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Anaesth Intensive Care · Oct 2001
Randomized Controlled Trial Clinical TrialChange in endotracheal tube cuff pressure during nitrous oxide anaesthesia: a comparison between air and distilled water cuff inflation.
- N L Ahmad and A M Norsidah.
- Department of Anaesthesiology and Intensive Care, University Kebangsaan Malaysia, Kuala Lumpur.
- Anaesth Intensive Care. 2001 Oct 1;29(5):510-4.
AbstractIn this prospective, randomized controlled trial, changes in endotracheal tube cuff pressure were studied in 60 patients undergoing elective surgery under general anaesthesia with nitrous oxide and oxygen. The cuffs were inflated with either air or distilled water. The mean pressure in the air-filled cuffs increased steadily throughout the procedure, reaching 47.5 +/- 7.3 cmH2O at one hour compared with 31.6 +/- 2.4 cmH2O mean pressure in the water-filled cuffs. The pressure and the rate of rise in cuff pressure were significantly lower (P<0.05) in the water-filled cuffs throughout the hour of study. When an endotracheal tube cuff is distended with water, the rise in cuff pressure during nitrous oxide anaesthesia is lower than that of an air-filled cuff.
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