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[Cogan syndrome with audiovestibular disfunction: 2 cases report]
Summary
Cogan syndrome, a rare condition, presents with hearing loss and vestibular dysfunction. Early diagnosis is crucial for managing this autoimmune disorder affecting the auditory and vestibular systems.
Area of Science:
- Ophthalmology
- Neurology
- Otorhinolaryngology
Background:
- Cogan syndrome is a rare autoimmune disorder characterized by non-syphilitic interstitial keratitis and vestibuloauditory dysfunction.
- Early diagnosis is challenging due to nonspecific symptoms, yet critical for prognosis.
Observation:
- Two patients with Cogan syndrome presented with bilateral moderate to severe sensorineural hearing loss.
- Vestibular examination revealed bilateral semicircular canal paresis with abnormal head impulse test gains (0.09-0.55) and compensatory saccades.
Findings:
- The auditory and vestibular systems are frequently involved in Cogan syndrome, indicating a potential for poor prognosis.
- Diagnostic challenges persist due to the syndrome's rarity and varied clinical presentations.
Implications:
- Prompt diagnosis and intervention are essential for patients with Cogan syndrome to mitigate severe auditory and vestibular deficits.
- Understanding the audiovestibular manifestations aids in early identification and management of this rare condition.
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