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Related Experiment Videos

Fetal syphilis in the first trimester.

C Harter, K Benirschke

    American Journal of Obstetrics and Gynecology
    |April 1, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Early fetal syphilis evidence was found in two first-trimester pregnancies. This study examined products of conception for Treponema pallidum, challenging previous placental barrier theories.

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    Area of Science:

    • Obstetrics and Gynecology
    • Infectious Diseases
    • Fetal Medicine

    Background:

    • Syphilis infection during pregnancy poses risks to fetal development.
    • The traditional understanding suggested a placental barrier preventing early fetal infection.

    Purpose of the Study:

    • To investigate the presence of Treponema pallidum (syphilis pathogen) in first-trimester products of conception.
    • To evaluate the validity of the placental barrier theory in early pregnancy.

    Main Methods:

    • Analysis of products of conception from five patients with recent syphilitic infection.
    • Microscopic examination using silver and immunofluorescent stains for Treponema pallidum.

    Main Results:

    • Treponema pallidum was detected in two out of five first-trimester conceptuses (9 and 10 weeks' gestation).

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  • Evidence of early fetal syphilis infection was established.

    • Conclusions:

    • First-trimester fetal syphilis infection is possible.
    • The findings challenge the long-held placental barrier theory regarding syphilis transmission.