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Updated: May 23, 2026
Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction
Published on: June 29, 2013
Doppler assessment of the fetus with intrauterine growth restriction
Insights
Umbilical arterial Doppler studies in high-risk pregnancies with suspected intrauterine growth restriction (IUGR) reduce labor induction, cesarean delivery, and perinatal deaths. These Doppler assessments should begin once the fetus is viable and IUGR is suspected.
Area of Science:
- Perinatal Medicine
- Diagnostic Ultrasound
- Maternal-Fetal Medicine
Background:
- Intrauterine growth restriction (IUGR) is a significant concern in high-risk pregnancies.
- Accurate fetal assessment is crucial for managing IUGR and optimizing perinatal outcomes.
- Doppler ultrasound has emerged as a key tool in evaluating fetal well-being.
Purpose of the Study:
- To establish evidence-based guidelines for using Doppler studies in fetuses with IUGR.
- To evaluate the impact of Doppler assessment on peripartum outcomes in IUGR pregnancies.
- To determine the optimal role of various Doppler studies in managing IUGR.
Main Methods:
- Systematic review of PubMed and Cochrane Library for studies on IUGR and Doppler assessment (umbilical artery, middle cerebral artery, ductus venosus).
- Evaluation of study quality based on the highest level of evidence, adhering to US Preventive Task Force suggestions.
- Grading of recommendations based on synthesized evidence from randomized and quasi-randomized trials.
Main Results:
- Umbilical arterial Doppler assessment in high-risk IUGR pregnancies significantly reduced labor induction, cesarean delivery, and perinatal deaths (1.2% vs 1.7%).
- The use of umbilical arterial Doppler for antepartum surveillance is recommended once fetal viability and IUGR suspicion are established.
- Doppler studies of the ductus venosus and middle cerebral artery showed prognostic value but lacked evidence of improved outcomes from randomized trials.
Conclusions:
- Umbilical arterial Doppler assessment is a valuable tool for managing high-risk IUGR pregnancies, improving perinatal outcomes.
- Routine antepartum surveillance using umbilical artery Doppler should be implemented for suspected IUGR in viable fetuses.
- Doppler studies of vessels other than the umbilical artery in IUGR pregnancies should be limited to research settings due to insufficient evidence of clinical benefit.
Objective:
We sought to provide evidence-based guidelines for utilization of Doppler studies for fetuses with intrauterine growth restriction (IUGR).
Methods:
Relevant documents were identified using PubMed (US National Library of Medicine, 1983 through 2011) publications, written in English, which describe the peripartum outcomes of IUGR according to Doppler assessment of umbilical arterial, middle cerebral artery, and ductus venosus. Additionally, the Cochrane Library, organizational guidelines, and studies identified through review of the above were utilized to identify relevant articles. Consistent with US Preventive Task Force suggestions, references were evaluated for quality based on the highest level of evidence, and recommendations were graded.
Results And Recommendations:
Summary of randomized and quasirandomized studies indicates that, among high-risk pregnancies with suspected IUGR, the use of umbilical arterial Doppler assessment significantly decreases the likelihood of labor induction, cesarean delivery, and perinatal deaths (1.2% vs 1.7%; relative risk, 0.71; 95% confidence interval, 0.52-0.98). Antepartum surveillance with Doppler of the umbilical artery should be started when the fetus is viable and IUGR is suspected. Although Doppler studies of the ductus venous, middle cerebral artery, and other vessels have some prognostic value for IUGR fetuses, currently there is a lack of randomized trials showing benefit. Thus, Doppler studies of vessels other than the umbilical artery, as part of assessment of fetal well-being in pregnancies complicated by IUGR, should be reserved for research protocols.
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