Success Rates of Blastocyst Embryo

Day by day In-vitro fertilization or IVF is becoming the premier choice among couples who wish to conceive. This method ensures the maximum possibility of getting pregnant to give birth to babies without any serious defects. Usually the females of younger age experience the most successful results. The IVF success rates are higher in women of age below 30 and the rate significantly falls with increasing age such as 5 to 10 percent in age 30 to 35 however only 2 to 3 percent in age above 40.

Blastocyst transfer IVF is a selective procedure in selecting the eligible patients for embryo culture and transfer. The patients chosen for blastocyst transfer are younger and produce more embryos that are healthy observed in the microscope. Thus, the success rates are greater in this selective people rather in the unselected patients.

5 Blastocyst offers more implantation and pregnancy rates as compare to 3 embryos.

Blastocyst transfer cannot cure sex chromosome abnormalities, but it can be avoided. In this case, the best quality embryo(s) can be selected and transferred to the woman’s uterus. This means that the embryo with no abnormalities and the desired sex of the baby is chosen.

1. Several human embryos are chromosomally unhealthy.
2. With increase in female age, the chromosomal problems in eggs increase significantly.
3. At the age of 30, about 30 percent of eggs or embryos suffer with chromosome irregularities.
4. At age of 37, around 45 percent chromosomal irregularities occur.
5. At age above 40, around 70 percent problems occur in embryos.

Some surveys state that there is a larger extent of chromosomal problems in day three embryos as compare to day five embryos. It is because the embryos with chromosomal problems arrest while early growth as compare to normal embryos. A day five embryos transfer has a filtering influence- solving some chromosomal problems. But several chromosomal abnormalities do cause blastocysts.

If we wish more consistent screening for chromosomal abnormal embryos we can perform preimplantation genetic screening or PGS that is performed by biopsying day five or six blastocyst and conducting chromosomal testing on the biopsied cells. The embryos are cooled after biopsy and transferred subsequent to receiving genetic outcomes.