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Related Experiment Videos

Vibroacoustic stimulation - does it really help?

H S Jamal1, T S Jamal

  • 1Department of Obstetrics and Gynecology, and Department of ENT, King Abdulaziz University Hospital, Jeddah, Saudi Arabia.

Annals of Saudi Medicine
|July 1, 1993
PubMed
Summary
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Fetal acoustic stimulation effectively assesses fetal well-being. Non-responsive fetuses, particularly those small for gestational age, indicate higher risk, warranting closer monitoring in perinatal medicine.

Area of Science:

  • Perinatal Medicine
  • Fetal Monitoring
  • Neonatal Health

Background:

  • Assessing fetal well-being in utero is crucial in perinatal medicine.
  • Current methods require enhancement for improved accuracy and predictive value.

Purpose of the Study:

  • To evaluate the efficacy of antenatal fetal heart rate response to acoustic stimulation as a test for fetal well-being.
  • To compare responses in low-risk versus high-risk pregnancies.

Main Methods:

  • Prospective study involving 160 antenatal patients, divided into low-risk (Group A, 80) and high-risk (Group B, 80).
  • Fetal acoustic stimulation using an artificial electronic larynx (Model 5C) was performed.
  • Antenatal fetal heart rate changes were measured and analyzed.

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Main Results:

  • In low-risk patients (Group A), acoustic stimulation yielded good fetal heart rate responses with no perinatal deaths.
  • In high-risk patients (Group B), 18.7% (15/80) showed no response to acoustic stimulation.
  • Among non-responsive high-risk fetuses, 13 were small for gestational age, with 4 perinatal deaths (2 stillbirths, 2 neonatal deaths). This contrasts with 8 small for gestational age fetuses among those who responded well.

Conclusions:

  • Fetal acoustic stimulation is a valuable tool for assessing fetal well-being antenatally.
  • A lack of response to acoustic stimulation in high-risk pregnancies is a significant indicator of adverse perinatal outcomes, especially in fetuses small for gestational age.
  • This method can help identify fetuses requiring closer monitoring and intervention.