Oocyte Vitrification: A Comparative Analysis Between Fresh and Cryopreserved Oocytes in an Oocyte Donation Program

Outcomes of Fresh and Cryopreserved Oocyte Donation.

From fresh heterologous oocyte donation to autologous oocyte banking

INTRODUCTION Today, oocyte donation has become well established, giving rise to thousands of children born worldwide annually. The introduction of oocyte cryopreservation through vitrification allows the introduction of egg banking, improving the efficiency and comfort of oocyte donation. Moreover, the vitrification technique can now enable autologous donation of oocytes to prevent future infer...

How does vitrification affect oocyte viability in oocyte donation cycles? A prospective study to compare outcomes achieved with fresh versus vitrified sibling oocytes.

STUDY QUESTION How does vitrification affect oocyte viability? SUMMARY ANSWER Vitrification does not affect oocyte viability in oocyte donation cycles. WHAT IS KNOWN ALREADY Oocyte vitrification is performed routinely and successfully in IVF and oocyte donation programs. STUDY DESIGN, SIZE, DURATION This is a prospective study performed between June 2009 and February 2012 to compare ongoi...

Efficacy of oocyte vitrification combined with blastocyst stage transfer in an egg donation program.

BACKGROUND A successful oocyte vitrification program is important for women with various indications for assisted reproduction technology. The objective of this study was to report the outcome of vitrification of oocytes, obtained through an oocyte donation program, by evaluating the embryo development, pregnancy and implantation rates (IRs) after blastocyst transfer. METHODS A total of 1098 oo...

Oocyte Donation: an Overview

The use of donor oocytes has expanded the scope of assisted reproductive technology (ART) for women with poor oocyte quantity and quality. In vitro fertilisation with oocyte donation (IVF-OD) is considered to give better implantation, pregnancy, and livebirth rates compared to IVF with autologous oocytes. Maternal age, infertility factors, BMI, smoker status, and ethnicity reduce reproductive o...