Artículos de revistas
Embryos refrozen-thawed by vitrification lead to live births: Case report
Middle East Fertility Society Journal, v. 16, n. 1, p. 93-97, 2011.
Research and Training
Universidade Estadual Paulista (UNESP)
University of Schleswig-Holstein
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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