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Time interval for preterm infant weight gain velocity calculation precision

Tanis R Fenton1,2, Thibault Senterre3, Ian J Griffin4

  • 1Department of Community Health Sciences, Institute of Public Health, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.

Archives of Disease in Childhood. Fetal and Neonatal Edition
|July 13, 2018
PubMed

Insights

Calculating infant weight gain velocity helps guide neonatal nutrition and fluid management. Longer calculation periods (5-7+ days) offer more precise and less variable results than shorter ones.

Area of Science:

  • Neonatal intensive care
  • Pediatric nutrition
  • Clinical biostatistics

Background:

  • Weight gain velocity is crucial for guiding nutrition and fluid management in neonatal intensive care units.
  • Accurate assessment of infant growth is essential for optimizing clinical outcomes.

Purpose of the Study:

  • To evaluate the precision and variability of weight gain velocity calculations over different time periods.
  • To determine the optimal duration for calculating weight gain velocity in neonates.

Main Methods:

  • Comparative analysis of weight gain velocity calculations.
  • Statistical assessment of variability and precision across various timeframes.

Main Results:

  • Weight gain velocity calculations over shorter periods exhibit higher responsiveness to management changes but lower precision.
  • Calculations spanning 5 to 7+ days demonstrate reduced variability and noise compared to shorter intervals.

Conclusions:

  • Longer-term weight gain velocity calculations (5-7+ days) provide more reliable data for neonatal nutrition and fluid management.
  • Utilizing longer calculation periods enhances the precision of growth assessment in the neonatal intensive care unit setting.

Keywords:
growthinfant feedingnutrition

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