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The technique for human embryo transfer

J Leeton, A Trounson, D Jessup

    Fertility and Sterility
    |August 1, 1982
    PubMed
    Summary
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    This study analyzed 204 human embryo transfers (ETs) in in vitro fertilization (IVF). Open-end catheters showed higher success rates when excluding chemical pregnancies, suggesting procedural improvements for better IVF outcomes.

    Area of Science:

    • Reproductive Medicine
    • In Vitro Fertilization (IVF)

    Background:

    • Intracervical embryo transfer (ET) is a critical step in human in vitro fertilization (IVF).
    • Optimizing ET procedures is essential for improving pregnancy rates.

    Purpose of the Study:

    • To analyze the ease of transfer and pregnancy rates associated with different catheters during intracervical embryo transfers.
    • To identify factors influencing successful embryo transfer in IVF.

    Main Methods:

    • Analysis of 204 attempted intracervical embryo transfers (ETs) over 18 months.
    • Evaluation of various catheter types, including open-end and closed-end Teflon catheters.
    • Comparison of transfer difficulty and pregnancy rates between nulliparous and multiparous patients.

    Main Results:

    Keywords:
    CatheterClinical ResearchDemographic FactorsEquipment And SuppliesFertilityFertility MeasurementsGonadotropins, ChorionicIn VitroMultiparityNulliparityParityPopulationPopulation DynamicsPregnancyPregnancy RateReproductionResearch MethodologySurgeryTreatment

    Related Experiment Videos

    • Transfers were more difficult in nulliparous patients compared to multiparous patients.
    • Closed-end Teflon catheters facilitated passage through narrower cervical canals.
    • Overall pregnancy rate was 17%; however, excluding chemical pregnancies revealed higher success with open-end catheters.

    Conclusions:

    • Catheter type did not significantly impact overall pregnancy rates, but open-end catheters showed promise when excluding chemical pregnancies.
    • Patient parity and cervical canal characteristics influence embryo transfer ease.
    • The study informed the development of an improved routine embryo transfer procedure for IVF.