© The Author 2006. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org
Letters to the editor |
The difference in pregnancy rates between elective single embryo transfer (SET) compared to double embryo transfer is dependent on the implantation rates of embryos being transferred. Using mathematical modeling to determine when SET becomes a viable option
School of Paediatrics and Reproductive Health, The University of Adelaide, Adelaide, South Australia 5001, Australia
1 To whom correspondence should be addressed. E-mail: jeremy.thompson@adelaide.edu.au
| The first 10% of the full text of this article appears below. |
Sir,
The article by van Montfoort et al. (2006)
concludes that undertaking single-embryo transfer in unselected patients will halve the pregnancy rate compared with double-embryo transfer. Their conclusion was derived following a randomized controlled trial (RCT) of single-embryo transfer versus double-embryo transfer. They also concluded that only in selected patient groups, which have a