Prevalence of white matter lesions and stroke in children with migraine

Soe Mar1, James E Kelly, Sara Isbell

  • 1From the Departments of Pediatric and Developmental Neurology, and Radiology, Washington University School of Medicine, St. Louis, MO.

Neurology
|September 18, 2013
PubMed
Abstract

Insights

White matter lesions (WMLs) are not more common in children with migraine, even those with aura, compared to controls. These findings suggest WMLs in pediatric migraine are benign and not linked to stroke risk.

Area of Science:

  • Neurology
  • Pediatric Neurology
  • Neuroimaging

Background:

  • Migraine is a common neurological disorder in children.
  • The presence and significance of white matter lesions (WMLs) in pediatric migraine patients require further investigation.
  • Understanding potential links between pediatric migraine and cerebrovascular changes like silent ischemic lesions or stroke is crucial.

Purpose of the Study:

  • To determine the prevalence of WMLs and infarcts in children experiencing migraine.
  • To assess whether pediatric migraine serves as a risk factor for silent ischemic lesions or stroke.

Main Methods:

  • Retrospective review of prospectively collected data from 1,008 pediatric patients with headache.
  • Analysis of MRI data from 926 patients diagnosed with migraine, focusing on 375 who underwent MRI scans.

Main Results:

  • Of 375 migraine patients with MRIs, 115 had abnormalities, including 39 with WMLs. Six percent of migraine patients had incidental WMLs without known neurovascular disease or risk factors.
  • WMLs were more prevalent in migraine with aura (10%) than without aura (4%), though not statistically significant compared to controls (4%).
  • Deep WMLs, primarily in frontal and parietal lobes, were more common than periventricular lesions; no infarct-like lesions were observed. WMLs were nonprogressive and not associated with migraine chronicity or frequency.

Conclusions:

  • WMLs in pediatric migraine patients, including those with aura, are not more prevalent than in control groups.
  • The observed WMLs appear benign and are not associated with an increased risk of stroke in this pediatric population.