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Related Experiment Video

Updated: Jan 27, 2026

A Pre-clinical Rat Model for the Study of Ischemia-reperfusion Injury in Reconstructive Microsurgery
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Does ischemia reperfusion affect fecundability in a rat model?

Pinar Calis, Nergis Erturk, Gurkan Bozdag

    Journal of the Chinese Medical Association : JCMA
    |March 21, 2019
    PubMed
    Summary

    Adnexal torsion significantly impacts fecundity, with a 70% pregnancy rate in controls versus 25% in torsion models. Further research is needed to understand fertility after detorsion treatment.

    Area of Science:

    • Gynecology
    • Reproductive Medicine
    • Surgical Emergencies

    Background:

    • Adnexal torsion is a common gynecological emergency (2.7%).
    • Organ-sparing strategies are favored due to observed follicular growth post-oophorectomy.
    • The impact of ischemia-reperfusion on ovarian function and fertility remains unclear.

    Purpose of the Study:

    • To evaluate the effect of ischemia-reperfusion injury from adnexal torsion on fecundability.
    • To assess fertility outcomes in a rat model following torsion and detorsion.

    Main Methods:

    • 30 female Wistar rats underwent right ovarian torsion for 8 or 24 hours.
    • Torsion was surgically corrected, with contralateral oophorectomy.
    • Control rats had unilateral oophorectomy; fertility was assessed via beta-human chorionic gonadotropin (hCG) levels.

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    Main Results:

    • Pregnancy rates were 20% (8-hour torsion) and 30% (24-hour torsion) versus 70% in controls (p=0.018).
    • Mean beta-hCG levels indicated lower pregnancy success in torsion groups.
    • No significant difference in fecundability was found between 8-hour and 24-hour torsion subgroups.

    Conclusions:

    • Adnexal torsion significantly reduces fertility, though statistical significance was not reached between torsion duration subgroups.
    • Patients treated for adnexal torsion require further investigation regarding their fertility potential.
    • Informed counseling on fecundability post-torsion treatment is crucial.