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Glomerular filtration rate reference values in very preterm infants

Rachel Vieux1, Jean-Michel Hascoet, Dana Merdariu

  • 1Neonatal Department, Nancy-University, Nancy, France. r.vieux@maternite.chu-nancy.fr

Pediatrics
|April 7, 2010
PubMed

Insights

This study establishes crucial glomerular filtration rate (GFR) reference values for very preterm infants. These findings aid in precise drug dosing and fluid management for neonates with potential kidney function alterations.

Area of Science:

  • Neonatal Physiology
  • Pediatric Nephrology

Background:

  • Very preterm infants face a high risk of impaired kidney function.
  • Establishing age-specific glomerular filtration rate (GFR) normal ranges is vital for clinical management.
  • Updated GFR reference values for this population are currently lacking.

Purpose of the Study:

  • To determine GFR reference values in very preterm infants.
  • To provide essential data for clinical practice in neonatal intensive care units (NICUs).

Main Methods:

  • A multicenter, prospective cohort study involving 275 infants.
  • Glomerular clearance measured weekly for the first month of life.
  • Linear regression modeling and bootstrap validation used to establish reference values.

Main Results:

  • Median GFR reference values (mL/min per 1.73 m(2)) were determined for infants aged 27 to 31 weeks' gestation.
  • Values ranged from 7.9-30.3 on day 7 to 15.5-37.9 on day 28.
  • Percentiles (3rd, 10th, 50th, 90th, 97th) were calculated.

Conclusions:

  • The established GFR reference values are essential for NICUs.
  • These values facilitate accurate drug dose adjustments based on individual glomerular clearance.
  • They aid in identifying infants requiring closer monitoring for altered GFR and fluid management.
Abstract

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