Progesterone level at oocyte retrieval predicts in vitro fertilization success in a short-antagonist protocol: a prospective cohort study.

Objective: To evaluate the distribution of P levels on the day of oocyte retrieval as it relates to pregnancy outcome in an antagonist protocol, which may be at higher risk for elevated P levels.

Design: Prospective cohort study.

Setting: Academic IVF center.

Random-start gonadotropin-releasing hormone (GnRH) antagonist-treated cycles with GnRH agonist trigger for fertility preservation.

Objective: To describe our experience with random-start IVF with the use of GnRH agonist for final oocyte maturation, to reduce the risk of ovarian hyperstimulation syndrome.

Design: Case series.

Setting: University-based center for reproductive endocrinology and infertility.

Gonadotropin-releasing hormone agonist or human chorionic gonadotropin for final oocyte maturation in an oocyte donor program.

Objective: To compare leuprolide acetate to hCG as the trigger for final oocyte maturation in oocyte donor cycles.

Design: Retrospective review.

Setting: Academic IVF donor program.

GnRH agonist long protocol vs. a single 3-mg gnRH antagonist: a comparison of 2 protocols for pituitary down-regulation in oocyte donor-controlled ovarian hyperstimulation cycles.

Objective: To compare ovarian stimulation outcomes for 2 protocols of pituitary down-regulation in a group of fertile women.

Study Design: Retrospective outcome analysis of 35 healthy oocyte donors participating in a university-affiliated in vitro fertilization donor program from 1999 to 2004. Consecutive donor cycles were grouped according to the agent used for down-regulation (n = 27 GnRH agonist, n = 31 GnRH antagonist).