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Related Experiment Videos

Fetomaternal bleeding following diagnostic amniocentesis.

A S Lele, P J Carmody, M E Hurd

    Obstetrics and Gynecology
    |July 1, 1982
    PubMed
    Summary

    Alpha-fetoprotein (AFP) elevation in maternal blood is a sensitive indicator for detecting fetomaternal bleeding during amniocentesis. This aids in identifying Rh-negative patients needing anti-D immunoglobulin to prevent sensitization.

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    Area of Science:

    • Obstetrics and Gynecology
    • Fetal Medicine
    • Immunology

    Background:

    • Amniocentesis is a common prenatal diagnostic procedure.
    • Fetomaternal bleeding and trauma are known complications of amniocentesis.
    • Preventing Rh sensitization in Rh-negative mothers is crucial.

    Purpose of the Study:

    • To assess the efficacy of modified Kleihauer-Betke staining and alpha-fetoprotein (AFP) elevation for detecting fetomaternal bleeding.
    • To evaluate the utility of pre-amniocentesis ultrasound in reducing complications.
    • To determine the best method for identifying Rh-negative patients requiring intervention.

    Main Methods:

    • Comparison of modified Kleihauer-Betke staining and maternal blood AFP levels for detecting fetomaternal hemorrhage.

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  • Assessment of pre-amniocentesis ultrasound scanning to reduce bleeding and bloody taps.
  • Retrospective analysis of patient data.

    • Main Results:

    • Pre-amniocentesis ultrasound scanning was effective in reducing fetomaternal bleeding and bloody taps.
    • Elevated maternal serum AFP was a more sensitive marker for fetomaternal bleeding than modified Kleihauer-Betke staining.
    • Modified Kleihauer-Betke staining showed lower sensitivity in detecting fetomaternal bleeding.

    Conclusions:

    • Maternal serum alpha-fetoprotein is a sensitive indicator for detecting fetomaternal bleeding post-amniocentesis.
    • Routine screening for AFP elevation can help identify Rh-negative mothers at risk of sensitization.
    • This approach facilitates timely administration of anti-D immunoglobulin prophylaxis.