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The desire to be a mother is truncated in many cases faced with the impossibility of achieving pregnancy dreamed of. More and more women have problems when looking for a child. The age delay In which the mother considers her first pregnancy also has to do with all this, but there are many other factors that make future parents have to go to an assisted reproduction center. But what exactly is the in vitro fertilization? We answer your questions.
It is also known as IVF (In Vitro Fertilization), and it is one of the most demanded assisted reproduction techniques due to the impossibility of achieving a pregnancy. It consists of extracting eggs from the woman's body and sperm from the man and achieve fertilization outside the body. It is made in a laboratory and is so called because at the beginning glass containers were used for it. The first 'in vitro' child was born in 1978.
There are different methods to help achieve pregnancy. In fact, IVF is often the last option. Sterility is considered to exist if the couple has not achieved pregnancy within a year. The first the cause will be determined. They can be multiple: from a bad quality of the man's semen to an ovarian alteration of the woman.
Before extracting eggs and sperm, the woman will have to undergo ovarian stimulation. It is a treatment of about two weeks and consists of the administration of hormones that favor a greater production of oocytes. These hormones are usually injected through the skin. When the oocytes are mature, they are ready for extraction. The higher the number of oocytes, the more likely implantation will be successful.
One of the most frequently asked questions by women considering IVF is about the timing of the extraction. Three days before extraction, a hormone is administered to the woman (Human Chorionic Gonadotropin) to stimulate ovulation. The oocytes are removed by an ultrasound-guided needle. No anesthesia or hospitalization is needed. The extraction takes less than half an hour.
In the laboratory, the oocytes are isolated from other cells that surround them and are incubated at a temperature of 37ºC for 2 or 3 hours. Later we proceed to unite oocytes and sperm (which have already been previously extracted and prepared). It can be done in two ways: place oocytes and sperm in a petri dish (plastic) and wait for fertilization to occur by itself O well externally inject the sperm into the egg. After 18 hours, it will be known how many oocytes have been fertilized.
The embryos will take between two and five days to be ready for implantation. This is done through a cannula (a small plastic tube). No anesthesia is necessary but a progesterone injection is usually given and a period of rest in the clinic is recommended. It is not painful, but it is annoying. It can cause abdominal cramps.
The average is around 33%, although the success of in vitro fertilization depends largely on the age of the mother. For example, after the age of 40, the success of IVF falls to 10%. Since only the highest quality embryos are implanted the first time, the rest can be frozen and the whole process repeated later if fertilization is not achieved on the first attempt.
It also depends on the mother's age and the number of embryos implanted, but it is estimated that in around 30% of cases a twin pregnancy occurs and in 3% and 4% of IVF a triplet pregnancy can occur.
You can read more articles similar to In vitro fertilization. Frequently asked questions, in the category of On-site fertility problems.