title: Postictal Todd's Paralysis Associated with Focal Cerebral Hypoperfusion on Magnetic Resonance Perfusion Studies.
abstract: BACKGROUND
  The exact underlying physiology of postictal motor deficits, known as Todd's paralysis, is not well understood and its vascular perfusion physiology is not well studied. Reversible postictal perfusion abnormalities have been sparsely described in the literature.
  
  
  METHODS
  We report abnormal brain magnetic resonance perfusion maps in a 9-year-old boy who presented with postictal left hemiparesis. This case correlates postictal hemispheric cerebral hypoperfusion with clinical evidence of Todd's paralysis.
  
  
  CONCLUSIONS
  Our case provides an insight into the potential pathophysiology mechanism underlying Todd's paralysis and the practicality of magnetic resonance perfusion studies in localizing an epileptogenic zone in the postictal patient.
authors.affiliation: Department of Medicine, Division of Neurology, Lehigh Valley Health Network, Allentown, PA.
authors.forename: Hussam A
authors.initials: HA
authors.lastname: Yacoub
authors.affiliation: Department of Medicine, Division of Neurology, Lehigh Valley Health Network, Allentown, PA.
authors.forename: Nathan
authors.initials: N
authors.lastname: Fenstermacher
authors.affiliation: Department of Medicine, Division of Neurology, Lehigh Valley Health Network, Allentown, PA.
authors.forename: John
authors.initials: J
authors.lastname: Castaldo
keywords: focal cerebral hypoperfusion; magnetic resonance; postictal Todd’s paralysis