The study compares serum progesterone levels on transfer day among three methods of endometrial preparation for frozen embryo transfer (FET): spontaneous cycles, ovarian stimulation cycles, and artificial cycles.
Results showed that the ovarian stimulation group had significantly higher progesterone levels (29.47 ng/ml) compared to spontaneous (20.03 ng/ml) and artificial cycles (14.32 ng/ml), indicating a possible link to treatment methods.
Despite differences in progesterone levels, demographic factors and overall pregnancy outcomes (live birth rates and pregnancy loss rates) were largely similar across all three groups, suggesting further research is needed to assess the clinical implications of progesterone variations.
The study focused on assessing clinical pregnancy and live birth rates following Intra Cytoplasmic Sperm Injection (ICSI) using sperm retrieved from testicular biopsies in men with severe sperm abnormalities, particularly azoospermia.
Over the four-year period, 99 couples underwent a total of 164 ICSI cycles, resulting in 37% of fresh embryo transfers leading to clinical pregnancies and 35.4% resulting in live births.
The findings suggest that testicular sperm extraction paired with ICSI is a viable option for couples facing male infertility, allowing them to conceive using their own gametes.