A single medium and sequential media are equally effective for the culture of human embryos to the blastocyst stage: a pilot study
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چکیده
Ovulation Induction and Oocyte Recovery Ovarian hyperstimulation was achieved using GnRH analogue (nafarelin acetate, Synarel®, Pfizer) along with human recombinant FSH (r-hFSH: Gonal-F®, MerckSerono) in a long down-regulation protocol. Starting gonadotrophin dose varied from 150-300 IU and was based on female age, body mass index, ovarian volume, basal FSH levels and the number of preantral follicles. Human chorionic gonadotrophin (hCG; Ovidrel®, MerckSerono) was administered when at least one follicle reached 18 mm in diameter on ultrasound scan. Oocytes were collected 34-36 hours after hCG administration under transvaginal ultrasound guidance.
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