Purpose of review
The purpose of the review is to summarize recent developments in time-lapse technologies and early embryo morphokinetics and to discuss their impact on current clinical outcomes.
Contemporary embryo culture and selection methodologies that are based on classical morphology are clearly limited in providing the most suitable embryo for a successful pregnancy. Noninvasive observation of embryo development by capturing the images with a time-lapse device has recently been proposed to be a better method of embryo viability assessment. Such methodologies have been shown to increase the quality and the quantity of information on the viability without disturbing the culture conditions.
Commercial availability of different time-lapse devices for human embryos facilitated the use of morphokinetics as an additional tool in human embryo selection. The application of such technologies has already shown positive results on clinical outcome by increasing our scope of traditional embryo selection, leading to higher implantation and clinical pregnancy rates. Additional benefit can come from the less-disturbed incubation environment that is created by all-in-one incubators. Such devices can also be very important research tools in order to observe and analyze the effect of different patient-specific or clinical conditions on embryo development parameters that are not available through classical embryo scoring.