Comparison of protocols efficacy in poor responders: differences in oocytes/embryos competence with different protocols, a retrospective study.

At present, there is no agreement on poor ovarian response definition, and no definitive evidence that this prognosis can be changed by a specific protocol. Our data suggest that a flare-up protocol with a depot gonadotropin-releasing hormone (GnRH) agonist formulation gives higher total pregnancy and implantation rates than a GnRH antagonist, possibly by improving oocyte/embryo competence.

Greater implantation and pregnancy rates with vaginal progesterone in intracytoplasmic sperm injection but not in in vitro fertilization cycles: a retrospective study.

Objective: To compare the effectiveness of vaginal progesterone supplementation with intramuscular supplementation in assisted reproduction cycles.

Design: Retrospective study.

Setting: Physiopathology of Human Reproduction Unit, Pordenone, Italy, from July 2000 to June 2004.