[Relation between the resistance index obtained by the transfontanellar Doppler ultrasonography and the neurological development until the first year of life in term infants with mild or moderate hypoxic-ischaemic encephalopathy].
OBJECTIVE
To evaluate the relation between the resistance index (RI) obtained by transfontanellar Doppler ultrasonography, and the neurodevelopment until one year of life, at term newborns with mild or moderate hypoxic-ischaemic encephalopathy due to intrapartum asphyxia.


METHODS
20 term newborns, with mild or moderate hypoxic-ischemic encephalopathy, high values of resistance index in the first exam, and without cerebral morfologic abnormalities or other diseases. They were submitted to serial bimonthly transfontanellar Doppler ultrasonography, from the seventh day of life on, and monthly clinical neurodevelopment assessment until one year of life.


RESULTS
There was a progressive normalization of RI values until the last examination. In five cases there were clinical neurologic normalization in the neonatal period after the first Doppler exam. Fifteen infants presented neurologic abnormalities, with normalization after the second trimester of life.


CONCLUSIONS
There was a relation between the normal RI values with the normalization of the clinical assessment.
arcia
Maria Helena Martins
MH
Pósgraduanda do Programa de Pós-graduação em Ciências Médicas da Faculdade de Ciências Médicas, Médica neonatologistado Hospital Universitário Pedro Ernesto. mhelenamg@terra.com.br
Monteiro
Alexandra Maria Vieira
AM
Freire
Sergio Miranda
SM
D001034:Apgar Score; D001238:Asphyxia Neonatorum / Q000150:complications*; D002536:Cerebral Arteries / Q000000981:diagnostic imaging* / Q000503:physiopathology; D002657:Child Development / Q000502:physiology*; D005260:Female; D006801:Humans; D020925:Hypoxia-Ischemia, Brain / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology; D007231:Infant, Newborn; D008297:Male; D012720:Severity of Illness Index; D018608:Ultrasonography, Doppler / Q000379:methods; D014655:Vascular Resistance / Q000502:physiology*