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Heart rate variability in the neonate and infant: analytical methods, physiological and clinical observations

E G Rosenstock1, Y Cassuto, E Zmora

  • 1Department of Life Sciences, Ben-Gurion University of Negev, Beersheva, Israel.

Acta Paediatrica (Oslo, Norway : 1992)
|July 30, 1999
PubMed

Insights

Heart rate variability (HRV) in infants reflects autonomic nervous system function, with reduced HRV indicating prematurity or illness. Standardized analysis methods are needed for reliable clinical use in neonates and infants.

Area of Science:

  • Physiology
  • Neonatal Medicine
  • Cardiovascular Research

Background:

  • Heart rate variability (HRV) is influenced by the autonomic nervous system.
  • HRV analysis in neonates and infants provides insights into autonomic cardiovascular control.
  • Prematurity and illness are associated with reduced HRV.

Purpose of the Study:

  • To review the current understanding of heart rate variability in neonatal and infant populations.
  • To highlight the significance of HRV in assessing autonomic function in early life.
  • To identify limitations in current HRV analysis methods for this demographic.

Main Methods:

  • Literature review of studies on heart rate variability in neonates and infants.
  • Analysis of reported findings on HRV in healthy versus sick or premature infants.
  • Examination of existing methodologies for HRV assessment.

Main Results:

  • Reduced heart rate variability is a consistent finding in premature and unhealthy infants.
  • Existing studies show valuable information on pathophysiological changes in autonomic control.
  • A lack of standardized analytical criteria hinders precise comparisons across studies.

Conclusions:

  • Heart rate variability is a sensitive indicator of autonomic nervous system modulation in infants.
  • Standardized analytical methods for HRV are crucial for accurate clinical interpretation.
  • Clinical application of HRV for neonatal and infant prognosis and therapy is currently premature due to methodological inconsistencies.

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