Neurology India · 2022
A Study of Neuromyelitis Optica Spectrum Disorders (NMOSD): Disease Pattern Based on Antibody Status.
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Joshi Pranav B, Shah Shalin D, Patel Mayank A, Shah Sudhir V, Darji Shailesh H, Mirche Kailash C
Аннотация
INTRODUCTION: Neuromyelitis optica (NMO) is a central demyelinating disorder, predominantly affecting the optic nerves and spinal cord and autoimmune basis. We aimed to analyze the clinical, laboratory, and imaging features associated with NMO spectrum disorders (NMOSD) according to the aquaporin 4 antibody (AQP4-Ab) serology status.
METHODS: The inclusion of the patients was based on the Wingerchuk criteria (2006) for NMO, known antibody status and has minimum 1-year follow-up. We analyzed and compared 46 patients with known antibody status.
RESULTS: AQP4-Ab positivity was 56.5%. The male to female ratio in the seropositive group was 1:7.7 and 1:1.2 in the seronegative group. The mean age of onset in seropositive patients was 36.8 years (vs 28.8 years in seronegative NMOSD patients). Clinical feature, cerebrospinal fluid (CSF) and magnetic resonance imaging (MRI) features were also different, but data from two subsets did not reach statistical significance. The relapse rate was higher in AQP4 positive NMOSD (84.6% vs 55% in the seronegative group). The recovery rate for AQP4 positive patients was poor (15%).
SUMMARY: We found differences in age, gender, and prognosis between the two groups. Antibody status may be a guiding factor in deciding the treatment approach during the first attack of NMOSD.
METHODS: The inclusion of the patients was based on the Wingerchuk criteria (2006) for NMO, known antibody status and has minimum 1-year follow-up. We analyzed and compared 46 patients with known antibody status.
RESULTS: AQP4-Ab positivity was 56.5%. The male to female ratio in the seropositive group was 1:7.7 and 1:1.2 in the seronegative group. The mean age of onset in seropositive patients was 36.8 years (vs 28.8 years in seronegative NMOSD patients). Clinical feature, cerebrospinal fluid (CSF) and magnetic resonance imaging (MRI) features were also different, but data from two subsets did not reach statistical significance. The relapse rate was higher in AQP4 positive NMOSD (84.6% vs 55% in the seronegative group). The recovery rate for AQP4 positive patients was poor (15%).
SUMMARY: We found differences in age, gender, and prognosis between the two groups. Antibody status may be a guiding factor in deciding the treatment approach during the first attack of NMOSD.