“Blastocyst” is an embryo that has developed for five to seven days after fertilization and has 2 distinct cell types and a central cavity filled with fluid (blastocoele cavity).
Typically during IVF or ICSI an embryo is transferred to the womb on Day 2-3. But during Blastocyst Culture or Prolonged Embryo Culture, an Embryo is allowed to cultivate in the lab for a longer period of time, so that we can obtain information concerning the vitality of the embryos and determine whether or not they will continue their development.
Blastocyst Culture is usually recommended when:
As a patient your treatment cycle is exactly the same as for IVF, except that your embryos will be cultured for longer in the embryology laboratory. This means that the day of your embryo transfer will be five days after egg collection instead of Day 3.
The primary risk of attempting Blastocyst Transfer is that some embryos may not survive 5 days of culture outside the human body. Therefore, the total number of embryos available for transfer and freezing will be less.
Unfortunately for a very small number of couples (<5%), the embryos stop developing after day 3 and treatment stops at this point, without an embryo transfer being possible. This is known as embryonic block and this itself may be the very cause of infertility.
Please refer to the Treatment Service Quick Reference Chart to know more about the Procedure and it’s cost.