The most common reason for embryos to fail implantation or to produce a healthy pregnancy is that they have an abnormal number of chromosomes. As many as 30 percent of fertilized human eggs have such abnormalities. We hope to improve the success rate of IVF by selecting embryos with the normal number of chromosomes to transfer into the uterus.
Traditionally in IVF procedures, doctors and embryologists visually inspect embryos and then decided to transfer those that appear morphologically healthy after 5-6 days of development. Many IVF centers transfer more than one embryo at a time, because many of them won’t result in a successful pregnancy. However, if multiple embryos do implant successfully it can be risky for both the mother and the fetus.
To reduce such risks our San Diego facility is transferring only a single embryo at Hanabusa IVF, and new genetic screening technologies are helping us ensure that we select the most viable and healthy one.