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Association of Chronic Active Multiple Sclerosis Lesions With Disability In Vivo

Association of Chronic Active Multiple Sclerosis Lesions With Disability In Vivo Key PointsQuestionAre chronic active multiple sclerosis (MS) lesions linked to patient disability and poor long-term lesion outcomes? FindingsIn this in vivo cohort study, the association was shown of chronic active/slowly expanding/smoldering MS lesions, which are detectable on high-field susceptibility-based magnetic resonance imaging (MRI) by their characteristic paramagnetic rims, with aggressive disease course and poor clinical outcomes despite approved disease-modifying therapy. Over time, rim lesions do not shrink slowly as other lesions do, but typically remain stable or even enlarge due to ongoing demyelination (confirmed pathologically in one of the patients who later came to autopsy). MeaningThese data provide in vivo evidence that inflammation in chronic active plaques is a prominent feature of MS that is linked to disability accumulation, suggesting a path forward for new susceptibility-based MRI clinical trials to test new types of treatment to ameliorate this process. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png JAMA Neurology American Medical Association

Association of Chronic Active Multiple Sclerosis Lesions With Disability In Vivo

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References (46)

Publisher
American Medical Association
Copyright
Copyright 2019 American Medical Association. All Rights Reserved.
ISSN
2168-6149
eISSN
2168-6157
DOI
10.1001/jamaneurol.2019.2399
Publisher site
See Article on Publisher Site

Abstract

Key PointsQuestionAre chronic active multiple sclerosis (MS) lesions linked to patient disability and poor long-term lesion outcomes? FindingsIn this in vivo cohort study, the association was shown of chronic active/slowly expanding/smoldering MS lesions, which are detectable on high-field susceptibility-based magnetic resonance imaging (MRI) by their characteristic paramagnetic rims, with aggressive disease course and poor clinical outcomes despite approved disease-modifying therapy. Over time, rim lesions do not shrink slowly as other lesions do, but typically remain stable or even enlarge due to ongoing demyelination (confirmed pathologically in one of the patients who later came to autopsy). MeaningThese data provide in vivo evidence that inflammation in chronic active plaques is a prominent feature of MS that is linked to disability accumulation, suggesting a path forward for new susceptibility-based MRI clinical trials to test new types of treatment to ameliorate this process.

Journal

JAMA NeurologyAmerican Medical Association

Published: Dec 12, 2019

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