In this situation, the transfer would be postponed until the woman has recovered, and, before this, the endometrium would be prepared. One of the reasons why a transfer can be canceled more frequently is when the woman is at risk of suffering an episode of ovarian hyperstimulation as a result of the stimulation treatment itself. When the embryos are frozen, either because they are leftover from previous treatment or because a fresh transfer could not be performed due to any contraindication, it is necessary to prepare the recipient's endometrium with this type of medication.Įndometrial preparation for embryo transfer Frozen transfer: also called deferred transfer.Egg donation IVF: Since the eggs come from a donor and not from the future mother, the mother must be administered estrogen and progesterone patches before the transfer.However, there are certain situations in which it is necessary to resort to the use of hormonal medication for endometrial preparation. This treatment is called luteal phase support. However, progesterone is administered vaginally from the day of insemination or embryo transfer as a booster to increase the chances of implantation.
In the case of artificial insemination or fresh embryo transfers, endometrial preparation is not necessary, since the ovarian stimulation process itself has already increased estradiol levels and these naturally act on the endometrium. As the woman's menstrual cycle advances, the levels of this hormone increase during the follicular phase and act on the endometrium modifying both its structure and its function, making it thicker and more receptive to the arrival of a possible embryo. Naturally, estrogens are produced by the follicles that are growing in each ovary. It is a process in which, through the administration of hormones, the endometrium reaches a receptive state that allows embryo implantation. Below are the two situations in which estrogen patches can be applied: Evopad for endometrial preparationĮndometrial preparation is part of many of the treatments carried out in assisted reproduction cycles. The purpose of this drug is to supply estrogen exogenously. Lesbian Artificial Insemination by Donor.Fertility Treatments for Lesbian Couples.Fertility Treatments for Single Mothers.What is Assisted Reproductive Technology?.
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