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Coitus and chorioamnionitis: a prospective study

R L Naeye, S Ross

    Early Human Development
    |January 1, 1982
    PubMed
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    Coitus during pregnancy may lead to amniotic fluid infections. This study suggests a temporal link between intercourse, membrane inflammation, and subsequent amniotic fluid infection, increasing risks for premature birth.

    Area of Science:

    • Obstetrics and Gynecology
    • Maternal-Fetal Medicine
    • Infectious Diseases in Pregnancy

    Background:

    • Amniotic fluid infections are linked to coitus during pregnancy.
    • A causal relationship requires establishing a temporal sequence of events.

    Purpose of the Study:

    • To investigate the temporal relationship between coitus and the development of amniotic fluid infections.
    • To analyze the sequence from coitus to infection and subsequent pregnancy complications.

    Main Methods:

    • Analysis of 541 pregnancies.
    • Examined the timing of coitus relative to labor, delivery, and signs of infection.
    • Assessed chorioamnionitis, amniotic fluid infection markers (maternal neutrophils), and pregnancy outcomes.
    Keywords:
    AfricaAfrica South Of The SaharaBehaviorCondomDeveloping CountriesDiseasesEnglish Speaking AfricaFetal MembranesIncidenceInfectionsMeasurementPregnancy ComplicationsResearch MethodologySex BehaviorSouth AfricaSouthern Africa

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    Main Results:

    • Peak chorioamnionitis limited to extraplacental membranes occurred within 2 days of last coitus.
    • Infection spread to amniotic fluid within 4 days of coitus, indicated by neutrophil migration.
    • Premature delivery was 4x more frequent with recent coitus and amniotic fluid infection.
    • Spontaneous membrane rupture and inflammation were associated with recent coitus and infection.

    Conclusions:

    • Coitus may initiate a sequence leading to amniotic fluid infection.
    • Recent coitus is associated with an increased risk of chorioamnionitis and amniotic fluid infection.
    • Orgasm might further compromise already infected membranes, increasing rupture risk.