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. 2011 Jan;63(1):45-9.
doi: 10.1007/s12070-011-0117-x. Epub 2011 Jan 12.

Peripheral auditory assessment in minor head injury: a prospective study in tertiary hospital

Lingamdenne Paul Emerson, John Mathew, Achamma Balraj, Anand Job, Pushp Raj Singh

Peripheral auditory assessment in minor head injury: a prospective study in tertiary hospital

Lingamdenne Paul Emerson et al. Indian J Otolaryngol Head Neck Surg. 2011 Jan.

Abstract

Hearing loss is a common problem encountered in ENT practice. Hearing loss following head injury is a major medical problem in both adults and children, which may go unnoticed when it does not affect speech frequencies. Sensorineural hearing loss at high frequencies is a common finding in minor head injury. Patients with history suggestive of mild head injury (MHI) according to Glasgow coma scale score were evaluated. The most common cause of MHI was road traffic accidents involving two wheeler riders without helmets. Higher the frequencies affected, and severe the hearing loss, poorer was the prognosis. Distortion product oto-acoustic emissions assessment at 3000 and 4000 Hz were found to be significant and has a higher predictive value in assessing outer hair cell damage.

Keywords: DPOAE; Hearing loss; Minor head injury; Road traffic accidents.

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Figures

Fig. 1
Fig. 1
83% were males. 66% were between ages of 20 and 50 years
Fig. 2
Fig. 2
Hearing loss on evaluation
Fig. 3
Fig. 3
PTA on evaluation
Fig. 4
Fig. 4
Progression of hearing loss in high frequency region
Fig. 5
Fig. 5
DPOAE at 3000 and 4000 Hz
See this image and copyright information in PMC

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