How to measure and monitor albuminuria in healthy toddlers?

OBJECTIVE:Urinary albumin:creatinine ratio (UACR) in first morning void (FMV) urine samples collected over three days is the recommended method for measuring and monitoring albuminuria in adults in the clinical setting. Such a guideline is not available for toddlers and young children. We tested sev...

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Main Authors: Sophie Marielle van den Belt, Valentina Gracchi, Dick de Zeeuw, Hiddo Jan Lambers Heerspink
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC6013108?pdf=render
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author Sophie Marielle van den Belt
Valentina Gracchi
Dick de Zeeuw
Hiddo Jan Lambers Heerspink
author_facet Sophie Marielle van den Belt
Valentina Gracchi
Dick de Zeeuw
Hiddo Jan Lambers Heerspink
author_sort Sophie Marielle van den Belt
collection DOAJ
description OBJECTIVE:Urinary albumin:creatinine ratio (UACR) in first morning void (FMV) urine samples collected over three days is the recommended method for measuring and monitoring albuminuria in adults in the clinical setting. Such a guideline is not available for toddlers and young children. We tested several urine collection strategies for albuminuria measurement in toddlers in a prospective observational study. MAIN OUTCOMES MEASURES:Both a FMV and a random daytime urine sample were collected on three consecutive days at week 0, 4, and 8 in toddlers aged 12-48 months. Intra-individual coefficients of variation (CV) of urinary albumin (UAC) and UACR were compared using only the first measurement and using all three measurements per time point. In addition, these were compared with published CV of adults. RESULTS:A total of 80 toddlers (mean age 26.6 months, 53% male) were included. Intra-individual CV of FMV samples appeared lower than with random samples. The intra-individual CV in UAC or UACR was smaller using multiple compared to single samples. The lowest intra-individual CV was observed when UAC was measured in FMV over three consecutive days (38.3%). CV of UAC was similar to values published for adults. However, UACR CV was considerably higher in toddlers. CONCLUSIONS:These data show that-in analogy with adult data-multiple first morning void urine samples should be preferred to single or random urine samples for establishing and monitoring albuminuria in toddlers. Further studies are needed to investigate why creatinine correction for differences in urine dilution is less effective in children.
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spelling doaj.art-0dd63d9c99b6495faf61e907278ddb4c2022-12-21T18:44:37ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01136e019930910.1371/journal.pone.0199309How to measure and monitor albuminuria in healthy toddlers?Sophie Marielle van den BeltValentina GracchiDick de ZeeuwHiddo Jan Lambers HeerspinkOBJECTIVE:Urinary albumin:creatinine ratio (UACR) in first morning void (FMV) urine samples collected over three days is the recommended method for measuring and monitoring albuminuria in adults in the clinical setting. Such a guideline is not available for toddlers and young children. We tested several urine collection strategies for albuminuria measurement in toddlers in a prospective observational study. MAIN OUTCOMES MEASURES:Both a FMV and a random daytime urine sample were collected on three consecutive days at week 0, 4, and 8 in toddlers aged 12-48 months. Intra-individual coefficients of variation (CV) of urinary albumin (UAC) and UACR were compared using only the first measurement and using all three measurements per time point. In addition, these were compared with published CV of adults. RESULTS:A total of 80 toddlers (mean age 26.6 months, 53% male) were included. Intra-individual CV of FMV samples appeared lower than with random samples. The intra-individual CV in UAC or UACR was smaller using multiple compared to single samples. The lowest intra-individual CV was observed when UAC was measured in FMV over three consecutive days (38.3%). CV of UAC was similar to values published for adults. However, UACR CV was considerably higher in toddlers. CONCLUSIONS:These data show that-in analogy with adult data-multiple first morning void urine samples should be preferred to single or random urine samples for establishing and monitoring albuminuria in toddlers. Further studies are needed to investigate why creatinine correction for differences in urine dilution is less effective in children.http://europepmc.org/articles/PMC6013108?pdf=render
spellingShingle Sophie Marielle van den Belt
Valentina Gracchi
Dick de Zeeuw
Hiddo Jan Lambers Heerspink
How to measure and monitor albuminuria in healthy toddlers?
PLoS ONE
title How to measure and monitor albuminuria in healthy toddlers?
title_full How to measure and monitor albuminuria in healthy toddlers?
title_fullStr How to measure and monitor albuminuria in healthy toddlers?
title_full_unstemmed How to measure and monitor albuminuria in healthy toddlers?
title_short How to measure and monitor albuminuria in healthy toddlers?
title_sort how to measure and monitor albuminuria in healthy toddlers
url http://europepmc.org/articles/PMC6013108?pdf=render
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