caa a22 4500 445817267 CHVBK 20180317145232.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s10815-010-9511-7 doi (NATIONALLICENCE)springer-10.1007/s10815-010-9511-7 A shared egg donor program: which is the minimum number of oocytes to be allocated? [Elektronische Daten] [Demian Glujovsky, Marcelo Dominguez, Gabriel Fiszbajn, Sergio Papier, Mariano Lavolpe, Carlos Sueldo] Purpose: To evaluate which is the minimum number of oocytes to be allocated to each recipient in a shared egg donor program. Methods: We analyzed 953 recipients that received at least 4 metaphase II (MII) oocytes in the period 2006-2008. We retrospectively divided the recipients according to the number of MII oocytes actually received. Results: No statistically significant differences were found among the analyzed strata in clinical pregnancy rate (A:43.7%; B:45.6%; C:48.6%; D:45.5%; E:53%, P = NS) and miscarriage rate. However, the rate of top quality transferred embryos, and the embryo freezing rate were significantly higher among those recipients that received 7 or more mature eggs. Conclusions: After a large sample was analyzed, no significant differences in fresh embryo transfer outcome were encountered when a different number of oocytes was allocated. A minimum of 4 MII oocytes seems to achieve satisfactory pregnancy rates in our shared egg donor program. Springer Science+Business Media, LLC, 2010 Oocyte donation nationallicence Shared nationallicence Reproductive outcomes nationallicence Egg donor program nationallicence Low costs nationallicence Glujovsky Demian Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut Dominguez Marcelo Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut Fiszbajn Gabriel Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut Papier Sergio Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut Lavolpe Mariano Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut Sueldo Carlos Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut Journal of Assisted Reproduction and Genetics Springer US; http://www.springer-ny.com 28/3(2011-03-01), 263-267 1058-0468 28:3<263 2011 28 10815 https://doi.org/10.1007/s10815-010-9511-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10815-010-9511-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Glujovsky Demian Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Dominguez Marcelo Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Fiszbajn Gabriel Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Papier Sergio Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Lavolpe Mariano Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut NATIONALLICENCE 700 1- Sueldo Carlos Center for Studies in Gynecology and Reproduction (CEGYR), Buenos Aires, Argentina aut NATIONALLICENCE 773 0- Journal of Assisted Reproduction and Genetics Springer US; http://www.springer-ny.com 28/3(2011-03-01), 263-267 1058-0468 28:3<263 2011 28 10815 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer