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[Multiple-factor analysis of weight gain in very low birth weight infants]

Yi-jun Wu1, Jia-lin Yu, Rui Gu

  • 1Department of Neonatology, Chongqing Children's Hospital, Chongqing University of Medical Sciences, Chongqing 400014, China.

Zhonghua Er Ke Za Zhi = Chinese Journal of Pediatrics
|January 18, 2006
PubMed

Insights

Early feeding and adequate calorie and protein supply are crucial for weight gain in very low birth weight (VLBW) infants. Ensuring sufficient nutrition, especially for small for gestational age (SGA) infants, improves outcomes and reduces hospital stay.

Area of Science:

  • Neonatal nutrition
  • Pediatric gastroenterology
  • Growth and development in preterm infants

Context:

  • Very low birth weight (VLBW) infants face challenges in achieving adequate growth.
  • Nutritional strategies significantly impact the short- and long-term outcomes of VLBW infants.
  • Understanding factors influencing weight gain is critical for optimizing neonatal care.

Purpose:

  • To identify correlative factors associated with weight gain in very low birth weight (VLBW) infants.
  • To analyze the impact of feeding timing, caloric, and protein intake on infant growth.
  • To establish a predictive model for weight gain based on nutritional parameters.

Summary:

  • Retrospective analysis of 51 VLBW infants revealed that early feeding, adequate caloric intake (approx. 468 kJ/kg/day), and sufficient protein supply (approx. 2.18 g/kg/day) significantly correlate with improved weight gain.
  • Multivariate analysis identified caloric and protein supply as key predictors of weight gain, with a derived equation: Y (weight gain) = -6.426 + 0.120X(1) (caloric supply) + 3.737X(2) (protein supply).
  • Early feeding (by day 2.35) and higher caloric intake (approx. 468 kJ/kg/day) were associated with faster regaining of birth weight and shorter hospital stays compared to delayed feeding.

Impact:

  • Findings underscore the importance of timely nutritional interventions in VLBW infants, particularly for small for gestational age (SGA) and critically ill neonates.
  • Early initiation of enteral feeding, supplemented with parenteral nutrition when necessary, can enhance feeding tolerance and gastrointestinal maturation.
  • Optimized nutritional support can lead to improved growth velocity, reduced hospital stay duration, and better overall outcomes for VLBW infants.
Abstract

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