File:Assisted reproductive technology in Australia and New Zealand 2017.jpg

Assisted reproductive technology in Australia and New Zealand 2017

Assisted reproductive technology (ART) is a group of procedures that involve the in vitro (outside of body) handling of human oocytes (eggs) and sperm or embryos for the purposes of establishing a pregnancy. Each ART treatment involves a number of stages and is generally referred to as an ART treatment cycle. The embryos transferred to a woman can either originate from the cycle in which they were created (fresh cycle) or be frozen (cryopreserved) and thawed before transfer (thaw cycle).

There were 82,215 ART treatment cycles reported from Australian and New Zealand fertility clinics in 2017 (74,942 and 7,273 respectively), representing an increase of 0.8% in Australia and 8.5% in New Zealand from 2016. This equates to 14.8 cycles per 1,000 women of reproductive age (15–44 years) in Australia, compared with 7.6 cycles per 1,000 women of reproductive age in New Zealand. Women used their own oocytes or embryos (autologous cycles) in 94.1% of treatments. Embryos and oocytes that had been frozen and thawed were used in 38.5% of autologous cycles.

There were 40,375 women who undertook 77,353 autologous fresh and/or thaw cycles in Australia and New Zealand in 2017. On average, 1.9 autologous fresh and/or thaw cycles per woman were undertaken in 2017, with more cycles per woman in Australia (1.9 cycles per woman) than in New Zealand (1.7 cycles per woman). The number of cycles where embryos were selected using preimplantation genetic testing (PGT) increased by 23.5% from 7,425 in 2016 to 9,169 in 2017.

Over the last five years the proportion of cycles where all oocytes or embryos were cryopreserved for potential future use (freeze-all cycles) has more than doubled from 10.5% of initiated fresh cycles in 2013 to 24.2% in 2017. This practice is used for a variety of reasons, including reducing the risk of ovarian hyperstimulation syndrome (OHSS), improving endometrial - embryo synchronicity, as part of a PGT cycle or for fertility preservation.

Links: Assisted Reproductive Technology | Australian Statistics

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Reference

Newman JE, Fitzgerald O, Paul RC, Chambers GM 2019. Assisted reproductive technology in Australia and New Zealand 2017. Sydney: National Perinatal Epidemiology and Statistics Unit, the University of New South Wales Sydney.

Cite this page: Hill, M.A. (2024, April 23) Embryology Assisted reproductive technology in Australia and New Zealand 2017.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Assisted_reproductive_technology_in_Australia_and_New_Zealand_2017.jpg

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