Motor outcomes after neonatal arterial ischemic stroke related to early MRI data in a prospective study

Pediatrics. 2010 Oct;126(4):912-8. doi: 10.1542/peds.2009-3611. Epub 2010 Sep 20.


Objective: We aimed to correlate early imaging data with motor outcomes in a large, homogeneous, cohort of infants with neonatal (diagnosed before 29 days of life) arterial ischemic stroke (AIS).

Methods: From a prospective cohort of 100 children with neonatal AIS, we analyzed the MRI studies performed within the 28 first days of life for 80 infants evaluated at 2 years of age. The relationships between infarction location and corticospinal tract (CST) involvement and motor outcomes were studied

Results: Seventy-three infarctions involved the middle cerebral artery (MCA) territory. Of those, 50 were superficial infarctions, 5 deep infarctions, and 18 mixed infarctions. The CST was involved in 24 cases. Nineteen patients with MCA infarctions (26% [95% confidence interval: 16%-34%]) developed hemiplegia. Mixed infarctions (P<.0001) and CST involvement (P<.0001) were highly predictive of hemiplegia. In contrast, 88% of children with isolated superficial MCA infarctions did not exhibit impairment.

Conclusions: Accurate prediction of motor outcomes can be obtained from early MRI scans after neonatal AIS. The absence of involvement of the CST resulted in normal motor development in 94% of cases. CST involvement resulted in congenital hemiplegia in 66% of cases.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cerebral Infarction / complications
  • Cerebral Infarction / diagnosis
  • Child, Preschool
  • Diffusion Magnetic Resonance Imaging
  • Hemiplegia / etiology*
  • Humans
  • Infant, Newborn
  • Infarction, Middle Cerebral Artery / complications
  • Magnetic Resonance Imaging*
  • Sensitivity and Specificity
  • Stroke / complications*
  • Stroke / diagnosis