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  • Title: The combination of computerized cardiotocography and amniotic fluid index for the prediction of neonatal acidemia at birth: a modified biophysical profile.
    Author: Piazze JJ, Anceschi MM, Ruozzi Berretta A, Vitali S, Maranghi L, Amici F, Cosmi EV.
    Journal: J Matern Fetal Med; 2001 Oct; 10(5):323-7. PubMed ID: 11730495.
    Abstract:
    OBJECTIVE: To study the combination of computerized cardiotocography (cCTG) and the amniotic fluid index (AFI) in the prediction of neonatal acidemia at birth. METHODS: A total of 89 singleton third-trimester high-risk pregnancies delivered by Cesarean section, with an AFI evaluated within 24 h from birth, and an antepartum cCTG performed within 6 h from delivery, were studied. The score was the sum of values for AFI (oligo/anhydramnios = 1, normal = 0) and cCTG (Dawes-Redman criteria, not met = 1, met = 0). The endpoint was to predict an abnormal neonatal outcome as defined by an umbilical artery pH of < or = 7.2. RESULTS: Fifteen neonates had an umbilical artery pH of < 7.2. The combination of cCTG + AFI score was able to predict pH values (< or = 7.20) with an OR = 2.83 (p < 0.02). The diagnostic accuracy of the combination of cCTG + AFI was as follows: sensitivity 80%, specificity 58%, positive predictive value 28%, negative predictive value 83%. COMMENT: We suggest that the cCTG + AFI score may be of value in the prediction of neonatal acidemia and help in the management of third-trimester high-risk pregnancies.
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