Frozen Embryo Transfer

Center for Reproductive Health

Frozen Embryo Transfer (FET)

A Frozen Embryo Transfer (FET) is a type of IVF cycle where previously cryopreserved (frozen) embryos from a prior IVF cycle are thawed and transferred into the uterus. This process is becoming increasingly popular due to its higher success rates and improved outcomes compared to fresh embryo transfers.

Benefits of Frozen Embryo Transfer

1 - Higher Success Rates

FET often results in higher pregnancy and live birth rates compared to fresh embryo transfers. By allowing the body to recover from ovarian stimulation, FET gives the uterus more time to reach an optimal state for implantation.

2 - Genetic Testing Opportunities

FET allows time for genetic testing, such as Preimplantation Genetic Testing for Aneuploidy (PGT-A), to identify embryos with the best chance of successful implantation. This improves outcomes by selecting only chromosomally normal embryos

3 - Flexibility and Timing

Frozen embryos remain viable for years, allowing couples to choose the best timing for transfer. This provides flexibility, whether due to personal circumstances or the need to sync with the body's natural cycle

The FET Process

1 - Preparation

FET requires hormone monitoring and potentially medication to prepare the uterine lining for the embryo. Blood tests and ultrasounds help determine the optimal time for implantation.

2 - Transfer

The frozen embryos are thawed and transferred into the uterus using a simple, outpatient procedure. No sedation is required, and the process is typically quick with minimal discomfort

Success Rates and Safety

Frozen Embryo Transfer has been shown to reduce risks of complications such as ovarian hyperstimulation syndrome (OHSS) and abnormal placentation. It also tends to result in healthier pregnancies with higher birth weights.

The chances of a successful pregnancy can be further increased by combining FET with genetic testing

Is FET Right for You?

FET is ideal for those who have undergone previous IVF cycles and have frozen embryos available, or for couples seeking genetic testing prior to embryo transfer. It’s especially beneficial for those who want to optimize their chances of success by allowing their bodies time to heal post-egg retrieval.

If you’re interested in exploring FET or other fertility options, contact the Center for Reproductive Health in Spokane to schedule a consultation. Our team will help guide you through every step of your fertility journey.

Center for Reproductive Health

Frequently Asked Questions About Frozen Embryo Transfer (FET)

1. What is a Frozen Embryo Transfer (FET)?

A Frozen Embryo Transfer (FET) involves thawing previously frozen embryos and transferring them into the uterus. These embryos are typically cryopreserved during a prior IVF cycle. FET offers a flexible and often more successful alternative to fresh embryo transfers

2. Why is FET often preferred over fresh embryo transfer?

FET allows for the body to recover fully after egg retrieval, leading to higher success rates and reduced complications such as ovarian hyperstimulation syndrome (OHSS). It also gives time for comprehensive genetic testing on the embryos, increasing the chances of a successful pregnancy

3. How long can embryos be frozen?

Embryos can be safely cryopreserved for many years without losing viability. Most fertility clinics have successfully used embryos stored for over a decade

4. What is the success rate of FET?

FET has a high success rate, often higher than fresh embryo transfers. Success rates depend on various factors such as the woman's age, embryo quality, and overall reproductive health, but FET offers an enhanced chance of live birth

5. What are the steps involved in an FET cycle?

Preparation for FET involves hormone monitoring and potentially hormone medications to ensure the uterine lining is ready for implantation. Once the optimal timing is determined, the frozen embryos are thawed and transferred into the uterus in a quick, outpatient procedure

6. Is FET safe?

Yes, FET is considered a safe procedure. It reduces some risks associated with fresh transfers, such as OHSS, and improves the chances of healthier pregnancies with fewer complications

7. Can FET be combined with genetic testing?

Yes, FET can be combined with genetic testing such as Preimplantation Genetic Testing for Aneuploidy (PGT-A). This allows the selection of chromosomally normal embryos, which improves the chances of a successful pregnancy and reduces the risk of miscarriage

8. How soon can I try FET after IVF?

You can try FET during your next cycle after IVF, allowing your body to recover from egg retrieval. Your fertility specialist will determine the best timing based on your health and hormone levels