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IVF Spain is the first clinic in Spain to offer the new Early Embryo Viability Assessment (Eeva) test

The Eeva test is the first and only non-invasive IVF test clinically proven to increase the accuracy of predicting viable embryos at an early stage. The Eeva test was developed based on landmark research conducted at Stanford University, in the United States, which discovered that early cell division timings are an accurate predictor of viability and underlying health of the embryo.

What is the difference between traditional embryo grading and Eeva?

Traditional Embryo Grading

Embryologists use a process known as embryo grading to visually determine the quality of embryos during embryo development. Embryo grading is traditionally performed using microscopic observation at set times (usually once or twice a day) to minimise the time embryos spend outside of the controlled environment of an incubator.

The assessment is based on visual appearance of the embryos such as the number of cells, symmetry of cells and degree of cell fragments. However, traditional embryo grading is subjective and is based on snap-shots of the embryo at selected times.

Embryo Grading by Eeva

Eeva consists of a special microscope that fits inside a standard incubator and takes video of your embryos during the critical first days of development to determine an embryo’s viability and the potential for further development.

Benefits of Eeva

There are many factors that contribute to a successful live birth, but identifying viable embryos in the first few days is one of the most critical.

The benefits of Eeva include:

  • Improved ability in selecting the most viable embryos: In a clinical trial of 54 patients with approximately 755 embryos, embryologists using Eeva were able to improve their ability to correctly identify non-viable (85% of the time vs. 60% of the time when using traditional methods).
  • Objective information early in the process that allows you and your IVF team to make informed decisions regarding:
    • When to transfer
    • How many and which embryo(s) to transfer or to freeze
    • What to do after an unsuccessful cycle

Is it safe?

Research has shown that imaging embryos has no detrimental effects on embryo development. Therefore Eeva is non-invasive, accurate and safe.

Is Eeva right for you?

Whether you are on your first fertility treatment cycle or have received fertility treatments before, Eeva is a suitable test for all patients. By providing access to critical and subtle differences in the early stages of embryo development, Eeva provides your medical team with objective information about the underlying health of the embryo. This information is critical in making informed decisions about your treatment path.