Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Maternal bearing down efforts--another fetal risk?

G M Bassell, S G Humayun, G F Marx

    Obstetrics and Gynecology
    |July 1, 1980
    PubMed
    Summary

    Bearing down efforts during labor can reduce blood flow to the fetus. Avoiding these efforts, especially when the uterus is not displaced left, may protect at-risk fetuses by improving blood flow.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Complete recovery after near-fatal venous air embolism during cesarean section.

    International journal of obstetric anesthesia·2004
    Same author

    Lessons learned from the bupivacaine experience.

    International journal of obstetric anesthesia·2004
    Same author

    The effects of maternal position during induction of combined spinal-epidural anesthesia for cesarean delivery.

    Anesthesia and analgesia·1998
    Same author

    Cerebral hemodynamic response to female sex hormones in the rat.

    Microvascular research·1996
    Same author

    Acute respiratory distress in a parturient under effective epidural analgesia.

    Canadian journal of anaesthesia = Journal canadien d'anesthesie·1995
    Same author

    Optimization of fetal oxygenation.

    International journal of obstetric anesthesia·1995

    Area of Science:

    • Obstetrics and Gynecology
    • Maternal-Fetal Medicine
    • Cardiovascular Physiology in Pregnancy

    Background:

    • Labor involves physiological changes affecting maternal circulation.
    • Bearing down efforts are a key component of the second stage of labor.
    • Maternal blood pressure regulation is critical for uteroplacental blood flow.

    Purpose of the Study:

    • To investigate the impact of maternal bearing down efforts on maternal blood pressure.
    • To assess the influence of uterine position on these circulatory effects.
    • To determine the potential risks to fetal blood flow during labor exertions.

    Main Methods:

    • Prospective study design.
    • Involved 12 unmedicated pregnant women in the second stage of labor.
    • Monitored brachial and popliteal blood pressure during bearing down efforts with and without left uterine displacement.

    Main Results:

    • No inferior vena cava compression was observed.
    • Abdominal aortic compression, indicated by popliteal pressure fall, worsened with bearing down.
    • Left uterine displacement and cessation of bearing down alleviated aortic compression.

    Conclusions:

    • Bearing down efforts can compromise maternal aortic blood flow.
    • This may negatively impact uteroplacental and distal fetal circulation.
    • Avoiding strenuous bearing down may be beneficial for fetuses at risk.

    Related Experiment Videos