I talked to the head embryologist today about my 4AA frozen blast from my previous cycle. I verified that it was vitrified and not slow frozen, so that's good. I asked him what kind of stress would be put on this embryo to thaw it, biopsy it and revitrify it. He said that is hard to quantify into a percentage but they have done this about a dozen times, the embryos have always survived and that they haven't lost any. He said the unknown is if it affects implantation, though they have had ones that did implant.
Vitrification is so new that they just don't have a lot of data on this. Many patients are opting to biopsy their previously slow frozen embryos so they can know which ones to transfer and avoid unsuccessful FETs. He said his gut feeling is that it would be fine.
If we biopsy it today, it will be at no additional cost because it will be included in our current cycle. If we choose to biopsy it at a later date, it will cost $5000! We gave him the go ahead to biopsy it. We both just really want to know so that we can make a more informed decision when it comes to transfer.
I had my embryo report faxed to me, here's the final results:
|#||Day 3||Day 5||Day 6|
|1||10-cell grade 4-|| ||Arrested|
|2||10-cell grade 3+|| ||Arrested|
|3||9-cell grade 4|| ||Arrested|
|4||8-cell grade 4||4AA Blast, Biopsied, Vitrified|| |
|5||8-cell grade 4|| ||Early Level 2 Blast, Poor Quality, Arrested|
|6||8-cell grade 4-|| ||Arrested|
|7||7-cell grade 4-||Morula||4BB Blast, Biopsied, Vitrified|
|8||7-cell grade 3 (fertilized late)|| ||Arrested|
|9||6-cell grade 4-||Compacting||4BB Blast, Biopsied, Vitrified|
|10||5-cell grade 3+|| ||Arrested|
|11||4-cell grade 4|| ||Early Level 1 Blast, Poor Quality, Arrested|
|IVF#3||6-cell grade 4-||Early Level 1 Blast||4AA Blast, Vitrified, Thawed, Biopsied, Vitrified|
Pretty interesting seeing which embryos on day 3 made the cut. I guess greater than 8 cells does not equal a better embryo, and don't underestimate the slow pokes.
Let the countdown begin...
PS... thanks Friends/Family for your cheery comments!!!
******************** Update ********************
The lab called and said my embryo thawed beautifully, was biopsied and revitrified. They said its grade remains a 4AA. Wahoo!