The impact of endometrial preparation on implantation following cryopreserved-thawed-embryo transfer.
The efficacy of three protocols of endometrial preparation (spontaneous cycles, A: artificial preparation, B; ovarian stimulation, C) for cryopreserved-thawed human embryo transfer (CT-ET). The implantation and clinical pregnancy rates per cycle in 236 women undergoing 381 consecutive CT-ETs were evaluated according to the endometrial preparation protocol. No statistically significant difference was found in implantation rates per embryo transfer (A = 5.6%, B = 5.6%, C = 4.6%) and clinical pregnancy rates per cycle (A = 16.9%, B = 16.5%, C = 15.6%) between the three endometrial preparation protocols used. In conclusion, the specific method of endometrial preparation for CT-ET had no significant impact upon the implantation rate.
Tanos
V
V
Department of Obstetrics and Gynecology, Hadassah-University Hospital, Jerusalem, Israel.
Friedler
S
S
Zajicek
G
G
Neiger
M
M
Lewin
A
A
Schenker
J G
JG
D000328:Adult; D006063:Chorionic Gonadotropin / Q000008:administration & dosage; D015925:Cryopreservation; D010064:Embryo Implantation / Q000502:physiology*; D004624:Embryo Transfer; D004717:Endometrium / Q000502:physiology*; D004958:Estradiol / Q000097:blood; D004967:Estrogens / Q000008:administration & dosage; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000031:analogs & derivatives; D006801:Humans; D007246:Infertility / Q000209:etiology / Q000628:therapy; D008596:Menotropins / Q000008:administration & dosage; D010298:Parity; D011247:Pregnancy; D011374:Progesterone / Q000097:blood
D006063:Chorionic Gonadotropin; D004967:Estrogens; D007987:Gonadotropin-Releasing Hormone; D011374:Progesterone; D004958:Estradiol; D008596:Menotropins