheal tube cuffs in significant volumes and may result in increased intracuff pressure, and in O2-halothane anesthesia, the nitrogea in the cuff was diffused out from the cuffs. |
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