IVF has best chance of success in spring
PLANTS burst into life in spring and that might be true for people, too. So says a study on seasonal success rates of IVF, presented at the World Congress on Fertility and Sterility in Munich, Germany, this week.
A team led by Daniela Braga of the Assisted Fertilisation Centre in São Paulo, Brazil, measured hormone levels in 1932 women undergoing IVF treatment. They found that levels of oestradiol - which is vital for reproduction - were significantly higher in the spring, and correlated with a 45 per cent higher fertilisation rate during this season.
Another survey presented at the conference, by the International Federation of Fertility Societies, highlighted the lack of consistent global safety standards for IVF. Ian Cooke of the IFFS, who co-authored the survey, is now developing an international code of practice.