title: [Electroencephalography in Creutzfeld-Jakob disease].
abstract: BACKGROUND
  The electroencephalogram is very useful in the diagnosis of probable Creutzfeldt-Jakob disease.
  
  
  METHODS
  It is considered that a typical pattern is formed of periodic sharp wave complexes, widely distributed (synchronously and symmetrically) over both cerebral hemispheres. The frequency of presentation is approximately 1/second. However during the course of the disease other patterns are seen, such as frontal intermittent rhythmical delta activity, a cyclical alternating pattern and a low output electroencephalogram.
  
  
  CONCLUSIONS
  Recognition of these patterns, their electroclinical correlation and serial polygraphic studies are very important to the reliability of the test.
authors.affiliation: Servicio de Neurofisiología Clínica, Hospital General de Castellón, España. jjoa@omc.telprof.es
authors.forename: J J
authors.initials: JJ
authors.lastname: Ortega-Albás
mesh_terms: D007562:Creutzfeldt-Jakob Syndrome / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004569:Electroencephalography; D006801:Humans; D010507:Periodicity