%0 Journal Article %T Outcome and prognosis of isolated carotid vasculitis. %A Hankard A %A Maalouf G %A Laouni J %A Espitia O %A Agard C %A De Boysson H %A Aouba A %A Sacré K %A Papo T %A Leroux G %A Vautier M %A Desbois AC %A Domont F %A Le Joncour A %A Mirouse A %A Chiche L %A Skaff Y %A Gaudric J %A Boussouar S %A Redheuil A %A Bravetti M %A Cacoub P %A Saadoun D %J J Autoimmun %V 146 %N 0 %D 2024 Jun 17 %M 38761452 %F 14.511 %R 10.1016/j.jaut.2024.103242 %X OBJECTIVE: To assess the prognosis and outcome of patients with isolated carotid vasculitis.
METHODS: We performed a retrospective multicenter study of 36 patients (median age at diagnosis was 37 [IQR 27-45] years and 11 [31 %] patients were men) with initial presentation as isolated carotid vasculitis. Study endpoints included vascular complications, relapses, and progression to large vessel vasculitis (i.e. Giant cell arteritis or Takayasu).
RESULTS: The most frequent involvement was the left internal carotid artery (39 %), and 81 % had stenosis. After a median follow-up of 32 months [IQR 12-96], 21 (58 %) patients had a vascular event, including 31 % of new onset vascular lesions and 25 % of stroke/transient ischemic attack. Patients with stroke had less carotidynia at diagnosis (33 % vs 74 %, p = 0.046), higher significant carotid stenosis (i.e. > 50 %) (89 % vs. 30 %, p = 0.026) and higher severe carotid stenosis (i.e. >70 %) (67 % vs 19 %, p = 0.012), compared to those without stroke. Twenty (52 %) patients experienced relapses. High CRP at diagnosis was associated with relapses (p = 0.022). At the end of follow-up, 21 (58 %) patients were classified as having Takayasu arteritis, 13 (36 %) as isolated carotid vasculitis, and two (6 %) as giant cell arteritis.
CONCLUSIONS: Carotid vasculitis may occur as a topographically limited lesion and is associated with significant rate of vascular complications.