Cryopreservation of Embryos and Oocytes in Human Assisted Reproduction | Zendy

János Konc | Zendy; Katalin Kanyó | Zendy; Rita Kriston | Zendy; Bence Somoskői | Zendy; Sándor Cseh | Zendy

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Cryopreservation of Embryos and Oocytes in Human Assisted Reproduction

Author(s) -

János Konc,

Katalin Kanyó,

Rita Kriston,

Bence Somoskői,

Sándor Cseh

Publication year - 2014

Publication title -

biomed research international

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.772

H-Index - 126

eISSN - 2314-6141

pISSN - 2314-6133

DOI - 10.1155/2014/307268

Subject(s) - cryopreservation , oocyte cryopreservation , embryo cryopreservation , embryo , vitrification , andrology , embryo donation , fertility preservation , embryo transfer , oocyte , human reproduction , reproduction , biology , gynecology , egg donation , fertility , medicine , microbiology and biotechnology , population , anatomy , genetics , environmental health

Both sperm and embryo cryopreservation have become routine procedures in human assisted reproduction and oocyte cryopreservation is being introduced into clinical practice and is getting more and more widely used. Embryo cryopreservation has decreased the number of fresh embryo transfers and maximized the effectiveness of the IVF cycle. The data shows that women who had transfers of fresh and frozen embryos obtained 8% additional births by using their cryopreserved embryos. Oocyte cryopreservation offers more advantages compared to embryo freezing, such as fertility preservation in women at risk of losing fertility due to oncological treatment or chronic disease, egg donation, and postponing childbirth, and eliminates religious and/or other ethical, legal, and moral concerns of embryo freezing. In this review, the basic principles, methodology, and practical experiences as well as safety and other aspects concerning slow cooling and ultrarapid cooling (vitrification) of human embryos and oocytes are summarized.

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