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Microprocessor-based long term cardiorespirography. II. Status evaluation in term and premature newborns
Journal of Perinatal Medicine
|January 1, 1983
Summary
Loss of heart rate variability in newborns indicates severe illness, particularly intracranial bleeding. Microprocessor cardiorespirography can screen for this condition in neonates.
Area of Science:
- Neonatal Medicine
- Cardiology
- Medical Technology
Background:
- Previous research noted reduced heart rate variability in critically ill neonates.
- Heart rate patterns in newborns are complex and influenced by various factors.
Purpose of the Study:
- To investigate the correlation between instantaneous heart rate patterns and neonatal health status.
- To evaluate the utility of microprocessor-based cardiorespirography for diagnosing neonatal conditions.
Main Methods:
- Studied 75 newborn infants (51 premature, 24 term) for 12 hours each using a microprocessor-based cardiorespirography system.
- Analyzed parameters including long time variability (LTV), short time variability (STV), and P-value.
- Compared heart rate variability metrics across different infant health statuses.
Main Results:
- Decreased LTV, STV, and P-values correlated with increased illness severity.
- Fixed heart rate became more prevalent in sicker infants.
- The most significant loss of heart rate variability was observed in infants with severe intracranial bleeding.
Conclusions:
- Microprocessor-based cardiorespirography is a potential screening tool for neonatal intracranial bleeding.
- LTV and silent oscillation type are effective parameters for diagnosing intracranial bleeding.
- Further research should incorporate transcutaneous oxygen tension measurements.