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Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction
Published on: June 29, 2013
Clinician performed ultrasound in fetal growth restriction: fetal, neonatal and pediatric aspects
A Sehgal1,2, F Crispi3, M R Skilton4
1Neonatologist, Monash Newborn, Monash Children's Hospital, Monash University, Melbourne, VIC, Australia.
Insights
Fetal growth restriction (FGR) impacts pregnancies, causing cardiac issues detectable via ultrasound. Early detection and monitoring using specific ultrasound parameters can identify risks and guide interventions for better outcomes.
Area of Science:
- Perinatal Medicine
- Cardiology
- Medical Imaging
Background:
- Fetal growth restriction (FGR) affects 7-10% of pregnancies.
- Cardiac compromise is observed in fetuses and neonates with FGR.
- Ultrasound plays a crucial role in assessing FGR-related cardiac and vascular changes.
Purpose of the Study:
- To review ultrasound parameters for assessing cardiac function and vascular health in FGR across different age groups.
- To highlight the predictive value of feto-placental parameters for perinatal outcomes and later hypertension.
- To discuss the clinical relevance of these parameters in intervention strategies.
Main Methods:
- Review of conventional and tissue Doppler imaging in fetal and neonatal FGR.
- Analysis of sonographic parameters in fetal life, early postnatal, and pediatric periods.
- Discussion of vascular imaging findings, including arterial stiffness and blood pressure.
Main Results:
- Fetal sonographic parameters predict adverse perinatal outcomes and later hypertension.
- Postnatal FGR infants show altered heart morphology and sub-clinical cardiac dysfunction.
- Vascular imaging reveals thickened, stiffer arteries and elevated blood pressure in FGR individuals, persisting into childhood.
Conclusions:
- Ultrasound parameters are vital for assessing FGR manifestations from fetal life through childhood.
- Point-of-care ultrasound aids clinicians in identifying sub-clinical FGR cardiac and vascular changes.
- These findings support the development and monitoring of targeted interventions for FGR.
Abstract:
Fetal growth restriction (FGR) affects 7-10% pregnancies. Conventional and tissue Doppler imaging has noted cardiac compromise during fetal and early neonatal periods in this cohort. In this article, we discuss the use of salient ultrasound parameters across age groups. During fetal life, certain feto-placental sonographic parameters have been linked to adverse perinatal outcomes and are predictive of later life hypertension. During the early postnatal period altered morphometry (hypertrophied and globular hearts) with sub-clinical impairment of cardiac function has been noted in both term and preterm infants with FGR. Vascular imaging has noted thickened and stiffer arteries in association with significantly elevated blood pressure. Similar findings in the pediatric age groups indicate persistence of these alterations, and have formed the basis of intervention studies. Assessment methodology and clinical relevance of these parameters, especially in designing and monitoring of intervention strategies is discussed. Frontline care givers (obstetricians and neonatologists) are increasingly using point of care ultrasound to discern these manifestations of FGR during the sub-clinical phase.
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