Originally Posted by
ShapeOfMyHeart
It was my understanding that vitrification of embryos was better than the "older" slow freeze method. In talking with my RE(and I may have misunderstood him) he had mentioned that vitrification was "harder" on compacted morulas than the older slow freeze method would be. I was a little confused by this. He did mention that they no longer freeze morulas at their clinic only blasts. He gave my morulas a 70% chance of surviving the thaw. I was wondering if you could help explain this to me why in some cases the slow freeze may be better for some stage of embryos(if this is even the case?) Thanks for and information you can give me.
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Healthy baby girl :)