Frozen embryos 'boost for IVF'

Frozen embryos are more likely to produce successful, complication-free IVF pregnancies than those that are fresh, research suggests.

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Freezing all embryos would be 'catastrophic'

I'd have to sound a cautious note about suggesting that all IVF embryos should be frozen, because the study doesn't support that.

It only looked at successful frozen cycles. What it does do is give support to the idea that transferring one fresh embryo and freezing the others is okay.

Freezing all embryos would have a catastrophic effect on pregnancy rates.

– Allan Pacey, Department of Reproductive and Developmental Medicine, University of Sheffield

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