PMID: 11641031Oct 20, 2001Paper

Ventriculo-vascular interaction in the normal development of the fetal circulation

Early Human Development
H M GardinerK Marsál

Abstract

To examine cardiovascular physiology in the healthy fetus during normal development. Twenty normal fetuses were studied longitudinally from 20 weeks to term. Serial echocardiography was performed, and arterial and venous diameter pulse wave characteristics and aortic pulse wave propagation velocity (PWV) were examined in the thoracic descending aorta (AoD) and inferior caval vein (IVC) using an ultrasonic phase-locked echo-tracking system. Statistical analyses included ANOVA, paired t-test and logistic regression where appropriate. Aortic PWV, maximum incremental and late decremental velocities increased with gestation while the relative pulse amplitude decreased, reflecting falling distal impedance. There was a linear increase in cardiac preload and relative pulse amplitude in the IVC with gestation that correlated significantly with the presence of end-diastolic flow in the pulmonary artery and improvement in right ventricular diastolic function. Non-invasive concurrent assessment of preload, ventricular function and impedance are possible in the fetus and may prove useful in the longitudinal study of fetal adaptation to pathophysiological changes.

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Citations

Oct 29, 2002·Ultrasound in Medicine & Biology·Helena GardinerKarel Marsál
Dec 7, 2002·Ultrasound in Medicine & Biology·Yasuyuki FujitaHitoo Nakano
Aug 8, 2001·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·H GardinerK Marsál
Jan 27, 2005·Paediatric and Perinatal Epidemiology·Nancy C Chescheir
Mar 23, 2011·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·M K NybergT Kiserud
Mar 23, 2013·American Journal of Obstetrics and Gynecology·Lisa W HowleyLisa K Hornberger
Dec 15, 2015·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·C WohlmuthH M Gardiner
Jun 17, 2006·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Jeroen P H M van den WijngaardMartin J C van Gemert
Dec 13, 2006·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Jeroen P H M van den WijngaardMartin J C van Gemert
Mar 10, 2011·Journal of Speech, Language, and Hearing Research : JSLHR·Anne van KleeckAmy Louise Schwarz

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