Effect of estradiol levels after hCG trigger on embryo quality, implantation, and IVF outcome, using donor ovarian stimulation protocols

In this study, we aimed at delineating the possible effect of estradiol (E2) levels on day β-hCG administration ovary by analysingthe Embryo Score (ES) early 2, 44hrs post insemination. Oocyte donor ovarian stimulation protocols were thus used in order to avoid any counteractions E2 with endometrium. All oocytes microinjected and all embryo transfers fresh.E2 E2/oocyte correlated positively ES 2 development. contrast, do not appear significantly affect implantation clinical pregnancy rates. Furthermore, associated fast slowly dividing embryos compared “ideally” 2. corresponding “ideal” (E216) sonographically translated into 12 mature oocytes. Embryos gestational sac rates, as well lower spontaneous miscarriage comparison embryos. We propose that a) development, insemination, is a valuable prognostic marker quality b) an protocol may most likely be successful if more than are collected, i.e. exceed 3.309pg/ml or hCG administration.