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Related Experiment Videos

Diaphragm insertion increases human vaginal oxygen tension.

G Wagner1, R J Levin, L Bohr

  • 1Panum Institute, University of Copenhagen, Denmark.

American Journal of Obstetrics and Gynecology
|May 1, 1988
PubMed
Summary

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Contraceptive diaphragm insertion significantly increases vaginal oxygen levels, creating an aerobic environment. Removal quickly returns oxygen tension to normal hypoxic levels, impacting vaginal microbial balance.

Area of Science:

  • Reproductive biology
  • Microbiology
  • Gynecology

Background:

  • The vaginal environment is typically hypoxic, influencing microbial ecosystems.
  • Contraceptive devices can alter the local physiological conditions within the vagina.

Purpose of the Study:

  • To investigate the impact of contraceptive diaphragm insertion on vaginal oxygen tension.
  • To understand the physiological changes induced by diaphragm use.

Main Methods:

  • Measurement of vaginal oxygen tension in five young women before and after diaphragm insertion.
  • Monitoring the rate of change in oxygen tension upon diaphragm removal.

Main Results:

  • Diaphragm insertion caused a significant increase in vaginal oxygen tension (131 +/- 13 mm Hg).
Keywords:
Barrier MethodsBiologyContraceptionContraceptive MethodsCytologic EffectsDenmarkDeveloped CountriesDiseasesEuropeExaminations And DiagnosesFamily PlanningGenital Effects, FemaleGenitaliaGenitalia, FemaleHistochemical EffectsInfectionsInsertionNorthern EuropePhysiologyResearch ReportScandinaviaToxic Shock SyndromeTreatmentUrogenital SystemVaginal Barrier MethodsVaginal Diaphragm

Related Experiment Videos

  • Oxygen tension decreased at a rate of 0.9 +/- 0.2 mm Hg/min after insertion.
  • Withdrawal of the diaphragm rapidly restored normal hypoxic vaginal oxygen tension (11 +/- 12 mm Hg).

    • Conclusions:

    • Contraceptive diaphragms create a transient aerobic vaginal environment.
    • This alteration in gaseous equilibrium may significantly affect vaginal microbial activity and homeostasis.