[Cryopreservation of embryos with the Cryogenetic apparatus]

For cryopreservation of human supernumerary embryos in our IVF programme we use a "Cryogenetic" computerised freezer. 1,2-propandiol and sucrose were used as cryoprotectant in the slow freezing/thawing protocol. In 20 transferred cycles we achieved 3 pregnancies. One is proceeds. Although the number of described cycles is low, the results are comparable with other centres. Our centre is the second one in the Czech Republic, which published data on a pregnancy after the transfer of cryopreserved embryos. Our Cryogenetic freezer is a high quality freezer suitable for gamete and embryo freezing.