title: EEG findings in patients with vascular parkinsonism.
abstract: OBJECTIVE
  To investigate whether the conventional and quantitative EEGs of patients with vascular parkinsonism (VP) differ from those of idiopathic Parkinson's disease (PD) patients.
  
  
  METHODS
  The EEGs of 13 patients with vascular parkinsonism and 14 patients with idiopathic Parkinson's disease were scored on a simple scale regarding aspects of conventional EEG variables. Alpha band power asymmetry and EEG slowing (increased delta and theta power) were calculated by the neurometrics method of quantitative EEG data evaluation.
  
  
  RESULTS
  Analysis of both conventional and quantitative EEG data shows that VP patients had significantly less EEG slowing than PD patients.
  
  
  CONCLUSIONS
  This study shows that the EEG in a group of patients with vascular parkinsonism differ from a patient group with idiopathic Parkinson's disease. Our results indicate that VP patients are not PD patients with subcortical vascular lesions, because then they would have had at least as much EEG slowing as PD patients.
authors.affiliation: Department of Neurology, University Hospital Nijmegen, The Netherlands.
authors.forename: J C
authors.initials: JC
authors.lastname: Zijlmans
authors.forename: J W
authors.initials: JW
authors.lastname: Pasman
authors.forename: M W
authors.initials: MW
authors.lastname: Horstink
authors.forename: D F
authors.initials: DF
authors.lastname: Stegeman
authors.forename: M A
authors.initials: MA
authors.lastname: van't Hof
authors.forename: D J
authors.initials: DJ
authors.lastname: Poortvliet
authors.forename: S L
authors.initials: SL
authors.lastname: Notermans
authors.forename: E J
authors.initials: EJ
authors.lastname: Jonkman
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D000978:Antiparkinson Agents / Q000627:therapeutic use; D002561:Cerebrovascular Disorders / Q000150:complications*; D003937:Diagnosis, Differential; D004569:Electroencephalography / Q000187:drug effects; D005260:Female; D005684:Gait; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use; D008297:Male; D010300:Parkinson Disease / Q000175:diagnosis; D010302:Parkinson Disease, Secondary / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology
chemical_list: D000978:Antiparkinson Agents; D007980:Levodopa