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KMID : 1130620180140030351
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Journal of Clinical Neurology
2018 Volume.14 No. 3 p.351 ~ p.358
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Recurrent Optic Neuritis as the Initial Symptom in Demyelinating Diseases
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Falcao-Goncalves Alessandra Billi
Bichuetti Denis Bernardi
de Oliveira Enedina Maria Lobato
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Abstract
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Background and Purpose: Optic neuritis (ON) is an inflammation of the optic nerve that can be recurrent, with unilateral or bilateral presentation. Diagnosing recurrent cases may be challenging. We aimed to compare patients with recurrent ON as their initial symptom according to their following final diagnoses: multiple sclerosis (MS), neuromyelitis optica spectrum disorders (NMOSD), or chronic relapsing inflammatory optic neuropathy (CRION).
Methods: The medical records of patients with initial recurrent ON who were followed at the Neuroimmunology Clinic of the Federal University of Sao Paulo between 2004 and 2016 were analyzed retrospectively. Patients were classified according to their final diagnosis into MS, NMOSD, or CRION, and the characteristics of these groups were compared to identify predictive factors.
Results: Thirty-three patients with recurrent ON were included, and 6, 14, and 13 had final diagnoses of MS, NMOSD, and CRION, respectively. Most of the patients were female with unilateral and severe ON in their first episode, and the initial Visual Functional System Score (VFSS) was ≥5 in 63.6%, 85.7%, and 16.7% of the patients with CRION, NMOSD, and MS, respectively. Anti-aquaporin-4 antibodies were detected in 9 of 21 (42.8%) tested patients. Seven of nine (77.8%) seropositive NMOSD patients experienced transverse myelitis episodes during the follow-up period. A multivariate regression analysis showed that the VFSS at the last medical appointment predicted the final diagnosis.
Conclusions: A lower VFSS at the last medical appointment was predictive of MS. Patients with NMOSD and CRION have similar clinical characteristics, whereas NMOSD patients tend to have worse visual acuity.
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KEYWORD
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optic neuritis, multiple sclerosis, neuromyelitis optica, recurrence, aquaporin 4
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