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Related Experiment Videos

Fetal blood drawing.

J C Hobbins, M J Mahoney

    Lancet (London, England)
    |July 19, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Researchers successfully obtained fetal blood samples for hemoglobin synthesis studies via endoscopic visualization. The procedure demonstrated minimal fetal blood loss and no immediate adverse effects in mothers or fetuses.

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    Area of Science:

    • Maternal-Fetal Medicine
    • Hematology
    • Fetal Physiology

    Background:

    • Accurate fetal blood sampling is crucial for diagnosing and managing various fetal conditions.
    • Previous methods for fetal blood collection were often invasive or yielded insufficient sample volumes.

    Purpose of the Study:

    • To evaluate the feasibility and safety of obtaining fetal blood samples from placental vessels using endoscopic visualization.
    • To assess the impact of this sampling method on fetal blood volume and maternal/fetal well-being.

    Main Methods:

    • Endoscopic visualization was employed to access placental vessels for blood collection in patients undergoing second-trimester abortion.
    • Fetal blood loss and blood volume depletion were quantified.
    • Maternal and fetal outcomes were monitored for short-term adverse effects.

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    Main Results:

    • Fetal blood samples were successfully obtained in 23 out of 26 attempted procedures.
    • Fetal blood loss ranged from 0.2 to 2.5 ml, with blood volume depletion between 0.5% and 15%.
    • No short-term adverse effects were observed in mothers or fetuses when the abortifacient injection was delayed post-procedure.

    Conclusions:

    • Endoscopic visualization provides a safe and effective method for obtaining fetal blood samples from placental vessels.
    • The procedure is associated with minimal fetal blood loss and no immediate complications.
    • This technique holds promise for advancing fetal research and diagnostics.