A large vestibular aqueduct is one of the commonest radiological abnormalities of the inner ear. A case of acute profound unilateral sensorineural hearing loss and balance disturbance following minor head trauma in the presence of an abnormally enlarged vestibular aqueduct is described. The significance of a diagnosis of large vestibular aqueduct syndrome, in the presence of serviceable hearing, is that it identifies patients who should refrain from activities that increase intracranial pressure to prevent hearing loss.
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Walsh et al. (1999) studied this question.