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Related Experiment Videos

Fetal heart sound analysis: a preliminary evaluation.

A Baskaran1, N Sivalingam

  • 1Department of Obstetrics and Gynaecology, Ipoh Hospital, Perak.

The Medical Journal of Malaysia
|March 1, 1996
PubMed
Summary

Fetal heart sound analysis can identify fetuses with intrauterine growth restriction (IUGR). Specific sound characteristics, like higher first heart sound frequency, differ significantly between IUGR and normal fetuses.

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Area of Science:

  • Obstetrics and Gynecology
  • Fetal Medicine
  • Biomedical Engineering

Background:

  • Intrauterine growth restriction (IUGR) affects fetal well-being.
  • Accurate antenatal detection of IUGR is crucial for timely intervention.
  • Current methods for monitoring fetal growth may have limitations.

Purpose of the Study:

  • To investigate the potential of fetal heart sound characteristics for identifying fetuses with IUGR.
  • To compare specific acoustic features of fetal heart sounds between IUGR and normal fetuses after 36 weeks of gestation.

Main Methods:

  • A preliminary evaluation compared 7 IUGR fetuses with 12 normal fetuses.
  • The Fetal Frequency Phonocardiogram instrument was developed for data acquisition.
  • A custom software program analyzed fetal heart sound characteristics.

Main Results:

  • Three significant differences (p < 0.01) were identified between IUGR and normal fetuses.
  • IUGR fetuses exhibited a higher frequency of the first heart sound.
  • The ratio of the first to second heart sound amplitude was higher in IUGR fetuses.
  • The ratio of time between the first and second heart sound to the cardiac cycle was shorter in IUGR fetuses.

Conclusions:

  • Fetal heart sound analysis shows promise as a non-invasive method for detecting IUGR.
  • This technique may aid in monitoring high-risk fetuses during the antenatal period.

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