BACKGROUND: The follicular-phase long GnRHa protocol is a common protocol in COH. This study mainly analyzed the recovery of FSH levels on the day of Gn initiation compared with basal FSH levels on the day of downregulation and studied the …
OBJECTIVE: To evaluate the dynamics of serum medroxyprogesterone acetate (MPA) concentrations and their influence on serum progesterone (P) levels and pregnancy outcomes in the progestin-primed ovarian stimulation (PPOS) protocol. A total o…
PURPOSE: Progestin-primed ovarian stimulation (PPOS) has been widely employed in in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) cycles. In recent years, letrozole (LE) combined with medroxyprogesterone acetate (MPA) has …
Millions of women worldwide are infertile due to gynecological disorders, including premature ovarian insufficiency, polycystic ovary syndrome, Asherman syndrome, endometrial atrophy, and fallopian tube obstruction. These conditions frequen…
OBJECTIVE: To explore the cycle characteristics and pregnancy outcomes of progestin-primed ovarian stimulation (PPOS) using fixed versus degressive doses of medroxyprogesterone acetate (MPA) in conjunction with letrozole (LE) in infertile w…
Endometriosis is a complex and enigmatic disease that arises from the interplay among multiple genetic and environmental factors. The defining feature of endometriosis is the deposition and growth of endometrial tissues at sites outside of …