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Misdiagnosis of hearing loss due to ear canal collapse: a report of two cases

  • Cliodna F. O Mahoney (a1) and Linda M. Luxon (a1)

Abstract

Collapse of the external auditory meatus during audiometry can lead to spuriously increased hearing thresholds being obtained, particularly at high frequencies, and may simulate conditions such as noise-induced hearing loss, presbyacusis and retrocochlear pathology. Consequently, inappropriate investigations and management may be undertaken. Two patients with elevated thresholds secondary to ear canal collapse are described. The implications of initially failing to identify the true nature of their ‘hearing losses’ are highlighted and strategies to avoid such pitfalls are discussed.

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Corresponding author

Address for correspondence: Dr Cliodna F. O Mahoney, Dept of Audiological Medicine, Royal National Throat, Nose and Ear Hospital, 330 Gray's Inn Road, London WC1X 8DA.

References

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Anderson, H., Barr, B. (1971) Conductive high-tone hearing loss. Archives of Otolaryngology 93: 599605.
Bess, J. C. (1971) Ear canal collapse. A review. Archives of Otolaryngology 93: 408412.
British Standards Institution (1988) I.S.O. 389 – Part 5. Standard reference zero for the calibration of pure tone air conduction audiometers. Specification for a standard reference zero using an acoustic coupler complying with BS 4668.
Bryde, R. L., Feldman, A. S. (1980) An approach to the management of the collapsing ear canal. ASHA 22: 734.
Burkhard, M. D., Corliss, E. L. R. (1954) The response of earphones in ears and couplers. Journal of the Acoustical Society of America 26(5): 679685.
Chaiklin, J. B., McClellan, M. E. (1971) Audiometric management of collapsible ear canals. Archives of Otolaryngology 93: 397–107.
Chandler, J. R. (1964) Partial occlusion of the external auditory meatus: Its effect upon air and bone conduction acuity. Laryngoscope 74: 2254.
Coles, R. A. (1967) External meatus closure by audiometer earphone. Journal of Speech and Hearing Disorders 32: 296297.
Creston, J. E. (1965) Collapse of the ear canal during routine audiometry. Journal of Laryngology 79: 893901.
Creston, J. E., Tice, R. E. (1964) Collapse of the ear canal during audiometry. Archives of Otolaryngology 79: 389392.
Dick, J. C. (1947) Observations on the elastic tissue of the skin with a note on the reticular layer at the junction of the dermis and epidermis. Journal of Anatomy 81: 201211.
Erber, N. P. (1968) Variables that influence sound pressures generated in the ear canal by an audiometric earphone. Journal of the Acoustical Society of America 44(2): 555562.
Hildyard, V. H., Valentine, M. A. (1962) Collapse of the ear canal during audiometry. Archives of Otolaryngology 75: 422423.
Killion, M. C., Villchur, E. (1989) Comments on 'Earphones in audiometry' (Zwislocki et al., Journal of the Acoustical Society of America 83: 1688–1689 (1988)). Journal of the Acoustical Society of America 85(4): 17751779.
Klockhoff, I. (1961) Middle ear muscle reflexes in man. Acta Otolaryngologica (suppl 164): 192.
Ma, C. K., Cowdry, E. V. (1950) Aging of elastic tissue in human skin. Journal of Gerontology 5: 203210.
Marshall, L., Grossman, M. A. (1982) Management of earcanal collapse. Archives of Otolaryngology 108: 357361.
Marshall, L., Martinez, S. A., Schlaman, M. E. (1983) Reassessment of high-frequency air-bone gaps in older adults. Archives of Otolaryngology 109: 601606.
Mustain, W. D., Hasseltine, H. E. (1981) High frequency conductive hearing loss. A case presentation. Laryngoscope 91: 599604.
Pearlman, R. C. (1975) Preventing collapse of external auditory meatus during audiometry. Archives of Otolaryngology 101: 686688.
Penrod, J. P. (1981) Ear canal collapse: A case presentation. Ear and Hearing 2: 8889.
Randolph, L. J., Schow, R. L. (1983) Threshold inaccuracies in an elderly clinical population: Ear canal collapse as a possible cause. Journal of Speech and Hearing Research 26: 5458.
Shipton, M. S. (1979) Tables relating pure-tone audiometric threshold to age. National Physical Laboratory Acoustics Report 94.
Ventry, I. M., Chaiklin, J. B., Boyle, W. F. (1961) Collapse of the ear canal during audiometry. Archives of Otolaryngology 73: 727731.
Villchur, E. (1970) Audiometer-earphone mounting to improve intersubject and cushion-fit reliability. Journal of the Acoustical Society of America 48: 13871396.
Zwislocki, J., Kruger, B., Miller, J. D., Niemoeller, A. F., Shaw, E. A., Studebaker, G. (1988) Earphones in audiometry. Journal of Acoustical Society of America 83: 16881689.

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