Why is Embryo Cryopreservation Performed?
Embryo freezing is performed for several reasons:
One of the main reasons is to preserve fertility for individuals or couples facing some medical treatments, such as chemotherapy or radiation, that may affect their ability to conceive.
This also helps optimize the success of in vitro fertilization. During IVF, many embryos are usually created, but not all of them are transferred in the same cycle to prevent multiple pregnancies. Embryo freezing allows excess embryos to be safely stored for future use, increasing the chances of a successful pregnancy.
Genetic testing(e.g., PGD or PGS) can be carried out on embryos before they are frozen. This can be used to identify healthy embryos or embryos with specific genetic traits or conditions. This increases the chances of having a healthy pregnancy.
Embryo storage enables the adjustment of the timing of embryo transfer based on factors such as the woman's health or uterine conditions, increasing the likelihood of a successful pregnancy.
In egg donation or surrogacy arrangements, embryos can be created and stored before being transferred to the intended surrogate.
If fresh IVF cycles fail , previous frozen embryos can be used for subsequent attempts. This is usually less expensive.
Overall, freezing embryos offers flexibility, improves the chances of successful pregnancies, and provides options for individuals and couples in various reproductive circumstances.
Embryos can typically be stored for an extended period, often up to 10 years or more, depending on clinic policies and local regulations. However, the quality of the embryos may gradually decline over time, and legal restrictions might also apply in some regions.
The embryo freezing treatment duration is only 20–30 minutes. However, ovarian stimulation, egg retrieval, fertilization, and embryo selection can take several weeks before freezing. If you want preimplantation genetic testing, it may require additional time. The timeline for the procedure usually depends on individual circumstances and treatment plans.
● The chances of getting pregnant from frozen embryos depend on various factors. The most important factor is the quality of the embryos after freezing. Embryos of higher quality, which have strong cell development and genetic health, are more likely to result in a successful pregnancy.
● Furthermore, the recipient's age and general state of health are also important factors. Younger people often have more success with getting pregnant because their reproductive systems are usually healthier.
● Fertility problems or medical issues can also affect your chances of getting pregnant. It's important to identify and treat these issues by talking to a fertility specialist.
● The number of embryos put in during the process can change how likely it is to be successful. Putting in more embryos could mean a better chance of getting pregnant, but it also makes it more likely to have multiple pregnancies, which can have its own problems.
● The health and readiness of the recipient's uterus are critical factors for successful implantation. If the uterine lining is well prepared, the chances of a successful pregnancy are increased.
● Finally, it's important to consider lifestyle factors such as smoking and body mass index (BMI), as they can impact pregnancy outcomes.
Success rates can vary depending on individual
circumstances, so discussing these with a fertility specialist during the
consultation process is very important. Embryo freezing is typically a highly
effective way to preserve fertility and achieve pregnancy, especially when
suitable assisted reproductive technologies are used in combination with