Written by Steve Masler, CEO of Fertility SOURCE Companies
One of a number of recent studies of the effectiveness of frozen eggs. This study is interesting in that it compares--for donor derived eggs--vitrification vs. slow freeze, and fresh cycles vs. frozen cycles, albeit with a very small sample. The study would seem to demonstrate the comparability of vitrification and slow freeze and the superior results with frozen over fresh eggs. More studies, such as this one, are tending to appear that demonstrate the potential for frozen egg results to exceed comparable results with fresh eggs. The profession appears to be encouraged to consider more use of frozen eggs than ever before, providing more results to help determine true effectiveness and efficiency of cryopreservation for oocytes.
Please note: At this time the abstract to this article is not available.
Tuesday, December 2, 2008
Donor egg banking: deliveries from cryopreserved donor oocytes-a new paradigm for egg donation?
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2 comments:
Is there higher sucess rate with a specific method? Thanks.
There have been many recent studies of versions of the slow freeze and of the vitrification methods of cyropreservation of oocytes. There is not yet any consensus for which method yields the best results, though this writer believes that the trend is toward vitrification. However, there are a number of prominent practitioners who favor the slow freeze method. There are other parameters involved in the decision as to which method to employ besides outright success (measured by implantation rates, pregnancies or births). At this early stage of the more widespread use of oocyte cyropreservation, the commentator would be wise to speak with practitioners offering each method and make his/her own conclusion.
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