Prevalence of Polycystic Ovarian Syndrome, Phenotypes and their Ovulation Response to Sequential Letrozole Dose Escalation among Infertile Women at a Tertiary Care Centre in Southern India.

Background: Women with polycystic ovarian syndrome (PCOS) often have anovulatory infertility requiring ovulation induction with letrozole.

Aims: This study aimed to determine the prevalence and phenotypic categorisation of infertile PCOS women and to assess ovulatory response and pregnancy rates of PCOS phenotypes with sequential letrozole dose escalation.

Study Setting And Design: This was a prospective observational study.

Comparative Study of Serum Progesterone Levels at the Time of Human Chorionic Gonadotropin Trigger and Ovum PickUp in Predicting Outcome in Fresh Fertilization Cycles.

Background: Studies have shown that premature rise of progesterone in controlled ovarian stimulation (COS) at the time of human chorionic gonadotropin (hCG) trigger is negatively associated with fertilization (IVF) outcome in fresh IVF cycles. Some authors have failed to demonstrate this. One large single centre retrospective cohort study has compared the pre and post hCG progesterone and observed that the ratio of the rise in progesterone could be a positive predictor.