Increase Your Chances Of Conceiving By Opting To Transfer The Embryo At The Blastocyst Stage

After insemination, an embryo gets developed after five or six days in the laboratory. This is a blastocyst. This type of transfer increases the chances of pregnancy much more since it is more advanced than the 3-day old transfer of an embryo and thus the birth rate is higher in the former case.

Blastocyst transfer
A two or three-day transfer is common in a standard IVF cycle embryo where the embryo gets transferred to the womb two or three days after the egg collection and insemination. An alternate to IVF is the Blastocyst transfer where the embryo is transferred only after it reaches the advanced stage of 6 days. In these 6 days, the embryo gets divided into many more cells and also multiple times.

The blastocyst also has a thin outer layer and this increases the chances of it implanting into the uterine cavity. The majority of the fertilised eggs will develop into a three-day embryo, however only around 40% of them will reach the blastocyst stage. So this increases the chances of pregnancy as they are a select group.
An embryo has to free itself from the shell that had protected it. The embryo advances to the blastocyst stage after the fourth day onwards. The blastocyst now gets filled with a fluid and this weakens the shell. The blastocyst then hatches from the shell and this then gets implanted in the uterus lining. This happened around 7-8 days after insemination.

Who should opt for it?
If you have had a case of implantation failure in the past then the blastocyst extended culture could offer an opportunity to examine the embryo over the period. In case the embryos are getting arrested or they have become fragmented then any potential issues can be found out by the doctor. Blastocyst transfer is also beneficial in case there is a requirement for just a single embryo transfer or for those who have had a history of the uterine issue or multiple pregnancies.

Selecting the embryo
More than 50% of embryos in women are not viable and after about 5 to 6 days many of these embryos stop to develop. Many of these may not have the correct chromosome number and those embryos that did not develop to the day 5 or 6 would not have been able to develop into a pregnancy. In case there is a large number of the good quality embryo in the blastocyst stage then they can be frozen. The result of using frozen blastocysts after thawing has been remarkable.

The condition is more suitable for a blastocyst in the womb than when you place a 2 or 3-day old embryo. This is because of the slight different condition in the womb and in the fallopian tube.

The chances of live birth are higher in the Blastocyst transfer method; however, it is important to consult an embryologist or your consultant before you decide which process is best suited for you. It is also important to know that opting for an extended culture process will not improve the quality of the embryo but it will allow choosing the best ones from the group of embryos.

Filed in: HealthFitness

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