• Rev Med Interne · Oct 2024

    Review

    French protocol for diagnosis and management of Cogan's syndrome.

    • Laurent Arnaud, Alexandra Audemard-Verger, Alexandre Belot, Boris Bienvenu, Carole Burillon, François Chasset, Florence Chaudot, Raphael Darbon, Anastasia Delmotte, Mikael Ebbo, Olivier Espitia, Anne-Laure Fauchais, Alexis F Guedon, Eric Hachulla, Jérôme Hadjadj, Charlotte Hautefort, Vincent Jachiet, Elisabeth Mamelle, Mickael Martin, Marc Muraine, Thomas Papo, Jacques Pouchot, Grégory Pugnet, Pascal Seve, Thierry Zenone, Arsène Mekinian, and contributors.
    • INSERM UMRS-1109, Department of Rheumatology, National Reference Center for Autoimmune diseases (RESO), Strasbourg-Hautepierre University Hospital, Strasbourg, France.
    • Rev Med Interne. 2024 Oct 24.

    AbstractCogan's syndrome is a condition of unknown origin, classified as a systemic vasculitis. It is characterised by a predilection for the cornea and the inner ear. It mainly affects Caucasian individuals with a sex-ratio close to one. Ophthalmological and cochleo-vestibular involvement are the most common manifestations of the disease. The most frequent ophthalmological type of involvement is non-syphilitic interstitial keratitis. Cochleo-vestibular manifestations are similar to those of Meniere's syndrome. The disease progresses in ocular and ear-nose-throat (ENT) flares, which may occur simultaneously or in isolation. Association with other autoimmune diseases, particularly other forms of vasculitis such as polyarteritis nodosa or Takayasu's arteritis, is possible. Ocular involvement, as well as cochleo-vestibular involvement, can be inaugural and initially isolated. Onset is often abrupt. The characteristic involvement is "non-syphilitic" interstitial keratitis. It is usually bilateral from the outset or becomes so during the course of the disease. It presents as a red, painful eye, possibly associated with decreased visual acuity. Cochleo-vestibular involvement is usually bilateral from the outset. It is characterised by the sudden onset of continuous rotational vertigo associated with tinnitus, rapidly progressive sensorineural deafness. Approximately 30-70% of patients present with systemic manifestations. Deterioration in general status with fever may be present. Laboratory evidence of inflammatory syndrome is associated in 75% of cases. Cogan's syndrome is a presumed autoimmune type of vasculitis, although no specific autoantibodies have been identified. Ocular involvement is usually associated with a good prognosis, with total visual acuity recovery in the majority of cases. In contrast, cochleo-vestibular involvement can be severe and irreversible. Therapeutic management of Cogan's syndrome, given its rarity, lacks consensus since no prospective randomised studies have been conducted to date. Corticosteroid therapy is the first-line treatment. Combination with anti-TNF therapy should be promptly discussed.Copyright © 2024 The Authors. Published by Elsevier Masson SAS.. All rights reserved.

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