Overview
Cogan's syndrome is a rare systemic vasculitis of unknown origin characterized by ocular (predominantly non-syphilitic interstitial keratitis) and cochleo-vestibular (resembling Meniere's syndrome) manifestations 1.Diagnosis
Key Diagnostic Criteria: Non-syphilitic interstitial keratitis and vestibuloauditory dysfunction 1.
Recommended Tests: Ophthalmological examination for corneal involvement; audiometry, electronystagmography, and vestibular function tests for cochleo-vestibular symptoms 1.
Differential Diagnosis: Consider other forms of vasculitis such as polyarteritis nodosa or Takayasu's arteritis 1.Management
First-Line Treatments: Corticosteroids are often used to manage inflammation 1.
Adjunctive Treatments: Immunosuppressive agents like cyclophosphamide or azathioprine may be necessary for refractory cases 1.
Specific Considerations: Tailor treatment based on disease activity and organ involvement 1.Special Populations
Pregnancy: Pregnancy can be achieved with careful management; ocular symptoms may relapse during the first trimester but overall outcomes can be favorable 2.Key Recommendations
Initiate treatment with corticosteroids for managing inflammation in Cogan's syndrome (Evidence: Moderate) 1.
Consider immunosuppressive therapy (e.g., cyclophosphamide, azathioprine) for patients with refractory symptoms (Evidence: Moderate) 1.
Monitor and manage pregnant patients with Cogan's syndrome closely, anticipating potential ocular symptom relapses during early pregnancy (Evidence: Weak) 2.References
1 Arnaud L, Audemard-Verger A, Belot A, Bienvenu B, Burillon C, Chasset F et al.. French protocol for diagnosis and management of Cogan's syndrome. La Revue de medecine interne 2025. link
2 Deliveliotou A, Moustakarias T, Argeitis J, Vaggos G, Vitoratos N, Hassiakos D. Successful full-term pregnancy in a woman with Cogan's syndrome: a case report. Clinical rheumatology 2007. link