Summary: IVF embryos whose cells have mixed chromosomal profiles -- one normal, another abnormal -- still have the potential to implant in the uterus and become a healthy pregnancy, according to a new study.

Does embryo quality affect implantation?

When good quality embryos are transferred, the implantation rate is higher and there is no difference in pregnancy rate. Double embryo transfers should be limited to patients with repeated implantation failure or repeated pregnancy loss.

Do abnormal embryos make it to blastocyst?

Conclusions: The embryos with chromosome abnormalities do develop to blastocyst. However, the blastocyst formation rate in chromosomally normal embryos is significantly higher than the abnormal embryos.