frozen embryo transfer step by step

frozen embryo transfer step by step

frozen embryo transfer step by step

what is frozen embryo transfer (FET) procedure?

  • Booking an FET cycle

When you decide to begin a frozen cycle, please contact our office and let us know. We will then review your records to ensure your pre-screening is up to date. If necessary, we will order any repeat screening tests. If appreciable time has passed since you last consulted with your doctor, we will schedule a follow-up visit with your doctor.

  • Preparing the lining of your uterus

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A FET cycle will take approximately 6 to 8 weeks. A cycle typically begins with an injection Prostap on approximately day 21 of your cycle to suppress the normal ovarian cycle. After the course of Prostap you will have a bleed and you will need a baseline assessment involving bloodwork and ultrasound. Depending on the test results, your doctor may instruct you to begin daily tablets of estrogen to build the uterine lining. After a designated period of time on the estrogen tablets, you will return for a transvaginal ultrasound lining check. If the lining check demonstrates that your hormone levels are appropriate and your endometrial lining has thickened, your doctor will likely instruct you to add vaginal pessaries of progesterone to your medication regimen. Your nurse will then confirm an FET date and you will come in for your transfer several days later. Estrogen and progesterone continue after the transfer, and through to the blood pregnancy test about 2 weeks later.

  • Embryo transfer

The embryo transfer is a simple procedure that only takes about 5 minutes to complete. There is no anaesthesia or recovery time needed. When your nurse arranges your transfer, she will notify you and provide instructions on when to arrive and how to prepare. You need to have a full bladder for the procedure as a full bladder ensures good visualization of the lining of the uterus and proper placement of the embryos. It's important to drink the specific amount of liquid recommended 30 to 40 minutes ahead of time. You will review your cycle with the doctor and the number of embryos recommended for transfer. Upon entering your procedure room, the embryologist will again confirm your last name and the number of embryos for transfer. The embryologist will load the transfer catheter in the embryology lab with the embryo(s) and then the doctor will insert the catheter into the uterus and push the embryo through with a small amount of fluid. An external abdominal ultrasound provides visual guidance via a monitor to the doctor throughout the procedure. Once the doctor transfers the embryo, he or she will slowly remove the catheter. Since the embryo is invisible to the naked eye, the embryologist will then examine the catheter under a microscope in the lab to ensure that the catheter did indeed release the embryo. The nurse will give you instructions for the following 2 weeks until it's time for the pregnancy test.

  • The pregnancy test

Two weeks after the embryo transfer, you will perform a pregnancy test. This test is frequently called a "beta" because it measures the beta chain portion of the hCG hormone emitted by the developing embryo. We let you do this test in the privacy of your own home using a urinary pregnancy test and you then let us know the outcome so we can plan the next steps.

 

10 common questions about frozen embryo transfer step by step

1When in your cycle do you do a frozen embryo transfer?
Steps Involved in FET Kalan and Winkler are dedicated to their patients and design treatment to each patient's specific needs and desires. The overall procedure of IVF and frozen embryo transfer generally takes about six to eight weeks. A frozen embryo transfer by itself requires about three weeks
2What is the success rate of frozen embryo transfer?
Any patient, no matter the amount of time between embryo freezing and thawing, can expect nearly the same potential for success as they experienced with the fresh IVF cycle that the frozen embryos came from. Women 35 years and younger have over a 60 percent chance of pregnancy per transfer
3How long does it take for a frozen embryo to implant?
So here are 10 tips to improve your implantation prospects after an IVF cycle. We mean it. Implantation takes place between 1 and 5 days after a blastocyst transfer. If you didn't have a day-5 transfer, your implantation window is 6 to 10 days after egg retrieval.
4Do you ovulate during a frozen embryo transfer?
Frozen Embryo Transfer and Desynchronization in IVF During the menstrual cycle, estrogen levels naturally peak just before ovulation. This rise in estrogen triggers ovulation and causes the ovaries to begin producing progesterone. Progesterone then triggers the development of the endometrial lining of the uterus
5Is Frozen Embryo Transfer better than fresh?
In concordance with research at CCRM, studies from around the world have shown that in vitro fertilization pregnancies following a frozen embryo transfer are more similar to natural conception pregnancies than fresh embryo transfer cycles resulting in: Increased implantation rates. Increased ongoing pregnancy rates.
6What happens in a frozen embryo transfer cycle?
A Frozen Embryo Transfer cycle is the process whereby a patient uses embryos frozen from a previous IVF cycle in a new cycle. It is performed in a unstimulated cycle and involves careful monitoring and preparation of the lining of the uterus (endometrium), ready for the transfer of frozen embryos
7Do frozen embryos take longer to implant?
According to the researchers, the success of frozen embryos can be explained by the fact that frozen embryos take longer than fresh embryos to implant in the uterus. This is important because it allows hormone levels in the uterus to return to normal before the embryo is implanted
8When should I start taking progesterone before FET?
That means maximal endometrial receptivity in a natural 28-day menstrual cycle is from day 19 to day 24. In most IVF clinics worldwide, the practice is to supplement progesterone for 3 days before transferring a cryopreserved day 3 embryo and for 5 days before transferring a cryopreserved day 5 blastocyst
9Can a frozen embryo split after transfer?
The prevalence of true zygotic splitting was 1.36%, and the researchers found that, compared to singleton pregnancies, using frozen-thawed embryos increased the risk of zygotic splitting embryos by 34%, maturing the blastocysts in the lab for a few days before embryo transfer increased the risk by 79%, and assisted
10Are FET more successful?
Consensus is that in most cases, FET success rates are at least as high as fresh embryo transfer success rates. For some women, FET success rates can actually be much higher than fresh embryo transfers. ... All frozen embryos are stored on site in our state-of-the-art ART lab, so they never have to leave the premises.

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