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china 's first frozen embryo inheritance sentencing decryption frozen embryos

from:e.uuuwell.com  2018-10-11 21:10

   

yixing of a couple, married in 2010, in 2012 because of primary infertility and other reasons decided to ivf - assisted reproduction procedure, namely ivf. unfortunately, the hospital after obtaining the four embryos, is preparing to transplant, but the couple both died in a car accident. after

unfortunate event, the couple's parents, four elderly for continuation of incense, are required to obtain the inheritance of frozen embryos in the hospital, the two at loggerheads over, end up in court. in may this year, the court of first instance, frozen ivf embryos are not inheritable subject matter, rejected the old people's prosecution. after a lapse of more than three months, on september 17, wuxi intermediate people's court made a final decision, commuted to four embryos joint supervision by both the elderly disposal.

it is understood that the fertilized embryos are generally three methods of treatment. first, destroyed. second, the continued freeze in the hospital. third, it becomes your baby. it is only three possibilities. first, find someone surrogacy. second, the two sides find a surrogate female relatives. third, both sides pregnant women elderly themselves.

the second way is clearly not the first old people's choices, otherwise it will not in court. and to let the embryo develop into a baby, in the circumstances and are not appropriate in law. however, the old people worked extremely hard to secure the embryo is not how to deal with that we can say over the. we can only go to resolve, this is still sleeping in the "baby" - frozen embryos.

what is frozen embryos

in fact, the so-called frozen embryos through in vitro technique is to cultivate the resulting embryos stored in liquid nitrogen to minus 196 ℃ in the environment, it's got a long time to save a method of preserving fertility methods.

specific methods, doctors in determining patient compliance with ivf conditions, to increase the number of mature eggs by means of drugs to stimulate ovulation, under normal circumstances can be collected every 8-12 eggs, then from selected good quality eggs in vitro fertilization, and ultimately develop a three to five high-quality embryos for transplantation.

but in fact, not all of the embryos can be placed in the mother gave birth to life. the ministry of health "human assisted reproductive technology management approach" clearly states that women under 35 years old for the first time number of embryos can not over two, 35 years of age or a second transplant can put three. therefore, each "test-tube baby" treatment, generally only 1-3 embryos will be transplanted back into the uterine cavity, there continue to be placed on the transplant of embryos frozen in liquid nitrogen tank, quietly sleeping. only when the treatment cycle is not successful, or if you want a second child, the embryo can save natural ovulation cycle or hormone replacement cycle transplanted back to the parent.

so, these are "wake up" the embryo of the baby is also conceived and gave birth to a normal child health?

reproductive medicine experts said, after the embryo "wake-up", as long as quality standards, nurtured as a very healthy baby. but sooner thaw embryo quality is better.

after the wake frozen embryo transplant success rate than fresh embryos

in this regard, it was survival of frozen embryos expressed doubts, embryo freezing and then wake up, the survival rate can be compared too fresh embryo it?

experts said this is exactly the opposite. frozen embryo transplant success rate of anti-awake than fresh embryo high. according to reports, the clinic, the doctor can collect multiple eggs, in general, access to quality 12-15 eggs is the best, and more, will be some inherent eggs every one, less, indicating that poor maternal ovarian function , egg quality is not necessarily good.

these eggs through in vitro fertilization and embryo cultured, generally leaving seventy-eight. these embryos, the doctor will choose twenty-three develop into blastocyst implanted in the mothers womb, known as fresh embryos; the rest will be frozen, called frozen embryos.

it is understood that fresh embryo transplant success rate of more than 40% -50%, while frozen embryo transplant success rate of nearly 70% after recovery, mainly by the physical condition of the mother's decision. when fresh embryo transfer, the parent with more damage after the egg retrieval and other steps, endometrial recovery may not be ideal, but when frozen embryo transfer, the parent after the rehabilitation, rest, uterine situation easier to conceive.

however, due to migration need to meet the female menstrual cycle, and after age transplant success rate will be reduced, so that usually cultivate fresh embryo transfer as soon as possible, rather than frozen embryos will wait.

can normal people separated frozen embryos of fertility

after the two-child policy ground, frozen embryos also followed up tight. some people worry too old, poor egg quality, so if you can use frozen embryos compartment of fertility?

reproductive medicine experts believe that ivf technology must meet infertility medical indications, and the current national policy and not allowed to do ivf procedure as normal reproductive health of women, so naturally the normal population unable frozen embryos.

frozen embryos is more suitable for some special populations, such as younger women with no education cancer in radiotherapy and chemotherapy prior to freeze their oocytes preserve fertility; some women are engaged in high-risk occupations suitable for freezing eggs or embryos frozen, such as x-ray doctors, astronauts, etc.

in general, for people of frozen embryos are the following:

1, ivf treatment cycles that can be used during the remaining embryo after embryo transfer;

2, this treatment cycle maternal uterine environment is not suitable for pregnancy (such as severe ovarian hyperstimulation syndrome or endometrial poor, etc.), but also the first implantation of cryopreserved suspended until the appropriate time to do thawed;

3, this treatment cycles of fever, diarrhea and other systemic diseases can not be transplanted;

4, the patient may lose ovarian function (eg to accept chemotherapy, radiation therapy or surgery etc.), can also choose to save their frozen embryos fertility.

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