Blood pressure estimation in the human fetal descending aorta

@article{Struijk2007BloodPE,
  title={Blood pressure estimation in the human fetal descending aorta},
  author={Piet C. Struijk and V. J. Mathews and Thanasis Loupas and Patricia A. Stewart and Edward B. Clark and E. A. Steegers and Jury W. Wladimiroff},
  journal={Ultrasound in Obstetrics and Gynecology},
  year={2007},
  volume={32}
}
The objectives of this study were to estimate fetal blood pressure non‐invasively from two‐dimensional color Doppler‐derived aortic blood flow and diameter waveforms, and to compare the results with invasively derived human fetal blood pressures available from the literature. 

Ultrasound measurement of fetal arterial pulse pressure using phased‐tracking methods: A phantom study and clinical experience with antenatal corticosteroid therapy

This study aimed to compare the accuracy of fetal pulse pressure estimated with a vascular simulator with that obtained by a manometer (reference) and evaluate the pulse pressure in normal human

Assessing vascular characteristics of the fetal descending aorta: A feasibility study

It is demonstrated that it is possible and potentially useful to measure fetal abdominal aorta biometrics and biomechanical characteristics using conventional ultrasonography from 16 diabetic and non‐diabetic mothers.

A Computational Model of the Fetal Circulation to Quantify Blood Redistribution in Intrauterine Growth Restriction

A computational model of the fetal circulation was developed, including the key elements related to fetal blood redistribution and using measured cardiac outflow profiles to allow personalization, and supports that while MCA flow is mainly determined by a fall in brain resistance, the AoI is influenced by a balance between increased peripheral-placental and decreased cerebral resistances.

Measurement of Pulse Wave Velocity in Fetal Descending Aorta with Dual Doppler Method: a Preliminary Study

The PWV of the descending fetal aorta could be accurately and conveniently measured with a commercially marketed ultrasound machine, and PWV measurement with dual Doppler technique had ability to detect fetal cardio-vascular changes by ritodrine infusion.

Foetal aortic flow velocity waveforms in healthy and hypertensive pregnant women

Chronic stable hypertension in pregnancies with normal outcome, evidences an upward regular trend of foetal descending aorta pulsatility index that is similar to the normotensive condition.

Methods for prenatal assessment of fetal cardiac function

This review aims to provide a complete overview of the different ultrasound techniques that can be used for fetal cardiac function assessment and discusses their (theoretical) strengths and shortcomings.

Simulation of the cardiotocogram during labor : towards model-based understanding of fetal physiology

With the new model a more realistic FHR decrease is obtained during contraction-induced reduction of uterine blood ow, while the reduced complexity and improved physical basis facilitate interpretation of model results and thereby make the model more suitable for use as a research and educational tool.

Characterization of the hemodynamic wall shear stresses in human umbilical vessels from normal and intrauterine growth restricted pregnancies

Despite having reduced flow rate and vascular sizes, IUGR UAs had hemodynamic mechanical stress environments and trends that were similar to those in normal pregnancies, which suggested that endothelial dysfunction or abnormal mechanosensing was unlikely to be the cause of small vessels in IugR umbilical cords.
...

References

SHOWING 1-10 OF 35 REFERENCES

Fetal cardiac output, distribution to the placenta and impact of placental compromise

The aim was to determine the normal distribution of fetal cardiac output to the placenta during the second half of pregnancy, and to assess the changes imposed by growth restriction with various degrees of placental compromise.

Intracardiac pressures in the human fetus

Fetal cardiovascular pressure measurements in the normal fetus assist in understanding the fetal circulation, and provide a basis for the assessment of cases of congenital heart disease that may be amenable to intrauterine treatment.

Feto-maternal circulation: mathematical model and comparison with Doppler measurements.

Ventriculovascular physiology of the growth‐restricted fetus

  • H. GardinerJ. BrodszkiK. Maršál
  • Medicine
    Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology
  • 2001
To examine the mechanisms by which intrauterine growth restriction may influence later cardiovascular risk by comparing the ventriculovascular physiology of gestational age‐ and weight‐matched

Use of pulse pressure method for estimating total arterial compliance in vivo.

It is concluded that 60% of total arterial compliance resides in the proximal aorta, and when the inverse relationship between pressure and compliance is taken into account, the contribution of the proxies to the total arterials compliance is even more significant.

Fetal aortic diameter pulse wave response to changes in maternal position after membrane rupture

  • H. StaleG. Gennser
  • Medicine
    Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology
  • 1991
No significant changes were seen in the fetal pulse wave variables, and the absence of fetal hemodynamic changes possibly reflects the presence of a protective effect against I gravitational stress to the fetal cardiovascular system provided by the remaining volume of amniotic fluid and the abundant fetal extracellular water.

Chronic effects of maternal smoking on pulse waves in the fetal aorta

  • N. Kyrklund-BlombergJie HuG. Gennser
  • Medicine
    The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
  • 2006
Maternal smoking seems to promote the stiffening of the fetal aorta during gestation, as measured by pulse wave velocity and maximum incremental velocity, in relation to maternal smoking and gestational age.