The Advantages of Vitrification over Slow Freezing in Cryopreservation

As a medical specialist in obstetrics, gynaecology, and fertility, over the past decades I have experienced first-hand the impact that the latest technological advancements have had on our ability to provide our patients with the best possible care. One such progression that has revolutionized the field of cryopreservation is vitrification.

What is Vitrification?

Vitrification is a fast-freezing process that has replaced slow freezing as the preferred method of cryopreservation in most sophisticated fertility clinics. Unlike slow freezing, which involves a gradual decrease in temperature, vitrification comprises of a rapid decrease in temperature which leads to the formation of a glass-like solid.


The Advantages of Vitrification over Slow Freezing

There are several advantages of vitrification when compared with slow freezing, including:

  1. Improved Survival Rates. One of the most significant advantages of vitrification is that it has been shown to result in significantly higher survival rates than slow freezing. This is because the rapid cooling process used in vitrification results in less damage to the cells, leading to a higher percentage of healthy cells recovered after thawing.
  2. Improved Post-Thaw Recovery. In addition to higher survival rates, vitrification has also resulted in improved post-thaw recovery rates. This means that cells that are recovered after thawing are more likely to be healthy and viable, increasing the chances of successful fertilisation and implantation.
  3. Shorter Time to Fertilization. Another advantage of vitrification is that it results in a shorter time to fertilisation than slow freezing. Since the process of vitrification is faster, it allows cells to be rapidly frozen and thawed, reducing the time they are exposed to potentially damaging conditions.
  4. Increased Flexibility. Vitrification also provides increased flexibility for patients and their fertility treatments. With the improved survival rates and post-thaw recovery rates associated with vitrification, patients can freeze and store their eggs or embryos for longer periods of time, giving them the freedom to delay their fertility treatments if needed.
  5. Improved Pregnancy Rates. Studies have shown that vitrification has resulted in higher pregnancy rates than slow freezing. This is likely due to the higher survival rates and improved post-thaw recovery rates associated with vitrification, which increase the chances of successful fertilisation and implantation.


Who Can Benefit from Vitrification?

At Sago Team fertility clinic, we use vitrification as our preferred method of cryopreservation. Our experienced team of fertility specialists are trained in the latest techniques ensuring that our patients receive the best care available in our field.

If you are considering vitrification as part of your fertility treatment plan or have questions about the process, our team is here to help 7 days a week. Contact us now for a free online consultation and learn more about how we can help you achieve your family goals.

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