Immunologic Markers as Potential Predictors of Systemic Autoimmune Disease in Patients with Idiopathic Scleritis - 21/08/11
Inquiries to Debra A. Goldstein, University of Illinois at Chicago, Department of Ophthalmology, 1905 W. Taylor St., L131 L.I.E.R.I., M/C 648, Chicago, IL 60612Résumé |
Purpose |
To determine the clinical value of serological testing in patients with idiopathic scleritis.
Design |
Retrospective case series.
Methods |
Medical records of patients with scleritis seen at an institutional referral center over an 11-year period were reviewed.
Results |
Of 119 patients with scleritis seen at the University of Illinois Uveitis Clinic, 91 (76.5%) patients had no known etiology at initial presentation. Seventy of the 91 patients were tested for rheumatoid factor (RF), 19 (27.1%) of whom had a positive result. Ten (52.6%) of these RF positive patients were subsequently diagnosed with rheumatoid arthritis (RA) during a mean follow-up of 10.6 months (range, zero to 72 months), whereas only one of 51 (2.0%) RF negative patients developed RA, producing an odds ratio for developing RA in RF positive patients of 55.6 (95% confidence interval (CI) 7.8 to 369.8, P = .00001). Of the 70 patients who were tested for anti-neutrophil cytoplasmic antibody (ANCA), seven (10.0%) tested positive. Three (42.9%) of the ANCA positive patients subsequently developed Wegener granulomatosis (WG), whereas only two of 63 ANCA negative patients (3.2%) developed WG during a mean follow-up of 8.4 months (range, zero to 72 months). The odds ratio for developing WG in patients with idiopathic scleritis and a positive ANCA screen compared with a negative ANCA was 22.9 (95% CI 3.4 to 154.2, P = .006).
Conclusions |
The likelihood of patients with idiopathic scleritis developing RA and WG was increased if they had a positive RF or ANCA, supporting the role of immunologic marker testing in patients who present without systemic disease.
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Vol 145 - N° 3
P. 463 - mars 2008 Retour au numéro
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