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Related Experiment Videos

Diagnostic considerations in intra-amniotic syphilis.

D D Glover, C A Winter, D Charles

    Sexually Transmitted Diseases
    |July 1, 1985
    PubMed
    Summary

    Amniotic fluid analysis revealed nonmotile spirochetes in a syphilis-infected pregnancy. While not recommended for routine screening, it offers insights into pregnancy syphilis biology.

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    Area of Science:

    • Obstetrics and Gynecology
    • Infectious Diseases
    • Neonatology

    Background:

    • Syphilis in pregnancy poses risks to both mother and fetus.
    • Amniotic fluid is infrequently utilized in diagnosing or monitoring pregnancy syphilis.

    Observation:

    • Amniotic fluid from a 30-week gestation pregnant woman with positive syphilis serology was analyzed.
    • Nonmotile spirochetes were observed in amniotic fluid via dark-field microscopy post-penicillin treatment.
    • Immunofluorescent staining confirmed the organism's identity as Treponema pallidum.

    Findings:

    • Penicillin levels in amniotic fluid were below 0.5 units/ml post-treatment.
    • The amniotic fluid tested positive on the Venereal Disease Research Laboratory (VDRL) test.
    • Elevated IgM concentration and lecithin to sphingomyelin ratio were noted.
    • Phosphatidyl inositol and phosphatidyl glycerol were present, with phosphatidyl glycerol disappearing post-treatment.

    Implications:

    • Amniotic fluid analysis may offer novel insights into the pathophysiology of syphilis during pregnancy.
    • This study does not support routine amniotic fluid examination for syphilis in pregnant women with reactive serologic tests.
    • Further research could explore the diagnostic and prognostic value of amniotic fluid biomarkers in congenital syphilis.

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