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Vestibular testing in children with severe-to-profound hearing loss
Mona A Kotait1, Asmaa S Moaty2, Takwa A Gabr3
1Audiovestibular Unit, Otolaryngology Head and Neck Surgery Department, Faculty of Medicine, Tanta University, Egypt.
International Journal of Pediatric Otorhinolaryngology
|August 12, 2019
Summary
Children with severe to profound sensorineural hearing loss (SNHL) often exhibit vestibular abnormalities. Vestibular function testing is crucial for their rehabilitation planning.
Area of Science:
- Otolaryngology
- Pediatrics
- Neuroscience
Background:
- Sensorineural hearing loss (SNHL) in children is frequently associated with vestibular system dysfunction.
- The severity of cochlear pathology in SNHL may correlate with the extent of vestibular affection.
Purpose of the Study:
- To evaluate vestibular function in children diagnosed with congenital severe to profound SNHL.
- To correlate the degree of hearing loss with vestibular test outcomes in this pediatric population.
Main Methods:
- A cohort of 52 children was studied, comprising 20 healthy controls and 32 with congenital severe to profound SNHL.
- Participants underwent audiologic evaluation, combined vestibular evoked myogenic potentials (VEMPs), and sinusoidal harmonic acceleration (SHA) rotatory chair testing.
Main Results:
- Abnormal cervical (cVEMPs) and ocular (oVEMPs) vestibular evoked myogenic potentials were observed in 89% and 96.9% of affected children, respectively.
- The rotatory chair test revealed reduced gain, phase lead, and increased asymmetry in 50% of children with SNHL.
- A significant correlation was found between hearing loss severity and VEMPs abnormalities, but not with SHA test results.
Conclusions:
- Congenital severe to profound SNHL is clearly linked to vestibular abnormalities, as evidenced by VEMPs and rotatory chair testing.
- Comprehensive vestibular assessment is vital for developing effective rehabilitation strategies for children with SNHL.
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