Embryos refrozen-thawed by vitrification lead to live births: Case report
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Springer Nature
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Objective: To describe two successful cases of utilizing refrozen blastocysts by vitrification derived from supernumerary embryos. Design: Case report. Setting: Private fertility clinic. Subjects: Two infertility couple. Interventions: Refrozen blastocysts by vitrification derived from supernumerary embryos. Main outcome measures: Obstetric and pediatric results. Results: Two pregnancies obtained from refrozen-warmed blastocysts led to two healthy babies being born without clinical or genetic problems. Conclusion: These case reports support the notion of safely repeating cryopreservation. However, despite these favorable results, there is still a need for prospective controlled studies on the obstetric and neonatal repercussions of refreezing and of vitrification in particular. © 2010 Middle East Fertility Society.
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Cryopreservation , Frozen embryo transfer , Refrozen embryos , Vitrification , adult , blastocyst , case report , cell cycle phase , cell viability , clinical protocol , cryopreservation , density gradient centrifugation , embryo culture , embryo transfer , female , female infertility , fertilization in vitro , freeze thawing , human , intermethod comparison , live birth , medical history , phase transition , pregnancy outcome , repeat procedure , vitrification
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Inglês
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Middle East Fertility Society Journal, v. 16, n. 1, p. 93-97, 2011.
