MARIANA YUMI MIYADAHIRA

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LIM/57 - Laboratório de Fisiologia Obstétrica, Hospital das Clínicas, Faculdade de Medicina

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  • article 2 Citação(ões) na Scopus
    Fetal growth according to different reference ranges in twin pregnancies with placental insufficiency
    (2015) NAKANO, Julianny Cavalheiro Nery; LIAO, Adolfo Wenjaw; BRIZOT, Maria de Lourdes; MIYADAHIRA, Mariana; FRANCISCO, Rossana Pulcineli Vieira; ZUGAIB, Marcelo
    The aim of this study was to compare different fetal growth curves in twin pregnancies with severe placental insufficiency. A retrospective cross-sectional analysis of 47 twin pregnancies with absent or reverse end diastolic flow in the umbilical artery of one fetus was performed. Pregnancies with major fetal abnormalities, twin-twin transfusion or three or more fetuses were not included. The estimated fetal weight zeta-scores were calculated for both fetuses (abnormal Doppler and co-twin) according to the following criteria: Hadlock, Liao and Araujo. The abdominal circumference zeta-scores were calculated according to Hadlock, Liao, Araujo, Ong and Stirrup. The mean estimates of the zeta-score values were calculated using generalized estimating equation regression analysis. The mean gestational age at inclusion was 27.4 +/- 4.7 weeks. The fetal sex and the interaction Doppler findings x criteria correlated significantly with the zeta-score values (p<0.001 for both variables). The estimated fetal weight mean zeta-scores (standard error) according to each criteria were as follows: Hadlock - abnormal Doppler: -2.98 (0.18), co-twin: -1.16 (0.15); Liao -abnormal Doppler: -2.89 (0.24), co-twin: -0.58 (0.19); and Araujo - abnormal Doppler: -3.05 (0.29), co-twin: -0.75 (0.18). Values for abdominal circumference were as follows: Hadlock -abnormal Doppler: -3.14 (0.26), co-twin: -1.13 (0.19); Liao -abnormal Doppler: -2.63 (0.27), co-twin: -0.42 (0.19); Araujo abnormal Doppler: -2.44 (0.22), co-twin: -0.71 (0.14); Ong -abnormal Doppler: -3.36 (0.34), co-twin: -1.48 (0.23); and Stirrup AD - -2.36 (0.14), co-twin: -1.18 (0.10). Sex-and plurality-specific charts should be used in the evaluation of fetal growth in twin pregnancies with placental insufficiency.