Every IVF or ICSI treatment involves the culture of embryos for one day, two day or even five days, which is called as Blastocyst stage. A typical embryo was cultured for 3 days before being transferred into the uterus. In this blastocyst culture, the embryos grow for longer in the laboratory and endure critical developmental changes before being returned to the womb. This extension period helps the experts in selecting the most component embryo for transfer to the womb and could assist them in selecting which embryos have the best growth prospective. Meanwhile, the embryo will go into the blastocyst stage, at which single cell is divided into more number and it achieves the cell differentiation into two different types and a central cavity filled with fluid.
Generally, these blastocyts are formed 5 days after fertilization. The outside layer of the blastocysts is compromised with more number of cells, which is regarded as trophoblast. The blastocyst process has a lot of use in the IVF as the egg is culturally fertilized before implanting it into the uterus. This treatment is regarded as the most viable treatment compared to the other conventional IVF treatments.
The main benefit of blastocyst culture is that it reduces multiple births that can results from IVF. This transfer is generally recommended for the patient who have:
- Previous failed attempts at achieving a pregnancy
- Previous history of miscarriages
- Women who has a better chance of having blastocyst development
- Women who has strong concern about having multiple pregnancies.