Maternal serum soluble fms-like tyrosine kinase-1–to–placental growth factor ratio distinguishes growth-restricted from non–growth-restricted small-for-gestational-age fetusesAJOG Global Reports at a Glance

Autor: Prithi Rajiv, MD, Thomas Cade, MD, Jennifer Dean, MD, Gabriel Davis Jones, MD, Shaun P. Brennecke, MD, PhD
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: AJOG Global Reports, Vol 4, Iss 1, Pp 100302- (2024)
Druh dokumentu: article
ISSN: 2666-5778
DOI: 10.1016/j.xagr.2023.100302
Popis: BACKGROUND: Fetal growth restriction secondary to chronic placental insufficiency is a major cause of perinatal morbidity and mortality. A significant proportion of fetuses with fetal growth restriction are small for gestational age, defined as a birthweight of ≤10th percentile. However, not all small-for-gestational-age fetuses are growth restricted. Some are constitutionally small and otherwise healthy. It is important to distinguish between small-for-gestational-age fetuses with and without fetal growth restriction to ensure appropriate interventions in small-for-gestational-age fetuses with fetal growth restriction and to minimize unnecessary interventions in healthy small-for-gestational-age fetuses. The maternal serum ratio of soluble fms-like tyrosine kinase-1 and placental growth factor is an indicator of placental insufficiency in the latter half of pregnancy. As such, the soluble fms-like tyrosine kinase-1–to–placental growth factor ratio may be a clinically useful tool to distinguish between small-for-gestational-age fetuses with and without fetal growth restriction. OBJECTIVE: This study aimed to determine whether the soluble fms-like tyrosine kinase-1–to–placental growth factor ratio can distinguish between small-for-gestational-age fetuses with and without fetal growth restriction with a birthweight of ≤10th percentile. STUDY DESIGN: A retrospective audit of 233 singleton pregnancies delivering an infant with a birthweight of ≤10th percentile corrected for gestational age with an antenatal maternal serum soluble fms-like tyrosine kinase-1–to–placental growth factor result was performed. Fetal growth restriction was defined as a birthweight of ≤10th percentile with an umbilical artery pulsatility index of >95th percentile, fetal middle cerebral artery pulsatility index of
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