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Revista chilena de obstetricia y ginecología
versión On-line ISSN 0717-7526
SCHWARZE M, Juan Enrique et al. Vitrificación ovocitaria para posponer fecundidad: experiencia de la Unidad de Medicina Reproductiva de Clínica Monteblanco. Rev. chil. obstet. ginecol. [online]. 2012, vol.77, n.4, pp.286-290. ISSN 0717-7526. http://dx.doi.org/10.4067/S0717-75262012000400008.
Background: The postponement of pregnancy responds to several medical and social reassons. Oocy-te vitrification is a relatively simple and promising technique for this purpose. Objective: To illustrate the experience at the Reproductive Medicina Unit of Monteblanco of cases of women who underwent oocyte vitrification and attempted later to get pregnant. Methods: We reviewed all cases of oocyte vitrification with later attempt of pregnancy since 2007. Results: In the studied period, 20 cycles of oocyte vitrification were registered, thereof 22 women attempted a pregnancy after that. Median age at vitrification was 36 years old. Ten patient did not underwent embryo transfer, either by fertilization failure (4 patients) or detention of embryonic development (6 patients). Six of 12 patients that underwent embryo transfer, achieved pregnancy. Discussion: We report the first series of vitrification cases with posterior attempt of pregnancy in Chile; 12 of 20 women underwent embryo transfer and 6 of them got pregnant. Young women had a more oocytes, embryos and a better chance to achieve pregnancy. Conclusion: Despite the fact that vitrification is not the final solution for today's postponement of fertility, it represents a useful alternative for these cases.
Palabras clave : Oocyte vitrification; oocyte cryopreservation; postponement of fertility.