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Presentation of large vestibular aqueduct syndrome to a dizziness unit
1University of Toronto, Sunnybrook Health Science Centre, Ontario, Canada.
Insights
Large Vestibular Aqueduct Syndrome (LVAS) is linked to childhood sensorineural hearing loss and vestibular issues like imbalance and vertigo. This study characterizes these vestibular complaints in patients with enlarged vestibular aqueducts.
Area of Science:
- Otolaryngology
- Pediatric Audiology
- Neurotology
Background:
- Enlarged vestibular aqueduct is associated with sensorineural hearing loss in children.
- Vestibular complaints in children with enlarged vestibular aqueducts are not well-characterized.
- The Large Vestibular Aqueduct Syndrome (LVAS) is a condition affecting the inner ear.
Observation:
- Patients presenting with dizziness and sensorineural hearing loss were evaluated.
- These patients reported a history of imbalance and vertigo.
- High-resolution CT scans confirmed bilateral enlarged vestibular aqueducts in all evaluated patients.
Findings:
- Children with sensorineural hearing loss and enlarged vestibular aqueducts experience vestibular symptoms.
- Imbalance and vertigo are common subjective complaints in this patient population.
- Bilateral enlarged vestibular aqueducts are a consistent radiological finding.
Implications:
- Understanding the pathophysiology of LVAS is crucial for managing pediatric hearing and balance disorders.
- This characterization of vestibular complaints can aid in early diagnosis and intervention.
- Further research into the link between enlarged vestibular aqueduct and vestibular dysfunction is warranted.
Abstract:
An abnormally enlarged vestibular aqueduct has been associated with sensorineural hearing loss in children. Vestibular complaints, in this patient population, have not been characterized. Several patients have presented to the dizziness unit at Sunnybrook with vestibular related complaints. These patients all had sensorineural hearing loss noted in childhood. All provided recollections of periods of imbalance and vertigo. High resolution CT scan documented the presence of bilateral enlarged vestibular aqueducts. The Large Vestibular Aqueduct Syndrome (LVAS) will be discussed with reference to the pathophysiology of the vestibular complaints.