Normal and abnormal diameter pulse waveforms in the fetal inferior vena cava

Mori, Akira; Uchida, Noa; Inomo, Akifumi; Ishiguro, Yoko; Aoyama, Togo; Mikami, Mikio

doi:10.1002/pd.1655

Cited by 2 publications

(3 citation statements)

References 20 publications

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Section: Venous Doppler Measurements In Growth‐restricted Fetusesmentioning

confidence: 99%

“…Sonographic measurement of inferior vena cava wall movements (diameter pulse waveforms) have opened up new possibilities for evaluation of this vessel 94 . A low‐pulsatility waveform may reflect depressed myocardial function and indicate fetal cardiac dysfunction in utero 94 . However, larger longitudinal studies are needed to clarify all of the parameters involved for altering the inferior vena cava waveforms and to define the mode of change corresponding to the chronologically deteriorating fetal cardiac function.…”

Section: Venous Doppler Measurements In Growth‐restricted Fetusesmentioning

confidence: 99%

See 1 more Smart Citation

The Importance of Venous Doppler Velocimetry for Evaluation of Intrauterine Growth Restriction

Kaponis¹,

Harada²,

Makrydimas³

et al. 2011

Journal of Ultrasound in Medicine

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The management of growth-restricted fetuses requires accurate diagnosis to optimize the timing of delivery. Doppler velocimetry is the only noninvasive method for assessing the fetoplacental hemodynamic status. This review will give a critical overview of the current knowledge on fetal venous blood flow in pregnancies complicated by in-trauterine growth-restricted fetuses. Adaptation of the circulation in intrauterine growth-restricted fetuses is described. Normal and abnormal venous Doppler waveforms are presented. Correlations of abnormal waveforms with the presence of acidemia and perinatal outcomes are emphasized. Limitations of venous Doppler velocimetry for optimizing the time for delivery and the perinatal outcome are also presented.

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Section: Venous Doppler Measurements In Growth‐restricted Fetusesmentioning

confidence: 99%

Section: Venous Doppler Measurements In Growth‐restricted Fetusesmentioning

confidence: 99%

The Importance of Venous Doppler Velocimetry for Evaluation of Intrauterine Growth Restriction

Kaponis¹,

Harada²,

Makrydimas³

et al. 2011

Journal of Ultrasound in Medicine

View full text Add to dashboard Cite

show abstract

“…The ratio of reverse blood flow of peak A [13], which was the time integral of atrial systolic divided by the entire time integral of forward flow velocity, reflected the pressure gradient between the right atrium and right ventricle end-diastolic. The ratio of reverse blood flow in inferior vena cava depended on the ventricular compliance and right ventricular end-diastolic pressure [14]. It decreased with increasing gestational age, possibly due to the increased ventricular compliance and the decline in peripheral resistance.…”

Section: Discussionmentioning

confidence: 97%

The application of high definition flow imaging in fetal hemodynamics

Yh¹,

K²,

Xy³

et al. 2015

Clin. Exp. Obstet. Gynecol.

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Objective: This work aims to investigate the application of high definition flow imaging (HD-flow) in fetal hemodynamics, and establish reference range of hemodynamic parameters in fetal with different gestational ages. Materials and Methods: A thousand of normal pregnant women were divided into five groups: 18-22, 23-27, 28-32, 33-37, and 38-40 gestational weeks. Color Doppler flow imaging (CDFI) and HD-flow were adopted to display the heart structure and measure the blood flow velocity. The pulmonary vein display results were scored. The results of HD-flow and CDFI were compared. Results: The catheter peak velocity of fetal mitral, tricuspid, aortic, pulmonary artery, aortic arch, ductal arch, the inferior vena cava, pulmonary vein, and venous catheter increased continuously with the increase of gestational age, showing a linear correlation. HD-flow was superior to CDFI on the display of pulmonary vein in 18-22, 23-27, and 28-32 weeks (p < 0.05), but was not in 33-37 and 38-40 weeks. HD-flow was an accurate positioning method for the pulmonary veins. Conclusion: HD-flow can make accurate evaluation of fetal hemodynamics and the demonstration of low blood flow, such as pulmonary venous, is better than CDFI. Pulmonary veins can be accurately positioned with HD-flow. HD-flow can demonstrate the main blood vessels of the whole fetal circulation and can display the spatial relationship of the blood vessels. It is of important clinical significance in hemodynamic study.

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Normal and abnormal diameter pulse waveforms in the fetal inferior vena cava

Abstract: The low pulsatility waveform may indicate depressed myocardial function. Measuring the DPW provides a simple method for obtaining important information about fetal cardiac performance.

Cited by 2 publications

References 20 publications

The Importance of Venous Doppler Velocimetry for Evaluation of Intrauterine Growth Restriction

The Importance of Venous Doppler Velocimetry for Evaluation of Intrauterine Growth Restriction

The application of high definition flow imaging in fetal hemodynamics

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