The births of five Spanish babies from cryopreserved donated oocytes | Zendy

N. Fosas | Zendy

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The births of five Spanish babies from cryopreserved donated oocytes

Author(s) -

N. Fosas

Publication year - 2003

Publication title -

human reproduction

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.446

H-Index - 226

eISSN - 1460-2350

pISSN - 0268-1161

DOI - 10.1093/humrep/deg297

Subject(s) - cryopreservation , oocyte cryopreservation , andrology , oocyte , human fertilization , biology , gynecology , medicine , embryo , fertility , anatomy , population , fertility preservation , genetics , environmental health

The technique of freezing oocytes is still not widely used. Reasons cited for this include the technique's low efficacy and the risk of aneuploidy. However, the introduction of technical changes (the type and concentration of cryoprotective substances; slow freezing and rapid thawing; and fertilization by ICSI) has led to improved results. We present four pregnancies obtained using mature oocytes (in metaphase II) that had been frozen and thawed. The oocytes were donated by young women who were not patients.

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