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Middle-ear pressure changes during general N2O Anaesthesia in Adeno-Tonsillectomies due to post-nasal packing

Published online by Cambridge University Press:  29 June 2007

J. Karbonis
Affiliation:
Thessaloniki, Greece
E. Ftakas
Affiliation:
Thessaloniki, Greece
A. Aidonis*
Affiliation:
Thessaloniki, Greece
*
Dr. A. Aidonis, E.N.T. Department, General Central Hospital, Thessaloniki, Greece.

Abstract

During adeno-tonsillectomies performed under general anaesthesia with N2O we observed and measured a serious increase in middle-ear pressure (M.E.P.). This is due to the fact that the rate of diffusion of N2O is greater inwards than outwards. This rise in the middle-ear pressure is due to the packing of the nasopharynx after adenoidectomy for haemostasis.

Type
Research Article
Copyright
Copyright © JLO (1984) Limited 1984

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References

Matz, G. J., Rattenborg, C. G., and Holaday, D. A. (1967) Effects of N2O on middle—ear pressure. Anesthesiology, 28: 948950.CrossRefGoogle Scholar
Owens, W. D., Gustave, F. and Sclaroff, A. (1978) Tympanic Membrane rupture with Nitrous Oxide anaesthesia. Anaesthesia-Analgesia, 57: 283286.CrossRefGoogle Scholar
Patterson, M. E. and Bartlett, P. C. (1976) Hearing impairment caused by intratympanic pressure changes during general anaesthesia. The Laryngoscope, 86, 399.CrossRefGoogle Scholar
Waun, J. E., Sweitzer, R. S. and Hamilton, W. K. (1967) Effect of nitrous oxide on middle ear mechanics and hearing acuity. Anaesthesiology, 28, 846.CrossRefGoogle ScholarPubMed