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Related Experiment Videos

Embryo quality based on ovulation induction: defining the differences.

Catherine Racowsky1, Bogdan Orasanu, Miguel J Hinrichsen

  • 1Department of Obstetrics and Gynecology, Brigham and Women's Hospital, Harvard Medical School, Room 082, 75 Francis Street, Boston, MA 02115, USA. cracowsky@partners.org

Reproductive Biomedicine Online
|August 17, 2005
PubMed
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Recombinant human follicle-stimulating hormone (FSH) improved IVF outcomes compared to urinary FSH. This led to better embryo quality, higher implantation rates, and more embryos for freezing, enhancing assisted reproductive technology success.

Area of Science:

  • Reproductive Medicine
  • Endocrinology
  • In Vitro Fertilization (IVF)

Background:

  • Follicle-stimulating hormone (FSH) is crucial for ovarian stimulation in assisted reproductive technologies.
  • Both urinary-derived FSH and recombinant human FSH (rec-hFSH) are used, but their comparative efficacy on embryo quality and IVF outcomes requires further definition.

Purpose of the Study:

  • To compare the efficacy of rec-hFSH versus urinary FSH in ovarian stimulation for IVF.
  • To evaluate the impact of different FSH preparations on oocyte and embryo quality, implantation, and pregnancy rates.

Main Methods:

  • A retrospective analysis of 811 IVF cycles using rec-hFSH and 555 cycles using urinary FSH.
  • Ovarian stimulation response monitored via ultrasound and serum estradiol levels.

Related Experiment Videos

  • Embryo quality assessed by cell number and fragmentation; implantation and ongoing pregnancy rates compared.

    • Main Results:

    • Rec-hFSH treatment resulted in a higher percentage of mature oocytes.
    • Improved embryo cleavage rates and a greater number of embryos available for cryopreservation were observed with rec-hFSH.
    • Higher implantation rates were achieved in cycles stimulated with rec-hFSH compared to urinary FSH.

    Conclusions:

    • Oocyte and embryo quality are superior when using rec-hFSH for ovarian stimulation in IVF.
    • Rec-hFSH demonstrates improved reproductive outcomes, including higher implantation rates, compared to urinary FSH.