title: Change of pulsatility index of the fetal middle cerebral artery after auditory stimulation in no risk pregnancies and in pregnancies with gestational hypertension.
abstract: OBJECTIVE
  An aim was to determine the degree and the mode of variation of PI of middle cerebral artery in no risk pregnancies and in pregnancies with gestational hypertension, after the constant sound stimuli.
  
  
  METHODS
  Study included 343 patients divided in two groups. Group 1: low risk pregnancies and group 2: gestational hypertension. Ultrasound prenatal auditory screening was performed after the 27th week of gestation.
  
  
  RESULTS
  The percentage of fetuses with increase of cerebral blood flow was slightly higher in the pregnancies with hypertension.
  
  
  CONCLUSIONS
  An average change of PI of median cerebral artery was higher in this group.
authors.affiliation: Medical Faculty, University Belgrade , Belgrade , Serbia.
authors.forename: Snezana
authors.initials: S
authors.lastname: Plesinac
authors.forename: Svetlana
authors.initials: S
authors.lastname: Jankovic
authors.forename: Darko
authors.initials: D
authors.lastname: Plecas
authors.forename: Olga
authors.initials: O
authors.lastname: Antonovic
authors.forename: Tatijana
authors.initials: T
authors.lastname: Adamovic
authors.forename: Mirjana
authors.initials: M
authors.lastname: Sovilj
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods; D000328:Adult; D016022:Case-Control Studies; D005260:Female; D005333:Fetus / Q000098:blood supply*; D005865:Gestational Age; D034381:Hearing Loss / Q000175:diagnosis*; D006320:Hearing Tests; D006801:Humans; D046110:Hypertension, Pregnancy-Induced; D020768:Middle Cerebral Artery / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods; D011673:Pulsatile Flow / Q000502:physiology*; D018608:Ultrasonography, Doppler; D016216:Ultrasonography, Prenatal