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Comprehensive vestibular evaluation in patients with Otosclerosis: a case control study
Mohsen Rajati1, Sadegh Jafarzadeh2,3, Raziyeh Javadzadeh4
1Sinus and Surgical Endoscopic Research Center, Department of Otorhinolaryngology, School of Medicine, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
Otosclerosis affects the vestibular system, impacting balance even in asymptomatic patients. This study found significant vestibular abnormalities, particularly in the otolithic system, in otosclerosis patients.
Area of Science:
- Otolaryngology
- Neuroscience
- Audiology
Background:
- Otosclerosis is a common otologic disease with poorly understood vestibular involvement mechanisms.
- Comprehensive vestibular evaluation is crucial for understanding otosclerosis's full impact.
Purpose of the Study:
- To conduct a detailed vestibular assessment in otosclerosis patients.
- To compare vestibular function in otosclerosis cases versus a control group.
Main Methods:
- 61 participants underwent audiometry, ocular and cervical vestibular evoked myogenic potential (o-VEMP and c-VEMP), video head impulse (vHIT), and caloric tests.
- Data were analyzed comparing otosclerosis patients (50.82%) with controls (49.18%).
Main Results:
- Significant differences in mean vHIT gain were observed between groups (P < 0.05), though within normal limits.
- Otosclerosis patients showed significant vestibular weakness via caloric tests and abnormal o-VEMP and c-VEMP results (P < 0.05).
Conclusions:
- The vestibular system is demonstrably affected by otosclerosis, even in individuals without overt symptoms.
- The otolithic system appears more susceptible to otosclerosis-related involvement than the semicircular canals.
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