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[Fetal circulation and malaria]

P Arbeille1, G Carles, F Bousquet

  • 1INSERM U316, Département Médecine Nucléaire et Ultrasons, CHU Trousseau, Tours.

Journal De Gynecologie, Obstetrique Et Biologie De La Reproduction
|January 1, 1997
PubMed
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Doppler indices like the cerebro-placental ratio (CPR) and hypoxia index (HI) can predict fetal distress during pregnancy flare-ups. Abnormal CPR and elevated HI during malaria flare-ups indicate potential risks for fetal well-being.

Area of Science:

  • Obstetrics and Gynecology
  • Fetal Medicine
  • Maternal-Fetal Medicine

Background:

  • Pregnancy flare-ups can impact fetal well-being.
  • Assessing fetal vascular changes is crucial for predicting adverse outcomes.

Purpose of the Study:

  • To quantify fetal vascular changes during pregnancy flare-ups.
  • To evaluate Doppler indices for predicting acute fetal distress.

Main Methods:

  • Umbilical resistance (Rp), cerebral resistance (Rc), cerebro-placental ratio (CPR), and hypoxia index (HI) were calculated daily during flare-ups.
  • Twenty-three pregnancies were investigated.

Main Results:

  • During flare-ups, placental resistance increased, cerebral resistance decreased, CPR decreased, and HI increased.

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  • Abnormal CPR (<1) and elevated HI (>150) were associated with abnormal fetal heart rate and other adverse outcomes.
  • The combination of HI > 150 and CPR < 1 showed high sensitivity (80%) and specificity (84%) for predicting abnormal fetal heart rate.

    • Conclusions:

    • The minimum CPR and HI during malaria flare-ups can predict acute fetal distress.
    • Doppler indices offer valuable insights into fetal health during pregnancy complications.