Cogan Syndrome: Symptoms, Causes, Treatment
متلازمة كوغان
Cogan syndrome is a rare inflammatory disease affecting the eyes and inner ears, and sometimes blood vessels. Sudden hearing change or painful loss of vision needs prompt assessment.
What is Cogan Syndrome?
Eye and hearing symptoms may occur at different times. Diagnosis requires coordinated eye, ear and rheumatology assessment and exclusion of mimics; dizziness alone is insufficient.
Related reading: Hearing loss assessment and other causes.
Symptoms
Eye redness, pain, light sensitivity and blurred vision may accompany tinnitus, hearing loss or vertigo. Fever and joint pain are possible.
Causes
An immune response is thought to drive inflammation, but the precise cause is unknown. Infectious and other inflammatory conditions with similar findings must be considered.
Risk factors
Young adults and other age groups may be affected. Combined eye and ear symptoms increase suspicion without proving the diagnosis; not every episode of vertigo or redness is Cogan syndrome.
Diagnosis
Evaluation includes detailed eye examination, hearing and balance testing, and targeted tests for mimicking illnesses. Cardiac or vascular imaging is selected when clinically indicated.
Treatment
Specialists choose local or systemic anti-inflammatory treatment according to eye, hearing and organ involvement. Immune-modifying drugs and hearing rehabilitation may be needed; steroid eye drops require examination and prescribing.
Complications
Permanent hearing or visual impairment may occur, and inflammation can affect the aorta or heart valves. Early treatment is important but cannot guarantee reversal of established damage.
Prevention
No established prevention exists. Prompt follow-up and tracking hearing or vision changes help assess activity and response while monitoring treatment effects.
When to see a doctor
Sudden hearing loss, severe eye pain or reduced vision requires same-day urgent assessment. Chest pain, neurological symptoms or fainting warrants emergency care.