Principles and techniques of embryo transfer
Embryo transfer is an assisted reproductive technology. Its principle is to transplant embryos cultured in vitro into the mother\’s body. After artificial insemination or artificial conception, the embryo is cultured in vitro until the embryo differentiates into the blastocyst stage, and then the blastocyst is transplanted into the mother\’s uterus. If the blastocyst can implant in the uterus, pregnancy will occur, which is considered a successful transplant. The technology of embryo transfer mainly includes embryo culture, blastocyst selection and transplantation.
Embryo culture requires an in vitro incubator that can control environmental temperature, humidity, nutrition and other factors. The fertilized eggs are cultured outside the body and complete the embryonic development process through different stages (usually divided into 2-8 cell stage, single cell stage and blastocyst stage). During this process, people need to add specific nutrient solutions and growth factors on time to ensure the normal development of the embryo.
The selection and transfer of blastocysts are the core steps of embryo transfer. The blastocyst stage is a stage of embryonic development and is also the best period for embryo transfer. At the blastocyst stage, the embryo develops into a spherical blastocyst with a complete structure and complete parts. At this stage, blastocyst embryos are of better quality and are more likely to survive and implant. The selection of blastocysts mainly includes two methods: external morphological judgment and genetic testing.
Success rate of embryo transfer
The success rate of embryo transfer is affected by many factors, including maternal age, embryo quality, transfer timing, etc. It is generally believed that the older the mother, the lower the success rate of embryo transfer. Embryo transfer also has high requirements for embryo quality. Only well-developed blastocysts are likely to implant successfully. In addition, the timing of transplantation is also critical. Generally speaking, embryos need to be transplanted before implantation in the uterus. According to statistics, the probability of successful embryo transfer is between 30% and 50%.
Notes
Embryo transfer is a high-risk assisted reproductive technology. Prior to embryo transfer, a thorough examination and evaluation is required. If you have the following circumstances, it is recommended to suspend the embryo transfer plan: 1. Have severe uterine malformation, endometriosis and other diseases; 2. Older age, hypoovarian function, PCOS and other physical conditions that make pregnancy difficult; 3. Have Severe heart disease, liver and kidney disease and other chronic diseases; 4. Suffering from genetic diseases, etc.
During embryo transfer, you need to take medications according to the doctor\’s recommendations, avoid overwork and mood swings, and maintain good living habits and eating habits. Regular prenatal check-ups are required after surgery to ensure normal development of the embryo.
Summary
Embryo transfer is an assisted reproductive technology that mainly includes embryo culture, blastocyst selection and transplantation. The success rate of embryo transfer is affected by many factors. It is recommended to conduct a comprehensive examination and evaluation before embryo transfer. After receiving an embryo transfer, you need to pay attention to things, follow the doctor\’s advice, maintain a good life and eating habits, and have regular prenatal check-ups.
