title: [Ischemic anoxic cerebral crises in children. Electrophysiological aspects].
abstract: BACKGROUND
  Ischemic anoxic cerebral crises are linked to cardio-inhibition in response to vagal hypersensitivity which causes cerebral ischemic.
  
  
  OBJECTIVE
  In this paper we proposed to describe the clinical and electrophysiological features seen during the ocular compression test.
  
  
  METHODS
  We studied 200 children with clinical findings suggesting ischemic anoxic cerebral crises with positive results on ocular compression testing.
  
  
  RESULTS
  The ocular compression test provoked signs and symptoms, on average, in between 48.5% and 62.5% of the patients; generalized hypotonia and loss of consciousness were the most frequent signs. We found that the presence of clinical changes depended on the duration of the pause in heartbeat. There was also an association between the duration of the pause in heartbeat and the electroencephalographic findings.
  
  
  CONCLUSIONS
  Identification of a state of vagal hypersensitivity is of considerable value in the positive differential diagnosis of cerebral crises in children, and of definite prognostic value.
authors.affiliation: Servicio de Neuropediatría, Hospital Pediátrico Universitario William Soler, La Habana, Cuba. pozo@infomed.sld.cu
authors.forename: A J
authors.initials: AJ
authors.lastname: Pozo-Alonso
authors.forename: D
authors.initials: D
authors.lastname: Pozo-Lauzán
authors.forename: G
authors.initials: G
authors.lastname: Alvarez-Flores
authors.forename: F
authors.initials: F
authors.lastname: Cathcart-Roca
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003389:Cranial Nerve Diseases / Q000150:complications / Q000503:physiopathology; D003937:Diagnosis, Differential; D004562:Electrocardiography; D004569:Electroencephalography; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D020925:Hypoxia-Ischemia, Brain / Q000175:diagnosis* / Q000209:etiology; D007429:Intraocular Pressure / Q000502:physiology; D009122:Muscle Hypertonia / Q000175:diagnosis; D009123:Muscle Hypotonia / Q000175:diagnosis; D012890:Sleep / Q000502:physiology; D013997:Time Factors; D014630:Vagus Nerve / Q000503:physiopathology