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Effects of Inhalant Anesthesia on the Middle Ear as Measured by Tympanometry

Effects of Inhalant Anesthesia on the Middle Ear as Measured by Tympanometry Abstract • This investigation examined the effects of inhalant anesthesia, nitrous oxide and halothane, on middle ear pressure. Moreover, the effect of inhalant anesthesia on the validation procedure for tympanometry was examined. Tympanometry was used to measure middle ear pressure variations. Subjects were examined with tympanometry prior to and after the administration of inhalant anesthesia. Group 1 (N=86) received halothane and nitrous oxide. Group 2 (N=52) received halothane only. Group 1 data were gathered in a previous investigation. The investigation was continued with subjects in group 2. Results indicated that middle ear status prior to anesthesia was not significantly different from middle ear status under anesthesia. In addition, middle ear pressure changes due to nitrous oxide were not significantly different from middle ear pressure changes due to halothane alone. Moreover, there was no effect on the tympanometry validation procedure. These findings are consistent with previous studies that indicate nonsignificant changes in middle ear pressure associated with the use of nitrous oxide and halothane. (Arch Otolaryngol Head Neck Surg. 1993;119:283-287) References 1. Bluestone CD. Otitis media in children: to treat or not to treat . N Engl J Med. 1982;306:1399-1404.Crossref 2. Drake-Lee AB, Casey WF. Anaesthesia and tympanometry . Int J Pediatr Otorhinolaryngol. 1983;6:171-178. 3. Fried MP, Vernick DM, Silberstein V, Kelly JH, Strome M. The effects of anesthesia on middle ear effusions . Laryngoscope . 1988;98:23-25.Crossref 4. Gates GA, Cooper JG. Effect of anesthesia gases on middle ear pressure in the presence of effusion . Ann Otol Rhinol Laryngol. 1980;89( (suppl 68) ):62-64. 5. Marshall FPF, Cable HR. The effect of nitrous oxide on middle ear effusions . J Laryngol Otol. 1982;96:893-897.Crossref 6. Richards SH, O'Neill G, Wilson F. Middle-ear pressure variations during general anaesthesia . J Laryngol Otol. 1982;96:883-892.Crossref 7. Finitzo T, Friel-Patti S, Chinn K, Brown O. Tympanometry and otoscopy prior to myringotomy: issues in diagnosis of otitis media . Int J Pediatr Otorhinolaryngol. 1992;24:101-110.Crossref 8. Roland PS, Finitzo T, Friel-Patti S, et al. Otitis media: incidence, duration and hearing status . Arch Otolaryngol Head Neck Surg. 1989;115:1049-1053.Crossref 9. Brostoff L, Cantekin El. Observer invariant diagnosis of middle ear effusions . In: Lim D, Bluestone CD, Klein JO, Nelson JD, eds. Recent Advances in Otitis Media With Effusion: Proceedings of the Fourth International Symposium . Philadelphia, Pa: BC Decker Inc; 1988:47-49. 10. Rockette HE, Casselbrant ML. Methodologic issues in screening for otitis media . In: Lim D, Bluestone CD, Klein JO, Nelson JD, eds. Recent Advances in Otitis Media With Effusion: Proceedings of the Fourth International Symposium . Philadelphia, Pa: BC Decker Inc; 1988:42-44. 11. American Speech-Language-Hearing Association. Guidelines for screening for hearing impairments and middle ear disorders . ASHA . 1990; 32( (suppl 2) ):17-24. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Otolaryngology - Head & Neck Surgery American Medical Association

Effects of Inhalant Anesthesia on the Middle Ear as Measured by Tympanometry

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References (11)

Publisher
American Medical Association
Copyright
Copyright © 1993 American Medical Association. All Rights Reserved.
ISSN
0886-4470
eISSN
1538-361X
DOI
10.1001/archotol.1993.01880150031005
Publisher site
See Article on Publisher Site

Abstract

Abstract • This investigation examined the effects of inhalant anesthesia, nitrous oxide and halothane, on middle ear pressure. Moreover, the effect of inhalant anesthesia on the validation procedure for tympanometry was examined. Tympanometry was used to measure middle ear pressure variations. Subjects were examined with tympanometry prior to and after the administration of inhalant anesthesia. Group 1 (N=86) received halothane and nitrous oxide. Group 2 (N=52) received halothane only. Group 1 data were gathered in a previous investigation. The investigation was continued with subjects in group 2. Results indicated that middle ear status prior to anesthesia was not significantly different from middle ear status under anesthesia. In addition, middle ear pressure changes due to nitrous oxide were not significantly different from middle ear pressure changes due to halothane alone. Moreover, there was no effect on the tympanometry validation procedure. These findings are consistent with previous studies that indicate nonsignificant changes in middle ear pressure associated with the use of nitrous oxide and halothane. (Arch Otolaryngol Head Neck Surg. 1993;119:283-287) References 1. Bluestone CD. Otitis media in children: to treat or not to treat . N Engl J Med. 1982;306:1399-1404.Crossref 2. Drake-Lee AB, Casey WF. Anaesthesia and tympanometry . Int J Pediatr Otorhinolaryngol. 1983;6:171-178. 3. Fried MP, Vernick DM, Silberstein V, Kelly JH, Strome M. The effects of anesthesia on middle ear effusions . Laryngoscope . 1988;98:23-25.Crossref 4. Gates GA, Cooper JG. Effect of anesthesia gases on middle ear pressure in the presence of effusion . Ann Otol Rhinol Laryngol. 1980;89( (suppl 68) ):62-64. 5. Marshall FPF, Cable HR. The effect of nitrous oxide on middle ear effusions . J Laryngol Otol. 1982;96:893-897.Crossref 6. Richards SH, O'Neill G, Wilson F. Middle-ear pressure variations during general anaesthesia . J Laryngol Otol. 1982;96:883-892.Crossref 7. Finitzo T, Friel-Patti S, Chinn K, Brown O. Tympanometry and otoscopy prior to myringotomy: issues in diagnosis of otitis media . Int J Pediatr Otorhinolaryngol. 1992;24:101-110.Crossref 8. Roland PS, Finitzo T, Friel-Patti S, et al. Otitis media: incidence, duration and hearing status . Arch Otolaryngol Head Neck Surg. 1989;115:1049-1053.Crossref 9. Brostoff L, Cantekin El. Observer invariant diagnosis of middle ear effusions . In: Lim D, Bluestone CD, Klein JO, Nelson JD, eds. Recent Advances in Otitis Media With Effusion: Proceedings of the Fourth International Symposium . Philadelphia, Pa: BC Decker Inc; 1988:47-49. 10. Rockette HE, Casselbrant ML. Methodologic issues in screening for otitis media . In: Lim D, Bluestone CD, Klein JO, Nelson JD, eds. Recent Advances in Otitis Media With Effusion: Proceedings of the Fourth International Symposium . Philadelphia, Pa: BC Decker Inc; 1988:42-44. 11. American Speech-Language-Hearing Association. Guidelines for screening for hearing impairments and middle ear disorders . ASHA . 1990; 32( (suppl 2) ):17-24.

Journal

Archives of Otolaryngology - Head & Neck SurgeryAmerican Medical Association

Published: Mar 1, 1993

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