Low-quality embryo is one of the common causes of unsuccessful IVF. Therefore, American scientists have developed a test that will help to calculate the efficiency of IVF. To increase the chances of conception could be due to a number of features that characterize the viability of embryos.
To carry out the experiment, scientists have fertilized ovum in artificial conditions. After a few days they have been studied under a microscope to find out which of them have a higher probability of survival. To determine the mechanical characteristics of the embryos, they have been squeezed in test tube and scientists found out such signs of nonviable embryos:
– Low elasticity of the membrane;
– Excessive elasticity of membrane.
Too hard and too soft embryos mostly have not developed or had damages, and those embryos that have quickly received original shape after compression in test tube, have been most viable.
Scientists have selected the best samples and with help of micropipette have placed them in a favorable environment for development. With help of this selection, more than 50% exemplars have survived to a multicellular state.
Over use of this determining method of embryo quality is still working, but soon it can be used for infertility treatment. This discovery makes it possible to know in advance whether the embryo can survive and develop in a woman’s body. This will increase the chances of pregnancy and will significantly reduce the financial cost of repeated courses of treatment.