Comparison of Doppler parameters of central versus intraparenchymal renal arteries in physiologically normal newborns

Stavel, Miroslav; Zibolen, Mirko; Kolarovszka, Hana; Murgaš, Dalibor

doi:10.1007/s00247-004-1189-5

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…All our values of peak flow velocity, S/D ratio, RI, and PI were not different with advancing of gestational age and birth weight. Similar to our results, Pokharel et al 18 and Stavel et al 19 showed no statistical differences between peak flow velocity and RI measured in renal arteries of 2 groups in the first 5 days of life. A decline of the RI in the renal artery from the last trimester of pregnancy to the sixth month of life was shown by Andriani et al 3 They examined 32 fetuses in the last trimester of pregnancy and 30 neonates aged 0 to 1 month.…”

Section: Discussionsupporting

confidence: 92%

Doppler Studies in Normal Kidneys of Preterm and Term Neonates

Yıldırım

Güngör

Cihangiroğlu

et al. 2005

Journal of Ultrasound in Medicine

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Section: Discussionsupporting

confidence: 92%

Doppler Studies in Normal Kidneys of Preterm and Term Neonates

Yıldırım

Güngör

Cihangiroğlu

et al. 2005

Journal of Ultrasound in Medicine

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“…7,14 Our results did not show any correlation between the parameters of renal vascular resistance and birth weight or weight deficit in SGA infants. Stavel et al 19 investigated AGA term newborns with Doppler sonography and, similar to Zibolen, 20 observed a decrease in RI values from the center to the periphery of the kidney. They also established reference values of Doppler parameters of renal circulation in healthy neonates.…”

Section: Discussionmentioning

confidence: 83%

Assessment of renal circulation in small for gestational age and appropriate for gestational age term newborns: A prospective study

Kolarovszka¹,

Zibolen²,

Stavel³

et al. 2007

J of Clinical Ultrasound

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Current and potential methods to assess kidney structure and morphology in term and preterm neonates

Staub

2023

The Anatomical Record

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After birth, the kidney structure in neonates adapt to the functional demands of extrauterine life. Nephrogenesis is complete in the third trimester, but glomeruli, tubuli, and vasculature mature with the rapidly increasing renal blood flow and glomerular filtration. In preterm infants, nephrogenesis remains incomplete and maturation is slower and may be aberrant. This structural and functional deficit has life‐long consequences: preterm born individuals are at higher risk for chronic kidney disease and arterial hypertension later in life. This review assembles the literature on existing and potential methods to visualize neonatal kidney structure and morphology and explore their potential to longitudinally document the developmental deviation after preterm birth. X‐rays with and without contrast, fluoroscopy and computed tomography (CT) involve relevant ionizing radiation exposure and, apart from CT, do not provide sufficient structural details. Ultrasound has evolved into a safe and noninvasive high‐resolution imaging method which is excellent for longitudinal observations. Doppler ultrasound modes can characterize and quantify blood flow to and through the kidneys. Microvascular flow imaging has opened new possibilities of visualizing previously unseen vascular structures. Recent advances in magnetic resonance imaging display renal structure and function in unprecedented detail, but are offset by the logistical challenges of the imaging procedure and limited experience with the new techniques in neonates. Kidney biopsies visualize structure histologically, but are too invasive and remain anecdotal in newborns. All the explored methods have predominantly been examined in term newborns and require further research on longitudinal structural observation in the kidneys of preterm infants.

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Comparison of Doppler parameters of central versus intraparenchymal renal arteries in physiologically normal newborns

Abstract: Physiological data are presented that are necessary for the correct interpretation of neonatal Doppler US.

Cited by 5 publications

References 7 publications

Doppler Studies in Normal Kidneys of Preterm and Term Neonates

Doppler Studies in Normal Kidneys of Preterm and Term Neonates

Assessment of renal circulation in small for gestational age and appropriate for gestational age term newborns: A prospective study

Current and potential methods to assess kidney structure and morphology in term and preterm neonates

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