Basal follicle-stimulating hormone level and age affect the chance for and outcome of pre-embryo cryopreservation.
All IVF cycles in which subsequent transfers of thawed pre-embryos occurred were studied. Both age and basal (cycle day 3) FSH level are important determinants of the chance for cryopreservation and the performance of cryopreserved pre-embryos. Although there was no age or FSH level above which pregnancy with frozen pre-embryos was not possible, the chances clearly decline. Thus, consideration to transferring larger numbers of pre-embryos fresh should be given to women in the fifth decade and those with basal FSH > 15 IU/L.
Toner
J P
JP
Department of Obstetrics and Gynecology, Howard and Georgeanna Jones Institute for Reproductive Medicine, Eastern Virginia Medical School, Norfolk 23507.
Veeck
L L
LL
Muasher
S J
SJ
D000328:Adult; D015925:Cryopreservation; D004624:Embryo Transfer; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood*; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy
D005640:Follicle Stimulating Hormone