Objective: To explore the CT features and the auditory threshold in patients with bilateral large vestibular aqueduct syndrome.
Method: The diameter of vestibular aqueduct in CT and the auditory threshold in each ears of seven patients were measured.
Result: Asymmetry of the enlarged vestibular aqueduct was found in all patients of whom the side the vestibular aqueduct enlarged was found having a greater hearing loss than the other side in the same patient (paried t-test; P < 0.05).
Conclusion: The measurement of vestibular aqueduct may be useful in determining the prognosis of patients with large vestibular aqueduct syndrome.