Timing and Predictors of T2-Lesion Resolution in Patients With Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease
- PMID: 37336767
- PMCID: PMC10558168
- DOI: 10.1212/WNL.0000000000207478
Timing and Predictors of T2-Lesion Resolution in Patients With Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease
Abstract
Objectives: To determine the timing and predictors of T2-lesion resolution in myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD).
Methods: This retrospective observational study using standard-of-care data had inclusion criteria of MOGAD diagnosis, ≥2 MRIs 12 months apart, and ≥1 brain/spinal cord T2-lesion. The median (interquartile range [IQR]) number of MRIs (82% at disease onset) per-patient were: brain, 5 (2-8); spine, 4 (2-8). Predictors of T2-lesion resolution were assessed with age- and sex-adjusted generalized estimating equations and stratified by T2-lesion size (small <1 cm; large ≥1 cm).
Results: We studied 583 T2-lesions (brain, 512 [88%]; spinal cord, 71 [12%]) from 55 patients. At last MRI (median follow-up 54 months [IQR 7-74]) 455 T2-lesions (78%) resolved. The median (IQR) time to resolution was 3 months (1.4-7.0). Small T2-lesions resolved more frequently and faster than large T2-lesions. Acute T1-hypointensity decreased the likelihood (odds ratio [95% CI]) of T2-lesion resolution independent of size (small: 0.23 [0.09-0.60], p = 0.002; large: 0.30 [0.16-0.55], p < 0.001), whereas acute steroids favored resolution of large T2-lesions (1.75 [1.01-3.03], p = 0.046). Notably, 32/55 (58%) T2-lesions resolved without treatment.
Discussion: The high frequency of spontaneous T2-lesion resolution suggests that this represents MOGAD's natural history. The speed of T2-lesion resolution and influence of size, corticosteroids, and T1-hypointensity on this phenomenon gives insight into MOGAD pathogenesis.
© 2023 American Academy of Neurology.
Conflict of interest statement
L. Cacciaguerra received speaker and consultant honoraria from ACCMED, Roche, BMS Celgene, and Sanofi. V. Redenbaugh reports no disclosures. J.J. Chen served as consultant for Roche, Horizon, and UCB. P. Morris, E. Sechi, and S.B. Syc-Mazurek report no disclosures. A.S. Lopez-Chiriboga has served on advisory boards for Genentech and Horizon Therapeutics. J.-M. Tillema is associate editor for
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References
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- Otani T, Irioka T, Igarashi S, Kaneko K, Takahashi T, Yokota T. Self-remitting cerebral cortical encephalitis associated with myelin oligodendrocyte glycoprotein antibody mimicking acute viral encephalitis: a case report. Mult Scler Relat Disord. 2020;41:102033. doi:10.1016/j.msard.2020.102033 - DOI - PubMed
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