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Multiple sclerosis-from probable to definite diagnosis: a 7-year prospective study.
1Multiple Sclerosis Center, Sheba Medical Center, Tel Hashomer 52621, Israel. achiron@post.tau.ac.il.
Archives of Neurology
|July 13, 2000
Summary
Most patients diagnosed with probable multiple sclerosis (MS) and showing brain lesions on MRI rapidly progress to clinically definite MS within a year. Motor symptoms at onset predict this fast progression.
Area of Science:
- Neurology
- Neuroimmunology
- Clinical Neuroscience
Background:
- Multiple sclerosis (MS) diagnosis relies on clinical progression from initial symptoms.
- Early identification of rapid MS progression is crucial for timely intervention.
Purpose of the Study:
- To determine the rate of conversion from probable to clinically definite multiple sclerosis (MS).
- To identify predictors of rapid MS progression within one year of initial presentation.
Main Methods:
- A 7-year prospective study involving 163 patients with a first neurological episode suggestive of MS.
- All patients underwent brain MRI showing at least 3 demyelinating lesions at onset.
- Analysis of demographic and clinical parameters to identify rapid progression predictors.
Main Results:
- 83.4% of patients progressed to clinically definite MS within the follow-up period (mean 42 months).
- Over half (57.6%) of those progressing to definite MS did so within 1 year.
- Motor involvement at onset was the sole clinical predictor of rapid progression; polysymptomatic presentation and higher disability scores also correlated with faster progression.
Conclusions:
- The majority of patients with probable MS and indicative MRI findings experience rapid progression to clinically definite MS.
- Early clinical signs like motor involvement are key indicators for rapid disease progression.