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PURPOSE:  To investigate the effects of the antenatal administration of betamethasone on fetal Doppler and short term fetal heart rate variation (CTG-STV) in early growth restricted (FGR) fetuses. MATERIALS AND METHODS:  Post hoc analysis of data derived from the TRUFFLE study, a prospective, multicenter, randomized management trial of severe early onset FGR. Repeat Doppler and CTG-STV measurements between the last recording within 48 hours before the first dose of betamethasone (baseline value) and for 10 days after were evaluated. Multilevel analysis was performed to analyze the longitudinal course of the umbilico-cerebral ratio (UC ratio), the ductus venosus pulsatility index (DVPIV) and CTG-STV. RESULTS:  We included 115 fetuses. A significant increase from baseline in CTG-STV was found on day + 1 (p = 0.019) but no difference thereafter. The DVPIV was not significantly different from baseline in any of the 10 days following the first dose of betamethasone (p = 0.167). Multilevel analysis revealed that, over 10 days, the time elapsed from antenatal administration of betamethasone was significantly associated with a decrease in CTG-STV (p = 0.045) and an increase in the DVPIV (p = 0.001) and UC ratio (p 

Original publication

DOI

10.1055/a-0972-1098

Type

Journal article

Journal

Ultraschall Med

Publication Date

02/2021

Volume

42

Pages

56 - 64

Keywords

Betamethasone, Cardiotocography, Female, Fetal Growth Retardation, Fetal Heart, Fetus, Glucocorticoids, Heart Rate, Fetal, Humans, Pregnancy, Pregnancy Outcome, Prospective Studies, Ultrasonography, Prenatal