In-vitro fertilisation and risk of multiple pregnancy.
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- Record sourced from PubMed, PMID 11812563.
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Abstract
There is concern about the medical, social, and economic consequences of multiple pregnancy after in-vitro fertilisation (IVF). The most effective way to limit the risk of such a pregnancy is to replace only one or two embryos simultaneously. This strategy, however, is thought to reduce pregnancy rates. We analysed the rates of multiple pregnancies and live-births in all clinics in the UK in relation to their elective two-embryo transfer (ETT) policies. Our results suggest that replacement of two embryos eliminates the chance of triplets without affecting overall success rates.