Abstract
Embryo transfer (ET) is an essential and critical step in assisted reproduction. We have previously described an ‘afterload’ method of embryo transfer using a co-axial technique and noted a trend toward increased pregnancy (P=0.06) compared to direct transfer with an Edward-Wallace catheter (Neithardt et al., 2005). Having observed a trend toward improvement in pregnancy rates in the smaller preliminary study (n=127), we now report a larger retrospective analysis to compare the ‘afterload’ method to the standard ET technique.
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