Journal
JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE
Volume 35, Issue 25, Pages 6593-6599Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14767058.2021.1918091
Keywords
Fetal growth restriction; small for gestational age; umbilical vein blood flow; maternal hemodynamics; systemic vascular resistance; cardiac output
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The study found that using QUV and maternal hemodynamics examination can accurately distinguish between SGA and FGR, with significant decrease in QUV and cQUV in early FGR, and lower maternal CO in both early and late FGR.
Objectives To improve identification of fetal growth restriction (FGR) by means of umbilical venous flow (QUV) and maternal hemodynamics, including systemic vascular resistance (SVR) and cardiac output (CO), in order to distinguish between FGR and SGA. Methods We enrolled 68 pregnancies (36 SGA, 8 early FGR and 24 late FGR) who underwent a complete fetal hemodynamic examination including QUV and a noninvasive maternal hemodynamics assessment by means of USCOM. Results In comparison with SGA, QUV and corrected for estimated fetal weight QUV (cQUV) were significantly lower in early and late-FGR. In addition, maternal CO was lower in early and late-FGR, while SVR was lower only in early-onset FGR. According to ROC analysis, cQUV centile (AUC 0.92, 0.72) was the best parameter for the prediction of SGA before and after 32 weeks, followed by SVR and CO. For all parameters, the prediction was always better in the case of early-onset FGR Conclusions UV flow and maternal hemodynamics examination are useful tools to accurately discern between SGA and FGR.
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