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Case report: Two successful pregnancies following the transfer of re-vitrified human day 7 blastocysts developed from vitrified cleaved embryos

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Abstract

Purpose

To report successful pregnancies after the transfer of re-vitrified human day 7 blastocysts developed from vitrified cleaved embryos.

Methods and results

A total of five day 7 blastocysts developed from vitrified cleaved embryos were re-vitrified and re-warmed. All of five re-vitrified day 7 blastocysts (100%) survived after warming and were transferred to three patients. Two of the women became clinically pregnant. Of these women, one woman delivered a healthy baby and the other pregnancy is ongoing at 26 weeks of gestation.

Conclusions

This is the first report of successful pregnancies after the transfer of re-vitrified human day 7 blastocysts developed from vitrified cleaved embryos.

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Correspondence to Kenichiro Hiraoka.

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Capsule Two cases of successful pregnancies were obtained following the transfer of re-vitrified human day 7 blastocysts developed from vitrified cleaved embryos from three transfers

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Hiraoka, K., Fujimoto, Y., Tateaki, Y. et al. Case report: Two successful pregnancies following the transfer of re-vitrified human day 7 blastocysts developed from vitrified cleaved embryos. J Assist Reprod Genet 25, 503–509 (2008). https://doi.org/10.1007/s10815-008-9259-5

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  • DOI: https://doi.org/10.1007/s10815-008-9259-5

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