At the 30th Anniversary Health Reproductive Symposium on the Successful Application of Assisted Reproductive Technology in Beijing on March 31, it was learned that there are more than 10,000 professionals engaged in assisted reproductive technology services, and 200,000 babies are born each year through assisted reproductive technology. .

Thirty years ago, the first test-tube baby in mainland China fell to the ground in the Third Hospital of Peking University. In the past 30 years, China's reproductive medicine and assisted reproductive technology have continued to improve. At present, the clinical pregnancy rate is about 40%, and the live birth rate is 30% to 35%, which has reached the advanced national average. Advanced techniques such as single sperm oocyte injection, preimplantation embryo genetic diagnosis, immature egg in vitro culture maturation technology and human reproductive reserve have been carried out. There are 451 medical institutions approved for human assisted reproductive technology, and 23 medical institutions have been approved to set up human sperm banks.

It is estimated that the incidence of infertility in China is about 5% to 15% of the couples of childbearing age. With the implementation of the comprehensive two-child policy, many families have the desire to have children again. There are many elderly couples, and the demand for assisted reproductive technology is growing. At present, the number of assisted reproductive treatments in Peking University Third Hospital exceeds 30,000 per year, an increase of 20% compared with the full two children. Qiao Jie, an academician of the Chinese Academy of Engineering and dean of the Third Hospital of Peking University, said that with the maturity of assisted reproductive technology, many women hope to use it to extend their own reproductive cycle. The number of eggs stored in the female ovaries is innate, and each time a menstrual period consumes a batch. After the age, not only the reserve is relatively small, but the quality is also reduced. Therefore, even older women who have a test tube baby have a lower success rate. The success rate of pregnancy in IVF can be expected to be 50% to 60%, but the success rate of 40 years and above is less than 20%, and the probability of pregnancy failure and miscarriage is high. Qiao Jie reminds women of the right age that they should first strive for natural pregnancy, cherish the opportunity to give birth, follow the laws of nature, and try to complete birth before the age of 35.

Qiao Jie said that the field of assisted reproduction focuses on the protection and preservation of fertility. When a patient suffers from some diseases and needs treatment, such as cancer patients need chemotherapy, radiotherapy, etc., it will damage their fertility and preserve fertility before the disease is treated. It is necessary to advocate. Specific methods include frozen eggs, frozen sperm, frozen ovarian tissue, frozen testicular tissue, and in vitro culture of follicles. These technologies have more room for improvement in the future. Another important direction in the field of assisted reproduction is to diagnose the causes of various genetic diseases and find more causes of rare diseases, so that rare diseases are no longer passed on to the next generation, improve the quality of the birth population, and reduce the burden on families and society. (health report)

Lower limb External Fixation

External fixation of the lower limb is a treatment used to fix a fracture or dislocation of the lower limb.The functions of these external fixation methods are mainly as follows.

1. Stabilize a fracture or joint dislocation.External fixators can fix the bone or joint in the correct position to prevent further displacement or dislocation,thereby promoting the healing of the fracture or joint dislocation.

2. Pain relief,external fixators can reduce pain and discomfort by fixing and supporting fractures or joint dislocations.

3. Promote fracture healing,external fixator can provide a stable environment,promote fracture healing and bone tissue regeneration.

4. Protect surrounding tissues.External fixators can protect surrounding soft tissues (such as muscles,tendons and blood vessels) from further damage and reduce the occurrence of complications.

In general,the classification and function of lower limb external fixation is mainly to stabilize and protect fractures or joint dislocation,promote healing and restore function.The specific treatment should be selected according to the patient's condition and the doctor's advice.

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