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Epileptic seizures in early-onset multiple sclerosis

Masoud Etemadifar1, Seyed-Hossein Abtahi, Nasim Tabrizi

  • 1Department of Neurology, Isfahan University of Medical Sciences, Isfahan, Iran.

Archives of Iranian Medicine
|May 31, 2012
PubMed

Insights

Early-onset multiple sclerosis (EOMS) patients in Iran show a significantly higher prevalence of epileptic seizures (8.5%) compared to the general multiple sclerosis (MS) population. This study highlights a crucial association between EOMS and epilepsy in this demographic.

Area of Science:

  • Neurology
  • Pediatric Neurology
  • Epidemiology

Background:

  • Early-onset multiple sclerosis (EOMS), diagnosed before age 16, accounts for a small percentage of multiple sclerosis (MS) cases.
  • Epileptic seizures are a known, though less common, comorbidity in multiple sclerosis.
  • Understanding comorbidities in EOMS is vital for comprehensive patient care and management.

Purpose of the Study:

  • To determine the frequency and clinical characteristics of epileptic seizures in Iranian patients with early-onset multiple sclerosis.
  • To compare the prevalence of epilepsy in EOMS patients versus the non-EOMS multiple sclerosis cohort.
  • To analyze the timing of epileptic seizures relative to MS onset in EOMS patients.

Main Methods:

  • Retrospective population-based study utilizing data from the Isfahan Multiple Sclerosis Society (IMSS) from April 2003 to July 2010.
  • Inclusion of 117 EOMS patients from a total cohort of 3522 MS patients.
  • Analysis of medical records to identify cases of epileptic seizures and their temporal relationship with MS onset.

Main Results:

  • The prevalence of epileptic seizures in the studied EOMS cohort was 8.5% (10 out of 117 patients).
  • This prevalence was significantly higher (P < 0.001) than in the non-EOMS cohort (2.0%, 71 out of 3405 patients).
  • Epileptic seizures occurred before MS onset in 2 patients, after MS onset in 7, and at MS onset in 1 patient.

Conclusions:

  • Iranian EOMS patients exhibit an excessively high prevalence of epileptic seizures, exceeding previously reported figures in large MS series.
  • The findings suggest a stronger association between epilepsy and early-onset multiple sclerosis in the Iranian population.
  • Further research is warranted to elucidate the underlying mechanisms and implications for clinical management of EOMS with epilepsy.

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