Conductive Hearing Loss with Present Acoustic Reflex: A Case Report


Acoustic reflex is a sensitive indicator of middle ear lesions when the tympanic membrane is in-tact and tympanometry is normal. Acoustic reflex is not usually observed in conductive hearing loss caused by disruption of the ossicular chain including ossicular discontinuity and fixation. Ossicular disruption can show at least partially intact acoustic reflex under a certain condition. Moreover, ossicular discontinuity with a nearly intact acoustic reflex is quite rare and there have been few reports published to date. We here present a rare case of conductive hearing loss with a nearly intact acoustic reflex, and the patient was surgically confirmed to have ossicular discontinuity.

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Sakamoto, T. , Kikuta, S. , Urata, S. , Yasuhara, K. , Kikkawa, Y. and Yamasoba, T. (2014) Conductive Hearing Loss with Present Acoustic Reflex: A Case Report. Open Journal of Clinical Diagnostics, 4, 177-181. doi: 10.4236/ojcd.2014.43026.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Hayes, D. (1977) Audiologic Quiz Case. Archives of Otolaryngology, 103, 502-503.
[2] Isenberg, S.F. and Tubergen, L.B. (1980) An Unusual Congenital Middle Ear Ossicular Anomaly. Archives of Otolaryngology, 106, 179-181.
[3] Jenkins, H.A., Morgan, D.E. and Miller, R.H. (1980) Intact Acoustic Reflexes in the Presence of Ossicular Disruption. The Laryngoscope, 90, 267-273.
[4] Ebert Jr., C.S., Zanation, A.M. and Buchman, C.A. (2008) Another Cause for Conductive Hearing Loss with Present Acoustic Reflexes. The Laryngoscope, 118, 2059-2061.
[5] Cox, K.M., Lee, D.J., Carey, J.P. and Minor, L.B. (2003) Dehiscence of Bone Overlying the Superior Semicircular Canal as a Cause of an Air-Bone Gap on Audiometry: A Case Study. American Journal of Audiology, 12, 11-16.
[6] Merchant, S.N., Nakajima, H.H., Halpin, C., Nadol Jr., J.B., Lee, D.J., et al. (2007) Clinical Investigation and Mechanism of Air-Bone Gaps in Large Vestibular Aqueduct Syndrome. The Annals of Otology, Rhinology, and Laryngology, 116, 532-541.
[7] Mikulec, A.A., McKenna, M.J., Ramsey, M.J., Rosowski, J.J., Herrmann, B.S., et al. (2004) Superior Semicircular Canal Dehiscence Presenting as Conductive Hearing Loss without Vertigo. Otology & Neurotology, 25, 121-129.
[8] Liden, G., Harford, E. and Hallen, O. (1974) Tympanometry for the Diagnosis of Ossicular Disruption. Archives of Otolaryngology, 99, 23-29.
[9] Zwislocki, J.J. and Feldman, A.S. (1970) Acoustic Impedance of Pathological Ears. ASHA Monographs, 15, 1-42.

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