Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-27T23:15:17.703Z Has data issue: false hasContentIssue false

Raised ABR threshold after suction aspiration of glue from the middle ear: three case studies

Published online by Cambridge University Press:  29 June 2007

J. D. T. Mason*
Affiliation:
Department of Otolaryngology, University Hospital, Nottingham, UK.
S. M. Mason
Affiliation:
Department of Medical Physics, University Hospital, Nottingham, UK.
K. P. Gibbin
Affiliation:
Department of Otolaryngology, University Hospital, Nottingham, UK.
*
Mr J. D. T. Mason, Department of Otolaryngology, Leicester Royal Infirmary, Leicester LE1 5WW

Abstract

Between 1991 and 1993, 13 children (25 hearing ears) underwent recordings of the auditory brain stem response (ABR) under a general anaesthetic. The anaesthetic technique was similar for each child. Fourteen of these ears had fluid aspirated after myringotomy with insertion of grommets prior to the auditory brain stem response investigation. On subsequent hearing assessment six of these 14 ears (43 per cent) showed clear evidence of a threshold shift of 15 dB or greater. Eleven ears had either dry myringotomies or did not have a myringotomy prior to ABR and none of these showed evidence of a temporary threshold shift. Using Fisher's Exact probability test this difference is significant (p = 0.034). We feel it is important to report these observations so that unexpected high ABR thresholds following aspiration of glue are interpreted with caution.

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Chambers, R. D., Rowan, L. E., Matthies, M. L., Novak, M. A. (1989) Auditory brain stem responses in children with previous otitis media. Archives of Otolaryngology, Head and Neck Surgery 115(4): 452457.CrossRefGoogle ScholarPubMed
Fria, T. J., Sabo, D. L. (1980) Auditory brain stem responses in children with otitis media with effusion. Annals of Otology Rhinology and Laryngology 89 (supp. 68): 200206.Google Scholar
Mason, S. M. (1993) Electric response audiometry. In: Paediatric Audiology, 0–5 Years. (McCormick, B.. ed.). Whurr Publishers, London, pp 187249.Google Scholar
Owen, M. J., Morcross-Nechay, K., Howie, V. M. (1993) Brain stem auditory evoked potentials in young children before and after tympanostomy tube placement. International Journal of Pediatric Otorhinolaryngology 25: 105117.Google Scholar
Wetmore, R. F., Henry, W. J., Konkle, D. F. (1993) Acoustical factors of noise created by suctioning middle ear fluid. Archives of Otolaryngology, Head and Neck Surgery 119: 762766.Google Scholar