One important aspect of IVF is that embryos are cultured in a 37 C incubator with controlled humility and gas concentration, which mimics the environment of human worm so that embryos can grow well in it. However, for manipulations such as IVF/ICSI or evaluating embryo quality during a traditional IVF cycle, eggs or embryos will have to be taken out of the incubator. It is believed that even short exposure of eggs or embryos to the room condition may adversely affect the quality of embryos, and consequently the pregnancy rates.
A group of English scientists now developed a new method to enable manipulation eggs/embryos within the incubator. This, according to their research report published in the journal PLoS ONE, increases chance of pregnancy by a quarter.