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Reference Echocardiographic Measurements in Very Low Birth Weight Preterm Infants.

C Calado1, C Collins1, S Drew1

  • 1Department of Pediatrics, Mercy Hospital for Women, Melbourne, Victoria, Australia.

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|August 7, 2018
PubMed
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Echocardiography reference values are now available for very low birth weight (VLBW) preterm infants. This study provides essential cardiac measurement data for VLBW infants, aiding neonatal care.

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Area of Science:

  • Neonatal cardiology
  • Pediatric echocardiography
  • Perinatology

Background:

  • Echocardiography is crucial in neonatal care, but reference data for premature infants, particularly very low birth weight (VLBW) infants, is scarce.
  • The cardiac physiology of premature infants differs significantly from that of full-term infants.

Purpose of the Study:

  • To establish reference values for echocardiographic cardiac measurements in VLBW preterm infants.
  • To address the lack of specific cardiac data for this vulnerable population.

Main Methods:

  • Retrospective observational study over 11 years.
  • Data collected from echocardiographic reports of preterm infants (gestational age ≤ 32 weeks, birth weight ≤ 1,500g) within the first week of life.
  • Analysis of 1,244 preterm infants.

Main Results:

  • Birth weight (BW) was identified as a suitable variable for correlating with cardiac measurements.
  • Reference values for seven cardiac measurements are proposed, presented in tables categorized by 100g weight subgroups.
  • The study utilized a large sample size of VLBW preterm infants.

Conclusions:

  • This study presents the largest known sample of VLBW preterm infants with echocardiographic data.
  • Provides practical, easy-to-use reference values for cardiac measurements via echocardiography.
  • Aims to assist both pediatric cardiologists and neonatologists in managing VLBW infants.