calls asking many women because they have had the best reproductive age can try “test-tube baby technology”? They are most concerned about what is the success rate of in vitro fertilization? Test tube babies assisted reproduction has no age restrictions? Who fit this reproductive technologies?
reporter interviews the Beijing people’s Hospital of Professor Shen Huan, Deputy Director of the Center for reproductive medicine. Professor Shen said: test-tube babies is the drug therapy for patients with infertility after the failure of other means, such as the only choice, but the technology was not designed specifically for older women, it is not omnipotent. She suggests: If the timing may be opened, or a natural pregnancy, birth-age best.
mostly older women in patients with
it is understood that the ongoing test tube babies almost women of assistive technology for older women. “These patients are over the age of 30, and 31, 32-year old women are very limited, almost 37 years old, aged 38, a 42 year old woman is the Center we have seen the implementation of the technology’s greatest in patients with age. “Professor Shen said.
the “General case, the test-even if done well, its success rate is only about 30%, a young woman can reach between 40%, women if more than 40 years, the success rate had dropped to around 10%. “Professor Shen Huan said,” even twenties is a normal female fertility, to more than 30 years their reproductive capacity will be reduced, because the reproductive organs will be increased with age and aging, IVF success rates are also lower. ”
it is understood that due to the low success rate of in vitro fertilization in aged patients, so often to do several times, will it be possible to conceive. Domestic cases up to 12 times, and abroad up to 27 times. “Some women’s career, just missing a child, because because of their age, do six or seven cycles are not successful, the patient is suffering. ”
more than 45 years too late
” increases opportunities for female infertility increases with age, if you missed the optimal childbearing age women for a variety of reasons, lose their natural ability to conceive, but wanted a child, then in vitro fertilization is a solution. “Professor Shen says,” However, if . women stop ovulation, then it is not possible to do in vitro fertilization. “It is generally women over the age of 45, you almost can’t make this technology.
according to reports, in vitro fertilization as a form of assisted reproductive technology, its main purpose is for female fallopian tubes do not pass or male infertility semen less or of poor quality causes, is also used to find no fault in the cause of infertility, is by far the sterility of the means of final settlement, but it is not designed specifically for women with late age.
Professor Shen said: “women don’t start doing in vitro fertilization, are required because not all infertility; reproductive Center doctors must have a comprehensive set of ideas, not only seeking sophisticated technology. “It is understood that in normal reproductive Center, the doctor will select a most suitable solution for infertility patients, generally follow the principle of selection of technical difficulty from simple to complex. For example, some women just are not caused by ovulation, then simply taking some ovulation induction drugs can be conceived, so patient selection reproductive Center of a mature specification is important.
Professor Shen says women hold “anyway, age, there may be doing in vitro fertilization” idea was incorrect, is likely to miss the birth time.
controversial
first of all, can be achieved by means of a donated egg. In particular, is a young women to donate eggs, mixed with the husband’s sperm to be pregnant women, and then move the fertilized egg into the uterus of pregnant women, development of growing up. Although the infants on the genetics, having inherited the characteristics of their husbands and donors, but in law, the child belongs to the elderly woman and her husband.
the above two methods are different from reproductive activities in the strict sense, therefore remains controversial. Especially the latter, for China’s Ministry of health does not allow the relevant regulations. There is also a new technology, is the sperm cytoplasm injection technique, this technique is suitable for male infertility caused by oligospermia and azoospermia.
what is in vitro fertilization
“in vitro fertilization is not grew up in a test tube, but in in vitro fertilization, they still grew up in a mother’s womb. “Professor Shen said.
it is understood that under normal circumstances, women row one egg a month, but when doing in vitro fertilization, doctors hope she at least around rows of 10 eggs. It really with ovulation induction drugs, usually after 10 days of drug use, egg cells mature. At this time, the doctor under b-mode ultrasound guidance, these eggs out with a fine needle. Then the doctor treated her husband’s sperm and egg mixture, sperm will first enter the egg cell of the active and strong, it’s all in a clean environment. The second day, you can see the fertilized egg into 4 cells, the third day will become 8 cell embryo, then doctors would bring the embryo into the mother’s uterine cavity, so that their continued development and growth.
background: artificial insemination laws
artificial insemination is part of a human assisted reproductive technology, in our country is not impossible to depend on. On February 20, 2001, the Ministry of health has issued regulations for the human assisted reproductive technology. That approach made it clear that: “the human assisted reproductive technology should be conducted in a medical institution, for medical purposes, and to comply with the national family planning policy, ethical principles and the provisions of relevant laws. “