Embryo adoption – Embryotraining

This technique has similar indications to egg donation. The difference is that the embryo is already formed and vitrified in the embryo bank.

Patients decide to “adopt” donated embryos from other couples (Embryo Bank) or embryos formed by the gametes of an oocyte donor and sperm from the bank (see Egg Donation Program). Pregnancy rates are about 60%.

Embryo Adoption Technique:

A- Endometrial preparation of the recipient mother

Unlike other assisted reproduction treatments, the recipient woman performs a simple hormonal treatment for the proper preparation of the endometrium (cavity of the uterus where the future embryo will be implanted). Hormone treatment can be administered orally, vaginally or through transdermal patches and requires 1 or 2 ultrasound controls.

B- Embryo transfer:
It is performed on an outpatient basis and does not require any type of anesthesia. It consists of the introduction, with ultrasound guidance, of the embryo with a catheter through the cervix to deposit it approximately 1.5 cm from the uterine fundus.

Last update: 09/09/2014

References:

– Matorras R, Hernández J (eds): Study and treatment of the sterile couple: Recommendations of the Spanish Fertility Society, with the collaboration of the Spanish Association for the Study of Reproductive Biology, the Spanish Association of Andrology and the Spanish Society of Contraception. Adalia, Madrid 2007.

– 2008 Guidelines for gamete and embryo donation: a Practice Committee report. Practice Committee of American Society for Reproductive Medicine; Practice Committee of Society for Assisted Reproductive Technology. Fertil Steril. 2008 Nov;90(5 Suppl):S30-44.