Number of Embryos for Transfer
In earlier days of IVF, there was a perception that success depended on the transfer of three or more embryos – even in younger patients. The program adheres to the standards of the American Society of Reproductive Medicine’s recommendations on numbers of embryos transferred. Because every ART couple wants a healthy baby, the staff at WRAMC-ART strive to minimize the risk of multiple births, which itself is all too often associated with pre-term delivery or newborn complications. The actual number of embryos transferred will be a joint decision with you, your physician, the embryologist and will be based on your particular case with the goal to give you a healthy baby! Based on the high likelihood of taking home a baby as a result of your ART cycle, in general, for women under age 38, most couples will receive one blastocyst transfer, or 2 ‘day 3’ embryos. For women aged 38 to 40, most couples will receive 2 embryos, and the decision for women over age 40 will depend on the specifics of your case. Moreover, embryo freezing or vitirification is currently much more efficient than it was a few years ago, further increasing the overall efficiency of IVF. Thus transfer of large numbers of embryos, if somewhat unavoidable in the past, is no longer justifiable or acceptable practice. The major hurdles to success after IVF remain implantation failure after embryo transfer and early pregnancy loss. Selection of viable embryos that establish successful pregnancies is another ongoing challenge to IVF practitioners.