Journal Article

Fetal growth restriction: current knowledge

Ana Carolina Rabachini Caetano, Carolina Pacheco Silva, Thalita Frutuoso Lobo, Vivian Macedo Gomes Marçal, Luciano Marcondes Machado Nardozza, Edward Araujo Júnior, Alberto Borges Peixoto, Perez Zamarian, Ana Cristina, Jaqueline Brandão Mazzola

2017

Overview

BackgroundFetal growth restriction (FGR) is a condition that affects 5–10% of pregnancies and is the second most common cause of perinatal mortality. This review presents the most recent knowledge on FGR and focuses on the etiology, classification, prediction, diagnosis, and management of the condition, as well as on its neurological complications.MethodsThe Pubmed, SCOPUS, and Embase databases were searched using the term “fetal growth restriction”.ResultsFetal growth restriction (FGR) may be classified as early or late depending on the time of diagnosis. Early FGR (<32 weeks) is associated with substantial alterations in placental implantation with elevated hypoxia, which requires cardiovascular adaptation. Perinatal morbidity and mortality rates are high. Late FGR (≥32 weeks) presents with slight deficiencies in placentation, which leads to mild hypoxia and requires little cardiovascular adaptation. Perinatal morbidity and mortality rates are lower. The diagnosis of FGR may be clinical; however, an arterial and venous Doppler ultrasound examination is essential for diagnosis and follow-up. There are currently no treatments to control FGR; the time at which pregnancy is interrupted is of vital importance for protecting both the mother and fetus.ConclusionEarly diagnosis of FGR is very important, because it enables the identification of the etiology of the condition and adequate monitoring of the fetal status, thereby minimizing risks of premature birth and intrauterine hypoxia.

• Publisher: Springer Nature B.V
• Subject: Health risk assessment / Hypoxia / Mortality / Prenatal development