Pregnancy after in vitro fertilization, cryopreservation, and embryo transfer

We reported on the first pregnancy achieved in the Erlangen IVF program after cryopreservation and embryo transfer. After hMG stimulation in the first treatment cycle, nine oocytes were retrieved by laparoscopy from a 31-year-old woman and three embryos transferred. Five other oocytes were fertilized and developed to four- to eight-cell embryos, which were subsequently cryopreserved. Transfer of these embryos two cycles later resulted in a singleton pregnancy and the birth of a healthy girl.