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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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Publisher Springer
Date 2008 Oct 15
PMID 18853246
Citations 5
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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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