Objective To investigate the pregnant outcome after non-elective single embryo transfer.

目的探讨单胚胎移植的妊娠结局及可行性。

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Countries like Sweden have shown that it is possible to move to single embryo transfer without reducing the pregnancy rate.

瑞典等国的实践已表明，在不降低受孕率的情况下移植单个胚胎是可能的。

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These data should also encourage clinics to evaluate their embryo transfer policy and adopt single embryo transfer as their everyday practice for women younger than 40.

这些数据也促进临床重新考虑他们的胚胎移植方案，对小于40岁的女性采用单胚胎移植应该成为治疗常规。

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But she said more evidence was needed before the HFEA recommended a move to single embryo transfer.

BBC: IVF 'should use one embryo'

Dr Diane De Neubourg, from the Centre for Reproductive Medicine, Antwerp, presented work showing that single embryo transfer produces babies that are healthier than those born after multiple implantations.

BBC: NEWS | Health | IVF multiple births 'drain NHS'

She said she would recommend all European countries introduced the single embryo transfer as standard for women in this group - under 36, in their first or second cycles who have good quality embryos.

BBC: IVF 'should use one embryo'