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Post-coital test in subfertile men.

G Ragni, M Ruspa, G Barattini

    Andrologia
    |March 1, 1983
    PubMed
    Summary
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    The post-coital test (PCT) is valuable for assessing borderline male infertility, offering insights into sperm-egg interaction in vivo. This in vivo fertility test complements semen analysis for borderline sperm parameters.

    Area of Science:

    • Reproductive Medicine
    • Andrology
    • Human Fertility

    Background:

    • Borderline spermiograms, characterized by moderate oligoasthenozoospermia or asthenozoospermia, present diagnostic challenges in predicting male fertility potential.
    • Standard semen analysis alone may not fully capture the in vivo fertilizing capacity of semen with modest sperm dysspermia.

    Purpose of the Study:

    • To evaluate the efficacy of the post-coital test (PCT) in assessing the in vivo behavior of semen in men with borderline sperm parameters.
    • To determine the correlation between PCT results and semen quality classifications using WHO and Kremer criteria.

    Main Methods:

    • Twenty-two male patients with borderline spermiograms (sperm count 10-20 million/ml, 20-40% motility) underwent the post-coital test (PCT).
    • Female partners had normal reproductive health, and PCTs were performed during optimal cervical mucus conditions (score 12.2-12.3) and physiological pH (7.25-7.30).

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  • Semen samples were classified using World Health Organization (WHO) and Kremer criteria.

    • Main Results:

    • Positive PCT results varied significantly based on classification criteria: 6.75% for asthenozoospermia and 10% for oligozoospermia (WHO criteria).
    • Using Kremer's criteria, positive PCT results increased to 37.5% for asthenozoospermia and 40% for oligozoospermia.
    • Cervical mucus properties and pH were identified as significant factors influencing PCT outcomes.

    Conclusions:

    • The PCT is a useful in vivo test for evaluating borderline male factor infertility, providing a more comprehensive assessment than semen analysis alone.
    • The study highlights the importance of considering in vivo functional tests to predict fertility potential in cases of borderline semen parameters.
    • Optimizing conditions for PCT, such as favorable cervical mucus and appropriate pH, is crucial for accurate interpretation of results.