Treatments
- Conjugal artificial insemination
- Artificial insemination with a donor
- Classical in-vitro fertilisation(IVF)
- IVF with intracyoplasmic sperm injection
- Sequential culture of embryos
- Assisted hatching
- Donation of eggs
- Pre-implantation genetic diagnosis
- Aspiration of cytoplasmic fragments
- Cryopreservation of gametes and zygotes
Sequential cultivation of embryos
What is it?
The transfer of embryos is carried out habitually on the 2nd or 3rd day after the puncture. Nevertheless, the advance in the knowledge of the physiology of the embryo has permitted the cultivation of a new media development, capable of contributing the nutrients and necessary substances to be able to prolong the cultivation and to postpone the transfer to 5 or 6 days, when the embryo reaches the stage of blastocyste. With it we can prolong the observation in the development of the embryos and to carry out a better selection. Besides this the rate of establishment at this stage is a lot greater, we will be able to diminish the number of embryos to transfer without the rate of pregnancy varying, managing to diminish the risk of multiple pregnancies.
When is it used?
EThis type of cultivation is used when transfer of only an embryo is desired, in the cases of PGD or when pregnancy was not achieved in previous cycles with embryos of good quality.
What are the risks?
There is a risk of not being able to obtain embryos to transfer, also a risk of reduction of the number of embryos to cryopreserve.
