IVF success rate is increasing in Australia


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Multiple births have also declined sharply over the past 10 years, following gradual improvements in several different areas of the IVF cycle.

The success rate for IVF has improved by 18% over the past decade in Australia and New Zealand.


More couples are conceiving by IVF in Australia than ever before, suggests a recently published report.

The success rate has improved by 18% over the past decade in Australia and New Zealand, with improvements in several areas of assisted reproductive treatment (ART) credited for change.

According to the report, which was carried out by researchers at UNSW, 88,929 cycles of IVF began in 2019 in the two countries (81,049 in Australia and 7,880 in New Zealand), leading to 16,310 babies born thanks to the processing.

Among women aged 35 to 39, the rate of live births per cycle has increased from 19% to 23% over the past decade, while the rate of live births among women aged 40 to 44 has increased to 10 % overall, an increase of 27%.

The figures are taken from the Australian and New Zealand Assisted Human Reproduction Database (ANZARD), which brings together data from IVF clinics operating in the two countries.

Dr Magdalena Simonis, a general practitioner with a particular interest in women’s health, said the figures are encouraging, but stressed that the figures remain relatively low, even with the improvements.

“This is very encouraging news, but these are still small numbers.” Dr Simonis said gp news. “This has to be seen in light of the fact that the statistics are so low.”

She also encouraged general practitioners to take the opportunity to discuss pre-pregnancy planning with patients who are considering starting a family.

“The key things start earlier if you can, and we know that a healthy lifestyle before conception will promote healthier eggs and sperm and improve the quality of the embryo,” she said.

The research, which was funded by the Fertility Society of Australia and New Zealand (FSANZ), also indicates that multiple births that have occurred as a result of treatment have declined dramatically.

The percentage of twins and triplets born by IVF was 7.9% of total births in 2010. By 2019, this rate had fallen to 2.9%, which is one of the lowest rates in the world. world. This is partly explained by the increase in the number of IVF cycles where a single embryo is transferred – from 70% in 2010 to 92% in 2019.

“It is unprecedented to see this increase in the rate of live births from IVF in Australia while simultaneously having one of the lowest multiple birth rates in the world,” said FSANZ President Professor Luk Rombauts, at Nine Newspapers.

Dr Petra Wale, senior embryologist and vice president of FSANZ, said the improvement in success rates is due to a range of factors. These include improvements in laboratory techniques, better lifestyle interventions for couples trying to conceive, as well as improved diagnostic and surgical capabilities prior to IVF.

“Every aspect of an IVF cycle – from ovarian stimulation protocols, to the culture media in which embryos are grown, to selecting the best embryo at the optimal stage of development – has seen incremental improvements over the past year. decade, ”said Dr. Wale.

The greatest improvement occurred with frozen embryos, with the rate of live births per frozen embryo increasing from 20% in 2010 to 30% in 2019.

Dr Simonis, in the meantime, said continued dialogue is important.

“We should always keep this conversation open with women who are not in a relationship and who would like to have a child for whom freezing eggs before the age of 35 is always preferred,” she said.

“Even though the success rate among older women has improved, we should advise them not to wait too long.”

This is a point that was also raised during the publication of the report by President Rombauts.

“This tells us that laboratory and clinical progress in antiretroviral therapy is paying off for patients,” said Professor Rombauts.

“But as this report shows, IVF success rates are always higher for younger women, and to a lesser extent for younger men, so it is important that both men and women are aware of this. ‘impact of age on fertility and that IVF cannot fully overcome infertility due to age.

Previous search suggested that about one in six Australian couples of childbearing age would have difficulty conceiving.

Estimates from the Australian Institute of Health and Welfare (AIHW) indicate that about 4.9% of all women who gave birth in Australia in 2019 received some form of assisted reproduction treatment.

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