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Thank you so much for your informative reply, Dr. Smith. I guess only time will tell. I won't get my hopes up too much at this point. I'll let you know the outcome in a couple of weeks. |
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Dr. Smith, |
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Fragmentation usually shows up early, in the first couple of days. The fact that the embryo reached the 4-cell stage without exhibiting framentation indicates that what you saw on Day 4 were true cells, not fragments. The cells get pretty smal by the time the embryo reaches the morula stage and can be confused with fragments if you don't know how much fragmentation was present at the earlier developmental stages (confusing even for embryologists). I would be more confident if the embryo had initiated the compaction process prior to transfer, but as such, a morula on Day 4 is considered developmentally "on time". |
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Allison: |
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Thanks for the answer. We consulted another RE who seems confidant that the stimulation was way too long and that the eggs must have been post-mature. He doesn't think that it is right that my follicles need to be so big for the eggs to maure. Do you think this could be the case? Would this type of result -- no fertilization at all (7 eggs) with ICSI be consistent with eggs that are post-mature? |
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Yes to both questions, but hindsight is 20/20. Failed fertilization due to post-maturity usually occurs with conventional IVF insemination, not with ICSI. That's why I didn't menion it in my previous post, but it is possible. |
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I have just finished my 5th round of IVF however this time they also included PGS (Pre Genetic Screening). I am 34 years of age however due to operations have blocked tubes. My issue has always been the growth rate of the embryos they only ever seem to become 4 cell on day 3. This time round they carried out a biopsy on 4 embryos on day 3 however they were only 4 cells. So by removing one cell from each embryo they could check the chromosomes (genetic make up). On day 4 they result came back as normal however they had only gone on to the 6 cell stage 2 have been put back & I now have the dreaded 2 week wait....Can anybody offer any advice or even maybe some encouragement I don't know If i can go through it again. |
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Dr. Doom-n-Gloom here. I know you are looking for encouragement, but I play the part of a realist on this board. If you're emotionally up to it, let me know. I'll give you the objective, scientific point of view. If you're not emotionally up to it, that's O.K. too. Waiting for the pregnancy test can be the worst part of the whole process. I understand. I don't want to contribute to your woes by giving you cold facts when you need warm feelings. Best of luck. |
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Dr. Smith, |
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A paternal DNA problem doesn't really explain what you observed, since abnormal paternal DNA usually causes arrested embryo development later on (i.e. Day 4-5, or later during the first trimester of pregnancy). So I agree with you that a comprehensive genetic analysis of the sperm may not be worthwhile. Of course, it can't hurt either (except your wallet). |
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Dr. Smith, thank you so much for your thorough reply. I honestly don’t think there is a problem with the sperm, but his reasoning was that since they can’t genetically test the eggs (other than from the PGD), it would show where the genetic abnormality came from by ommission or confirmation and it’s a pretty easy test to do, so why not, but my feeling is why if it’s not necessary. |
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PGD is a very superficial genetic analysis. Of the 23 pairs of chromosomes, PGD can evalauate a maximum of 9 to determine if there's one extra or one short. That leaves 14 other chromosome pairs that could make trouble. In addition, the number of chromosomes in a embryo is only the tip of the iceberg from a genetic point of view. Subtle genetic defects (like single gene mutations) can lead to miscarriage and these cannot be identified with PGD at present. I think that PGD is being over-pitched by the ART community. It has become the "next big thing" in assisted reproductive technology, but in actuality, it is a very crude tool to determine the genetic normalicy of an embryo. Although PGD can reduce the chance of miscarriage in women with recurrent miscarriage, PGD does not prevent miscarriages altogether (not by a long shot). Beware the PGD sales pitch. |
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Thanks again Dr. Smith, I think I will get a second opinion. It definitely can't hurt. WOW -- 6-8 inches of snow! I won't even say what the weather is like here, but I'd actually rather be in NYC, I love it there! Take care. |
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Perhaps you could evaluate this situation for me... |
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Dr Smith, |
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The major difference between cycles 1-2 and the third one is the absence of Lupron. Apparently, you respond better without Lupron. Some folks do and it looks like you're one of them. You new doctor gavit a try without Lupron and you had a better (more physiological) stimulation that resulted in better embryo development. Embryos at the compacted morula stage on Day 5 are within the expected range. When we observe this in our program, we wait until the morning of Day 6 to be sure they have reached the blastocyst stage before transferring them. They usually do, so no harm was done by transferring them on Day 5 at the compacted morula stage. However, the 8-cell had arrested, so there was no point to transferring that embryo. |
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