Comparison of Tamoxifen and Clomiphene Citrate for Ovulation Induction in Women with Polycystic Ovarian Syndrome: A Prospective Study.

Background: The purpose of this study was to compare the efficacy of tamoxifen and clomiphene citrate in induction of ovulation in women with PCOS and anovulation.

Methods: In this prospective cohort study, 104 women with PCOS and primary infertility were enrolled after fulfilling the inclusion and exclusion criteria. The patients were allocated in two groups; group A (n=54) received tamoxifen 40 once daily (Days 3-7) and group B (n=50) received clomiphene citrate 100 once daily (Days 3-7).

The Impact of Progesterone Level on Day Of hCG Injection in IVF Cycles on Clinical Pregnancy Rate.

Background: Premature progesterone rise (PPR) has long been implicated as contributing to implantation failure. Despite the use of gonadotropin-releasing hormone (GnRH) analogues, subtle increases in serum progesterone () levels beyond a threshold progesterone concentration were observed on the day of trigger in controlled ovarian hyperstimulation cycles.

Aims: The purpose of the study was to evaluate the incidence of PPR on the day of trigger in conventional IVF/ICSI cycles and its impact on clinical pregnancy rate.