Abstract |
Sudden sensorineural hearing loss is usually unilateral, and the cause is not identified in most adult cases. However, a specific cause has frequently been found in the case of children, in whom idiopathic sudden sensorineural hearing loss (ISHL) is comparatively rare. We investigated 20 cases of acute unilateral sensorineural hearing loss in children associated with a certain disease, but which was first diagnosed as ISHL. Thirteen patients aged 6 to 16 years old were diagnosed as having psychogenic ( functional) hearing loss. Discrepancies in behavioral and objective tests are most valuable when functional hearing loss is suspected. Elevated pure-tone thresholds associated with normal distortion product otoacoustic emissions (DPOAEs) enable prompt further investigation. There are several conditions that may mimic functional hearing loss, so auditory brainstem response (ABR) testing is necessary to verify the actual cause. The unilateral profound hearing loss in 2 patients aged 7 and 11 years old was due to asymptomatic mumps proven by detecting the mumps IgM antibody. Total hearing recovery in the 125-1000 Hz frequencies occurred in one case. In 5 patients aged 6 to 12 years old with acute hearing loss and vertigo, high resolution CT imaging showed an abnormally enlarged vestibular aqueduct on the affected side. Large vestibular aqueduct syndrome should be considered in acute high-frequency sloping hearing loss with an A-B gap at low frequencies.
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Authors | Hidenobu Taiji, Noriko Morimoto |
Journal | Nihon Jibiinkoka Gakkai kaiho
(Nihon Jibiinkoka Gakkai Kaiho)
Vol. 115
Issue 7
Pg. 676-81
(Jul 2012)
ISSN: 0030-6622 [Print] Japan |
PMID | 22991853
(Publication Type: Journal Article, Research Support, U.S. Gov't, Non-P.H.S.)
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Topics |
- Adolescent
- Child
- Differential Threshold
- Evoked Potentials, Auditory, Brain Stem
- Female
- Hearing Loss, Functional
(diagnosis)
- Hearing Loss, Sensorineural
(diagnosis)
- Hearing Loss, Sudden
(diagnosis, etiology)
- Hearing Loss, Unilateral
(diagnosis)
- Humans
- Male
- Mumps
(complications)
- Otoacoustic Emissions, Spontaneous
- Radiography
- Vestibular Aqueduct
(abnormalities, diagnostic imaging)
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