Open AccessComparing thaw survival, implantation and live birth rates from cryopreserved zygotes, embryos and blastocysts
Author(s) -
Mary Ellen Pavone,
Joy Innes,
Jennifer HirshfeldCytron,
Ralph R. Kazer,
Junyi Zhang
Publication year - 2011
Publication title -
journal of human reproductive sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 31
eISSN - 0974-1208
pISSN - 1998-4766
DOI - 10.4103/0974-1208.82356
Subject(s) - zygote , cryopreservation , andrology , embryo , live birth , embryo cryopreservation , blastocyst , human fertilization , biology , context (archaeology) , in vitro fertilisation , embryo transfer , gynecology , survival rate , medicine , pregnancy , embryogenesis , anatomy , surgery , genetics , paleontology
Most in vitro fertilization (IVF) programs employ embryo cryopreservation to enhance pregnancies from a single ovarian stimulation. More embryos are created, some of which are not transferred to the uterus immediately, generating a need for improved cryopreservation protocols. One protocol may involve growing embryos to a further stage of development, allowing only embryos with proven developmental capabilities to be cryopreserved. Here we examined thaw survival, implantation and live birth rates of embryos cryopreserved at different stages.