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Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model
Published on: April 7, 2023
Uterine factors and infertility
1Department of Obstetrics and Gynecology, Univerity of British Columbia, Vancouver, Canada. bsanders77@hotmail.com
The Journal of Reproductive Medicine
|May 6, 2006
Summary
Uterine factors like adhesions, septa, polyps, and myomas can impact fertility. Treating these conditions, particularly septate uterus and polyps, significantly improves pregnancy rates and reduces reproductive loss.
Area of Science:
- Reproductive Medicine
- Gynecologic Surgery
Background:
- Uterine abnormalities are potential causes of infertility and reproductive loss.
- Intrauterine adhesions, uterine septa, endometrial polyps, and uterine myomas are common uterine factors.
- Evidence linking these factors to infertility and the efficacy of their treatment requires synthesis.
Purpose of the Study:
- To review the literature on the association between uterine factors and infertility/reproductive loss.
- To ascertain the evidence supporting improved fertility following treatment of these abnormalities.
Main Methods:
- A MEDLINE search was conducted to identify relevant English-language publications.
- Literature review focused on intrauterine adhesions, uterine septa, endometrial polyps, and uterine myomas.
- Analysis of observational series and case studies on treatment outcomes.
Main Results:
- Intrauterine adhesions: limited evidence for infertility, but hysteroscopic division shows 32%-87% term pregnancy rates.
- Septate uterus: hysteroscopic metroplasty reduces spontaneous abortion from 91% to 17% and yields a 47% pregnancy rate.
- Endometrial polyps: hysteroscopic polypectomy shows a 78% pregnancy rate compared to 42% in controls.
- Uterine myomas: only those distorting the cavity impact fertility; myomectomy yields ~50% pregnancy rates.
Conclusions:
- Treatment of uterine septa and endometrial polyps demonstrates significant improvements in fertility outcomes.
- While evidence for intrauterine adhesions is less robust, treatment shows promising pregnancy rates.
- The impact of uterine myomas on fertility is controversial, with distortion of the cavity being a key factor.
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