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Renal-vertebral index in normal children

C Bacopoulos, M Papahatzi-Kalmadi, T Karpathios

Archives of Disease in Childhood

|May 1, 1981

Summary

The renal-vertebral index offers a simple way to measure kidney length in children. This study establishes normal index ranges for infants, preschoolers, and schoolchildren.

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Area of Science:

Pediatric Nephrology
Diagnostic Imaging
Biometry

Background:

Accurate renal length assessment is crucial for pediatric health monitoring.
Existing methods for evaluating kidney size in children can be complex or time-consuming.
A simple, reliable index is needed for routine clinical use.

Purpose of the Study:

To establish reference values for the renal-vertebral index in a large cohort of healthy children.
To assess the utility of the renal-vertebral index as a practical clinical tool for pediatric renal assessment.

Main Methods:

The renal-vertebral index was calculated for 822 normal children.
The study population ranged in age from 3 days to 14 years.
Data were analyzed to determine age-specific index ranges.

Main Results:

Normal renal-vertebral index ranges were defined for different pediatric age groups.
Infants (up to 1 year) showed an index of approximately 4-5.
Preschool and school-aged children had index ranges of 3.5-4.5 and 3.5-4, respectively.
No significant sex-based differences in the renal-vertebral index were observed.

Conclusions:

The renal-vertebral index is a straightforward and clinically applicable method for assessing pediatric renal length.
Established normal ranges provide a valuable reference for interpreting the renal-vertebral index in children.
This index can aid in the routine evaluation of kidney size in pediatric practice.

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