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Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction
Published on: June 29, 2013
Fetal Growth Restriction Before and After Birth
1University of Minnesota Medical School, Minneapolis, MN, USA.
Insights
Fetal growth restriction (FGR) hinders a fetus's growth potential, impacting childhood health. Early detection and management are crucial for better outcomes in affected neonates and children.
Area of Science:
- Obstetrics and Gynecology
- Neonatology
- Pediatric Health
Background:
- Fetal growth restriction (FGR), previously intrauterine growth restriction, is a condition where a fetus fails to reach its full growth potential.
- Early detection and management of FGR are critical due to its significant clinical implications throughout childhood.
- FGR is diagnosed via ultrasonography, identifying estimated fetal weight or abdominal circumference below the 10th percentile.
Purpose of the Study:
- To summarize the diagnostic criteria and clinical implications of fetal growth restriction.
- To highlight the importance of early detection and management of FGR for neonatal and childhood health.
- To discuss prevention strategies, delivery timing considerations, and long-term risks associated with FGR.
Main Methods:
- Diagnosis is based on formal ultrasonography measurements, including estimated fetal weight and abdominal circumference.
- Early-onset FGR is defined as diagnosis before 32 weeks' gestation.
- Management involves consultation with maternal-fetal medicine specialists to determine optimal delivery timing.
Main Results:
- Early-onset FGR is associated with a higher risk of adverse fetal outcomes.
- Aspirin, used for preeclampsia prevention in high-risk pregnancies, may reduce the incidence of FGR.
- Neonates with FGR face risks including feeding difficulties, glucose and temperature instability, and jaundice.
Conclusions:
- FGR necessitates careful monitoring and management due to potential adverse outcomes.
- Long-term risks for children affected by FGR include abnormal growth and later development of cardiac, metabolic, neurodevelopmental, reproductive, and psychiatric disorders.
- There are no definitive preventive measures, but aspirin may offer some benefit in high-risk cases.
Abstract:
Fetal growth restriction, previously called intrauterine growth restriction, is a condition in which a fetus does not achieve its full growth potential during pregnancy. Early detection and management of fetal growth restriction are essential because it has significant clinical implications in childhood. It is diagnosed by estimated fetal weight or abdominal circumference below the 10th percentile on formal ultrasonography. Early-onset fetal growth restriction is diagnosed before 32 weeks' gestation and has a higher risk of adverse fetal outcomes. There are no evidence-based measures for preventing fetal growth restriction; however, aspirin used for the prevention of preeclampsia in high-risk pregnancies may reduce the likelihood of developing it. Timing of delivery for pregnancies affected by growth restriction must be adjusted based on the risks of premature birth and ongoing gestation, and it is best determined in consultation with maternal-fetal medicine specialists. Neonates affected by fetal growth restriction are at risk of feeding difficulties, glucose instability, temperature instability, and jaundice. As these children age, they are at risk of abnormal growth patterns, as well as later cardiac, metabolic, neurodevelopmental, reproductive, and psychiatric disorders.
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