Single embryo transfer: a mini-review | Zendy

Christina Bergh | Zendy

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Single embryo transfer: a mini-review

Author(s) -

Christina Bergh

Publication year - 2005

Publication title -

human reproduction

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.446

H-Index - 226

eISSN - 1460-2350

pISSN - 0268-1161

DOI - 10.1093/humrep/deh744

Subject(s) - randomized controlled trial , observational study , embryo transfer , single embryo transfer , pregnancy rate , pregnancy , gynecology , live birth , embryo , obstetrics , medicine , biology , surgery , genetics

This paper provides a concise review of single embryo transfer (SET) in cycles using fresh embryos as well as in cycles using frozen-thawed embryos. Relevant studies were identified by a computerized search in PubMed for the period 1995-2004. The pregnancy rates, delivery rates and multiple pregnancy/birth rates were evaluated after fresh or frozen embryo transfer as well as cumulative delivery rates after fresh and frozen SET. The results of four randomized controlled trials (RCT) and seven observational studies using fresh embryo transfers are analysed. No RCT with SET in freezing-thawing cycles was identified, while one observational study was identified. The effects of a change in the rules from the National Board of Health and Welfare in Sweden in 2003 regarding the implementation of SET in Sweden are summarized.

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