title: Analysis of frontal sharp transients in 32 neonatal polysomnography in healthy fullterm newborns.
abstract: OBJECTIVE
  To identify and quantify frontal sharp transients found in neonatal polysomnography of healthy full term newborns in each stage of the sleep-wake cycle within the first 48 hours of life.
  
  
  METHODS
  The EEG from healthy term 32 newborns, legal age of two days and with adequate monitoring during pregnancy. Frontal sharp transients (FST) were quantified, according to synchronous or asynchronous, in each stage of the sleep-wake cycle. The results were compared by Kruskal-Wallis-test.
  
  
  RESULTS
  FST were counted individually in each sleep phase, being present during quiet sleep (QS) in all tracings. FST bilateral and synchronous and lateralized FST were more frequent during QS (p<0.05).
  
  
  CONCLUSIONS
  Lateralized FST were found mostly during quiet sleep. FST asynchronous in healthy full term newborns were normal and depended of FST density. FST unilateral appearance should not necessarily be considered abnormal as well.
authors.affiliation: Neurology Division, Internal Medicine Department, Hospital de Clínicas, University Federal of Paraná, Curitiba, PR, Brazil. anacrippa@uyfpr.br
authors.forename: Ana Chrystina
authors.initials: AC
authors.lastname: Crippa
authors.forename: Carlos Eduardo
authors.initials: CE
authors.lastname: Silvado
authors.forename: Luciano de
authors.initials: Ld
authors.lastname: Paola
authors.forename: Rosana H
authors.initials: RH
authors.lastname: Scola
authors.forename: Regina Maria
authors.initials: RM
authors.lastname: Fernandes
authors.forename: Lineu César
authors.initials: LC
authors.lastname: Werneck
mesh_terms: D001034:Apgar Score; D001145:Arrhythmias, Cardiac / Q000175:diagnosis; D001835:Body Weight; D004569:Electroencephalography; D005260:Female; D005625:Frontal Lobe / Q000502:physiology*; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn / Q000502:physiology*; D008297:Male; D017286:Polysomnography / Q000379:methods*; D012890:Sleep / Q000502:physiology*; D012894:Sleep Stages / Q000502:physiology; D018709:Statistics, Nonparametric