Rapid Freezing Improves IVF Results

This year has seen the arrival of scores of babies conceived using City Fertility Centre’s new rapid freezing embryo programme.

City Fertility Centre’s Scientific Director, Adnan Catakovic, said the new vitrification or “rapid freezing” process worked 7,000 times faster than slow freezing and had resulted in a dramatic increase in pregnancy rates.

“Since introducing rapid freezing, City Fertility Centre has increased embryo survival rates from 60-70% (slow freezing) to 80-90% (rapid freezing) and pregnancy rates have improved from 30% (slow freezing) to 40-50% (rapid freezing),” Adnan said.

The results at City Fertility Centre are exceptional when compared to internationally published data on rapid frozen blastocyst embryos, he said.

“Rapid freezing, or vitrification, greatly reduces the risk of rupturing or damage to the embryo as there is no chance for ice to form within the cell,” he said.

City Fertility Centre’s Gold Coast Clinical Director, Dr Andrew Davidson, said the new technology had the potential to reduce the impact of IVF on patients.

“Freezing embryos helps reduce the discomfort of IVF and offers multiple chances to become pregnant,” Dr Davidson said.

“These results show that rapid frozen blastocyst embryos have better survival rates post thawing and, most importantly, are delivering higher pregnancy rates than traditional methods,” he said.


  • Rapid freezing is producing better outcomes – bringing patients closer to their dream of taking home a baby.
  • Vitrification is a new technology in IVF treatment that City Fertility Centre has successfully adapted into a rapid freezing programme. It is now available for embryos and eggs stored at their centres located in Brisbane, the Gold Coast and Melbourne.
  • The Gold Coast Centre has been opened since 2005 with recent expansions in Robina and Benowa.

For more information please contact CFC Gold Coast on 1300 859 116 or the City Fertility Clinic closest to you.


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