%0 Journal Article
%T Compara£¿£¿o entre tr¨ºs escores embrion¨¢rios como fator progn¨®stico do sucesso em fertiliza£¿£¿o in vitro
%A Moura
%A Marcos Dias de
%A Oliveira
%A Vin¨ªcius Alves de
%A Sala
%A Maria Matheus de
%A Ferriani
%A Rui Alberto
%A Reis
%A Rosana Maria dos
%J Revista Brasileira de Ginecologia e Obstetr¨ªcia
%D 2003
%I Federa??o Brasileira das Sociedades de Ginecologia e Obstetr¨ªcia
%R 10.1590/S0100-72032003000300006
%X purpose: to evaluate three embryo scoring systems specific for 3-day embryos and to correlate them with positive in vitro fertilization outcome. method: retrospective study of the in vitro fertilization program of the university hospital, faculty of medicine of ribeir£¿o preto, university of s£¿o paulo. a total of 137 patients submitted to the transfer of 439 embryos were evaluated. the main outcomes measured were pregnancy and implantation rates. results: a significant difference in the three scoring systems was observed between pregnant (n=53) and non-pregnant (n=84) patients (p<0.0001). in the first embryo scoring system, in which cell number alone was used, higher pregnancy (70%) and implantation rates (42%) were observed when embryos with a mean blastomere number higher than 8 were transferred. scoring system 2, based on a total four-point score (cleavage stage, blastomere number, fragmentation and symmetry), showed increased pregnancy (52.8%) and implantation rates (31%) for scores above 2. scoring system 3, based on cell number and morphological criteria, also showed higher pregnancy and implantation rates with increasing average scores of the transferred embryos. conclusion: the three scoring systems assessed in 3-day embryos were positively correlated with pregnancy and implantation rates.
%K embryo score
%K in vitro fertilization
%K pregnancy rate
%K implantation rate.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-72032003000300006&lng=en&nrm=iso&tlng=en