期刊
BEST PRACTICE & RESEARCH CLINICAL OBSTETRICS & GYNAECOLOGY
卷 28, 期 2, 页码 191-199出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.bpobgyn.2013.11.005
关键词
assisted reproduction technology; in-vitro fertilisation; multiple pregnancy; elective single embryo transfer
Multiple pregnancy, a complication of assisted reproduction technology, is associated with poorer maternal and perinatal outcomes. The primary reason behind this is the strategy of replacing more than one embryo during an assisted reproduction technology cycle to maximise pregnancy rates. The solution to this problem is to reduce the number of embryos transferred during invitro fertilisation. The transition from triple-to double-embryo transfer, which decreased the risk of triplets without compromising pregnancy rates, was easily implemented. The adoption of a single embryo transfer policy has been slow because of concerns about impaired pregnancy rates in a fresh assisted reproduction technology cycle. Widespread availability of effective cryopreservation programmes means that elective single embryo transfer, along with subsequent frozen embryo transfers, could provide a way forward. Any such strategy will need to consider couples' preferences and existing funding policies, both of which have a profound influence on decision making around embryo transfer. (C) 2013 Elsevier Ltd. All rights reserved.
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