The day of embryo transfer affects delivery rate, birth weights, female-to-male ratio, and monozygotic twin rate.

Objective: To compare the reproductive outcomes between the transfer of cleavage-stage embryos and blastocysts in two different age groups of patients. The reproductive capacity of women decreases by age. This decrease in capacity is directly related to a lower ovarian reserve and errors in the meiotic spindle of the oocyte, which increase chromosomal abnormalities and the formation of aneuploidy embryos with lower chances of implantation.

Impact of active female smoking on controlled ovarian stimulation in intracytoplasmic sperm insemination cycles.

Aim: To examine the impact of smoking among females on controlled ovarian stimulation (COS), at intra-cytoplasmatic sperm injection (ICSI) outcome.

Methods: A prospective analysis of outcomes of 876 women (fresh, non donor cycles) of which 559 (63.8%) were non-smokers, 317 (36.

Recombinant FSH versus HP-HMG for controled ovarian stimulation in intracitoplasmic sperm injection cycles.

Unlabelled: The aim of this study was to make a conclusion about aplicability of two differnet gonadothropins in COS (rFSH versus HP-hMG). The primary conclusion for the success as a result of COS are the mean number of retrived oocytes, mature oocytes, fertilization rate, mean number of quality embrios, and criopreverzed embrios. The secondary conclusions were clinical pregnancy rate and delivery rates.