Prenatal diagnosis · 2007
Predicting adverse neonatal outcome in severe fetal compromise: a pivotal role for estimated fetal weight Z scores.
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Moreira de Sa Renato Augusto, Salomon Laurent J, Carvalho Paulo Roberto N, Lopes Laudelino Marques, Ville Yves
Аннотация
OBJECTIVE: To identify significant predictors for adverse neonatal outcome in severe by compromised fetuses.
METHODS: Consecutive premature fetuses at between 25 and 32 weeks' with severe placental insufficiency were examined prospectively. Inclusion criteria were: singletons; normal anatomy; abnormal umbilical artery Doppler pulsatility index; abnormal cerebroplacental ratio; middle cerebral artery pulsatility index (PI) <or=2 standard deviations. We considered as independent potential predicting variables: absent or reversed end diastolic flow in umbilical artery, abnormal ductus venosus S/A ratio, absent or reversed flow during atrial contraction in the ductus venosus, and estimated fetal weight (EFW) Z score. Outcome parameters were: neonatal mortality and severe neonatal morbidity (Periventricular-Intraventricular Hemorrhage grade 03 or 04, Retinopathy of Prematurity stage 3 or 4, Periventricular Leukomalacia or Broncopulmonary Dysplasia).
RESULTS: Univariate analysis for all potential predicting variables was performed. EFW Z score index showed the strongest association with mortality and there was no fetal death or Retinopathy of Prematurity in the group with EFW Z-score index below lower limit. There was no case of Cystic Periventricular Leukomalatia in these analyses. The area under receiver-operator characteristic curve was significant for EFW Z-score index.
CONCLUSION: Our study suggests that EFW Z score is the strongest predictor of adverse neonatal outcome in severely compromised fetuses.
METHODS: Consecutive premature fetuses at between 25 and 32 weeks' with severe placental insufficiency were examined prospectively. Inclusion criteria were: singletons; normal anatomy; abnormal umbilical artery Doppler pulsatility index; abnormal cerebroplacental ratio; middle cerebral artery pulsatility index (PI) <or=2 standard deviations. We considered as independent potential predicting variables: absent or reversed end diastolic flow in umbilical artery, abnormal ductus venosus S/A ratio, absent or reversed flow during atrial contraction in the ductus venosus, and estimated fetal weight (EFW) Z score. Outcome parameters were: neonatal mortality and severe neonatal morbidity (Periventricular-Intraventricular Hemorrhage grade 03 or 04, Retinopathy of Prematurity stage 3 or 4, Periventricular Leukomalacia or Broncopulmonary Dysplasia).
RESULTS: Univariate analysis for all potential predicting variables was performed. EFW Z score index showed the strongest association with mortality and there was no fetal death or Retinopathy of Prematurity in the group with EFW Z-score index below lower limit. There was no case of Cystic Periventricular Leukomalatia in these analyses. The area under receiver-operator characteristic curve was significant for EFW Z-score index.
CONCLUSION: Our study suggests that EFW Z score is the strongest predictor of adverse neonatal outcome in severely compromised fetuses.