When can frozen blastocysts be transferred?
As found in many kinds of research, the rates of successful pregnancy are higher in frozen embryos at the stage of blastocyst than in fresh embryos. Also, the frozen embryo procedure is significantly safer and more effective. As it not only helps couples to conceive, it also provides a wider possibility of delivering a healthy baby.
What is an embryo?
When an egg and a sperm collide, they make an embryo. as it is the earliest stage of human development during which vital bodily structures, including organs, are developed.
What is a blastocyst?
When a healthy developing embryo comes to the stage of rapidly dividing balls of cells, by the fifth or sixth day, the fertilised will be considered a blastocyst while making the outer layer so that it can get nutrients and protection.
What do you mean by frozen blastocyst?
People can store embryos (a combined form of an egg and sperm) for the future by opting for the embryo freezing method at the blastocyst stage when the cell division number is more than 250.
However, the potential to freeze an embryo at the blastocyst stage is subject to several restrictions. It is a complex process, and that’s why embryologists work with caution while having guidelines in their mind, as only the highest quality embryos get selected for the successful blastocyst implantation to complete the process.
How long can a blastocyst be frozen before it loses its functionality?
According to scientific research, embryos can typically be stored for up to 10 years. However, in some major circumstances, women can be stored for 55 years too. However, it is suggested to consult with an IVF (In-vitro fertilization) specialist as he will guide you regarding the blastocyst transfer and IVF treatment more efficiently than anyone.
When can we do blastocyst transfer?
Depending on which day after fertilization the embryo was frozen, it is usually carried out on either the fourth or sixth day of progesterone.
The uterine endometrial lining can become an attachment site for trophectoderm cells. During the same period, the uterine lining acquires the capacity to allow trophectoderm cells to form the blastocyst.
Details about blastocyst implantation
The process of Blastocyst implantation can be divided into three stages:
Apposition: The blastocysts’ unstable attachment to the uterine lining is known as apposition.
Attachment (adhesion): Stable adhesion is a component of the attachment phase. The embryo and lining tend to deliver messages to each other during this stage.
The invasion of the embryo’s trophectoderm cells deeper into the stroma of the uterine lining occurs during the penetration phase, directly connecting it to the mother.
What is the timing of blastocyst transfer?
After the 5th day of blastocyst transfer, it usually emerges from its shell to start the implementation process. As the blastocyst needs to hatch and implant at the same time, within 6–10 days following the ovulation process in a natural way.
What is the success rate of frozen blastocyst transfer?
According to the Society for Assisted Reproductive Technology (SART), live birth rates (LBRs) for frozen eggs were found to be lower.
The success percentage for frozen blastocyst transfer depends on
For women under the age of 35 years old, 46.5%
For women between the ages of 35 and 37, 38.6%
For women between the age of 38 and 40, 29.4%
For women over the age of 41 years, 25.9%
Things to keep in mind after the blastocyst transfer
- Avoid taking hot baths.
- Take your medicines at the proper time.
- Do not take the stress.
- Try to be happy.
Conclusion
In comparison to fresh blastocyst transfer, the procedure of frozen blastocyst transfer not only enhances the likelihood of successful pregnancy but also makes the procedure efficient and secure. For further concerns, you can also reach out to the best IVF centre in Delhi, where a dedicated team of IVF specialists will guide you on how to proceed further.
