Egg donation is a technique done very frequently at CERAM due to the characteristics of the patients that come to our clinic looking for help to get pregnant (advanced age, premature menopause, women who had quimio or radio therapy, or women who have already done a fertility treatment with her own eggs but without success).
This technique consists in doing an IVF process with donor eggs. The donor eggs come from anonymous donors who are less than 30 years old. The donors have to pass the blood, psicological and physical tests that the law requires so that the donation is done with maximum security.
When is egg donation recommended?
The medical team at CERAM studies each case independently. The tests done to the patient are important to determine if egg donation is the best treatment for each case.
The women who are good candidate for egg donation are:
- Women who wish to get pregnant but are unable to produce their own eggs. This can be because of many reasons (no ovaries left, premature failure of the ovary functions, ovaries extraction, quimio/radio therapy treatments, menopause, etc.)
- Women who can produce their own eggs but they are not good quality eggs
- Couples who have gone through previous IVF treatments without success
- Women who could transmit a genetic disease to the child
Phases in egg donation treatment
An egg donation treatment consists of a series of steps during a time of 2 weeks.The process is the following:
- DONOR SELECTION AND SCHEDULING
- A donor is selected. She must be an anonymous woman, under 30 years old and with physical characteristics very similar to the woman who will receive the donated eggs
- We do the medical and psicological tests to the donor in order to guarantee that she is valid for the egg donation process
- A cycle is programmed both in the donor and in the patient so that the cycles are coordinated on both women. This will guarantee that the eggs are fresh the day of the fecundation.
- OVARIC STIMULATION OF THE DONOR
- The donor will be given medication (hormones) to stimulate the ovaries so that they produce multiple ovocytes per cycle.
- During this process we do ultrasound controls to the donor to monitor the evolution and growth of the ovocytes.
- EGG COLLECTION AND SPERM SAMPLE
- When the gynaecologist in reproduction observes that the eggs are mature, we do the egg collection using anesthesia
- The process takes about 15 minutes
- The men partner has to leave a sperm sample which will be used for the in vitro fertilization process
- LABORATORY – FERTILIZATION PROCESS
- In the laboratory the ovocytes and the spermatozoon are put together and they are stored inside an incubator so that they are in an atmosphere which favours the fertilization and embrionary development. About 85% of eggs are successfully fertilized at CERAM
- The embryos are monitored by the embryologist to control that they develope correctly during the next 3 to 5 days
- EMBRYO TRANSFER
- The embryo transfer to the patient will be done between the third and sixth day, with a maximum of 2 embryos transfered
- The embryos are introduced in the woman using a catheter through the vagina and they are placed in the uterin cavity
- We recommend the patient to rest for 24 hours after the transfer is done
- EMBRYO VITRIFICATION
- The remaining embryos are vitrified (frozen) in case they are needed in future cycles
- PREGNANCY TEST
- Between the 7th and 12th day after the transfer a blood extraction is done to confirm if there has been a successful pregnancy
With a donor egg treatment the patients age is not so decisive in the pregnancy rate. The number of embryos transfered does affect the success rate. The pregnancy success rate with egg donation treatments at CERAM is about 70% which is higher than the national average which is 50%.