PGD programs, preimplanntation genetic diagnosis are also offered to families with any genetic disorders when there is a risk of Down's syndrome, Thalasemia, and other heredity diseases. It allows the families that have experiences with heredity diseases and genetic disorders to have a healthy child. PGD programs, preimplantation genetic diagnosis is offered to the couples that have decided to use in vitro fertilization to have a child. PGD programs include genetic diagnosis, diagnosis of the embryo, diagnosis of the parents or donors and embryo sex selection. The sex of a future child can be very important to some people. For example, in the case where some heredity diseases affect only people of one sex. It can be color-blindness, hemophilia, and many other diseases. There can be many reasons why people wish to select the sex of their future child.
PGD programs begin at several levels. First, it is a diagnostic program for future parents. And, then, it is a very serious and complex diagnosis of the embryo before it is adopted. The achievements of genetics allows for its performance and to prevent more than 35 hereditary diseases for a future child.
The procedure of extracorporeal fertilization consists in the stimulation of an ovary to have the ovule and an ovum fertilized by sperm. The stimulation is performed by a clomphene in combination with human gonadotropins and other medications that stimulate the hormone released by hypophysis from the second day of the menstrual cycle. After the stimulation, doctors get many ovules at the moment of ovulation.
A process of follicles developing and ovules maturing is controlled by an ultra sound scan from the eighth until the fourteenth day of the menstrual cycle. The last injection cycle is from the tenth to the sixteenth day of the menstrual cycle, 36 hours after the last injection when the follicles have matured, all the ovules are extracted from the follicles of the ovary. During the next 24 hours, the ovules are fertilized by the sperm of the husband or donor.
Sometimes the sperm is introduced directly into the ovule. It is performed when a sex selection is needed.
During the same period, the same genetic procedures can be performed to prevent the occurrence of some hereditary diseases.
If the fertilization is performed effectively in the ovules, three or four embryos are introduced in to the uterine cavity through the vagina and neck of the uterus. A number of embryos are tested by an ultrasound scan three weeks after the embryo adoption.
Today, there are many medical centers that provide many specialized laboratories and departments that offer genetic research and offer more and effective methods to have a healthy child. The number of these methods increases greatly and the quality of medical services is better and better. However, the rates of successful cases are not very high. but it is better than nothing.
We can recommend that people who wish to have a child and care about their health not be afraid and consult a specialist.