Recent studies suggest that in fresh single IVF cycles optimum results can be achieved with as few as nine oocytes retrieved. This is in contrast to results in cumulative cycles, where the more oocytes, apparently, the better.

The volume of genetic information available about individuals is now so vast that protecting the anonymity of sperm or egg donors and the children conceived from their donation can no longer be guaranteed by law.

A new cohort study suggests a higher risk of pre-eclampsia from frozen embryos transferred in cycles programmed with hormone therapy than in natural cycles.

Fertilisation was the subject of an invited session eloquently bringing to life its very beginnings. Two outstanding speakers reviewed events documented in research and clinical laboratories covering the fusion of gametes and the 24 hours thereafter.

Our knowledge of Robert Edwards comes from a mix of anecdote, brief encounters, autobiographical snatches and occasional scholarly research. Now, his former student Roger Gosden has completed the first authorised biography of ESHRE's founder, reviewed here by Simon Brown, editor of Focus on Reproduction.

A cohort study cross-linking two Danish registries finds positive correlation between infertility-related stress levels and prescribed medication over a ten-year follow-up period.

Topics in this third review of embryology sessions from the oral presentation programme in Vienna include the timing of embryo transfer, extended embryo culture, paternal age, embryo arrest, and the effect of trophectoderm morphology grade - from Session 78.

Following a flurry of studies suggesting maternal and neonatal complications in ART, a new cohort analysis finds a higher incidence of pre-eclampsia in pregnancies following PGT than without PGT.

Draft legislation expected to become law later this year will extend fertility treatment rights to single and lesbian women, allow elective egg freezing, and also remove strict anonymity requirements for sperm donation.

In this second review of embryology sessions in Vienna, we report from a selected oral communications session on time-lapse imaging. Six speakers presented their data on embryo assessment using various morphokinetic parameters to support their predictive value in embryo selection for transfer.