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Pediatric Radiology

Published in:

01-11-2014 | Original Article

Reference ranges of kidney dimensions in term newborns: sonographic measurements

Authors: Aydin Erdemir, Zelal Kahramaner, Bilal Arik, Gokmen Bilgili, Mehmet Tekin, Yeliz Genc

Published in: Pediatric Radiology | Issue 11/2014

Abstract

Background

Ultrasonographic measurement of kidney dimensions is important in evaluation of renal disease during the neonatal period, when renal abnormalities are common and renal size rapidly changes with age.

Objective

To determine the reference ranges of kidney dimensions in newborns and to provide a reference chart for daily practice.

Materials and methods

In this prospective study, kidney dimensions were evaluated in 385 healthy newborns with a gestational age ≥37 weeks. Each neonate seen at an obstetrics clinic and neonatal intensive care unit was examined with sonography within the first week of life. Relationships of all dimensions with gender, gestational age, height and weight were statistically analyzed.

Results

All dimensions of the kidneys were smaller in girls than in boys (P < 0.05). The dimensions of the left kidney were larger than those in the right kidney in both genders (P < 0.01). Longitudinal and anteroposterior dimensions of the right and left kidneys showed no correlation with the gestational age in either gender. The dimensions correlated with the height in boys (P < 0.01), while no correlation was seen between the dimensions and height in girls (P < 0.05). Weight had the best correlation with all dimensions in both genders.

Conclusion

The reference values of kidney lengths and diagrams from this study may be useful in the sonographic evaluation of kidneys in newborns.

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Title: Reference ranges of kidney dimensions in term newborns: sonographic measurements
Authors: Aydin Erdemir
Zelal Kahramaner
Bilal Arik
Gokmen Bilgili
Mehmet Tekin
Yeliz Genc
Publication date: 01-11-2014
Publisher: Springer Berlin Heidelberg
Published in: Pediatric Radiology / Issue 11/2014
Print ISSN: 0301-0449
Electronic ISSN: 1432-1998
DOI: https://doi.org/10.1007/s00247-014-3007-z

At a glance: The STEP trials

Springer Medicine

Reference ranges of kidney dimensions in term newborns: sonographic measurements

Abstract

Background

Objective

Materials and methods

Results

Conclusion

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Objective

Materials and methods

Results

Conclusion

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