Methods for evaluating the quality of IVF embryos
IVF is a kind of assisted reproductive technology, which can achieve fertility by cultivating the fertilized egg to a certain stage in vitro and then transferring the embryo to the mother's uterus. The success rate of IVF is affected by many factors, among which embryo quality is one of the important factors that determine the success rate. So, how do we evaluate the embryo quality of IVF? This article will elaborate from four aspects: embryo appearance, embryo growth and development speed, embryo chromosome normality and embryo resource utilization rate.
Embryonic appearance
Embryo appearance is one of the most intuitive indicators for evaluating embryo quality. Generally speaking, late embryos should have the following characteristics: good expansion of blastocysts, high compactness, uniform cell division and no cracks in cells, and uniform distribution of cell particles. In addition, normal embryos should have appropriate blastocyst size and strength of cytochrome consistent. The hospital usually uses a microscope to observe and evaluate the appearance of the embryo to determine the quality of the embryo.
However, observation of embryo appearance alone cannot provide a comprehensive assessment of embryo quality. Therefore, further attention should be paid to the growth and development speed of embryos.
Embryonic growth rate
The rate of embryo growth and development is one of the important indicators of embryo quality assessment. Normal embryos should reach a certain stage of development within a specific time. For example, generally speaking, the embryo on the third day should reach the eight cell stage, and the embryo on the fifth day should form a blastocyst. The hospital usually uses the in vitro culture system to evaluate the growth and development speed of the embryo and observe whether the embryo can reach the expected development stage on time.
Embryonic chromosome normality
Embryo chromosome normality is also an important factor in evaluating embryo quality. Chromosome abnormalities may lead to embryonic development failure, early termination or abortion. In order to evaluate the normality of embryonic chromosomes, hospitals usually carry out embryonic genome testing to detect abnormalities of embryonic chromosomes.
The utilization rate of embryo resources is another important aspect of evaluating embryo quality.
Utilization rate of embryo resources
The utilization rate of embryo resources refers to the proportion of high-quality embryos selected from a batch of fertilized eggs for transplantation. Generally, only high-quality embryos can be selected for transplantation to improve the success rate of IVF. The utilization rate of embryo resources reflects the technical level of IVF diagnosis and treatment team and the strictness of selection criteria.
The Influence of IVF Embryo Quality on Success Rate
The success rate of IVF is affected by many factors, among which embryo quality is an important one. IVF embryos with good embryo quality have higher implantation and implantation capabilities, thus improving the success rate of pregnancy. Research shows that high-quality embryos usually have normal karyotype and good growth and development speed, so they have a higher probability of success.
In conclusion, embryo quality has an important impact on the success rate of IVF. The quality of embryos can be comprehensively evaluated by evaluating embryo appearance, growth and development speed, chromosome normality and utilization rate of embryo resources. In the process of IVF treatment, the hospital will select the best embryo for transplantation according to these evaluation indicators to improve the success rate of IVF.
