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MS – Early Disease Activity Predicts Prognosis — SCE Neurology MCQ

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EasyMultiple Sclerosis & CNS InflammationMS – Early Disease Activity Predicts PrognosisSCE Neurology

A 35-year-old woman with MS and EDSS 2.0 asks about long-term disability prediction. Her neurologist mentions that early relapse frequency and EDSS progression in the first 5 years are important predictors. What does the evidence show about early disease course and long-term prognosis?

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Correct answer: E — Higher relapse frequency in the first 2–5 years and early disability accumulation (EDSS progression) are associated with worse long-term outcomes — this supports the 'treat early and effectively' strategy in MS

Multiple longitudinal studies (including the natural history data from the London Ontario cohort and modern treated cohorts) show that early disease activity predicts long-term disability. Specifically: (1) higher relapse rate in the first 2–5 years, (2) short inter-attack intervals, (3) early EDSS progression, (4) early spinal cord involvement, and (5) high MRI lesion load at diagnosis all predict worse long-term outcomes. This evidence supports the 'treat early and effectively' paradigm — early high-efficacy treatment may alter the long-term trajectory. A: Early course is highly predictive. C: MRI is one predictor among several. D: Age at onset is relevant but not the only factor. E: Sex has a modest effect.

Reference: NICE NG100 MS; ABN MS Guidelines; London Ontario Natural History Data