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August 29, 2017

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Miranda

Just chiming in to say that I hear and share your skepticism! I did PGS (CCS) and got pregnant with a euploid embryo - but discovered a missed miscarriage at our 13 week ultrasound to do an NT scan. Though I knew miscarriage was possible, I was still blindsided, and even more so when testing of the fetus after D&C showed that he had trisomy 18. My clinic explained that this was rare, but that the embryo was likely mosaic and healthy cells happened to be removed and tested during CCS. I also recommend checking out the NY Mag article. It helped me make a little peace with what happened, because at least my embryo got a chance to correct in utero, rather than being discarded right off the bat. Despite this experience, I did choose to test again in my next cycle and now have a healthy baby. It is so tough.

Don't Count Your Eggs

Thanks to everyone for commenting on this-- it's helpful and informative! And I just saw that NY Mag art but haven't sat down with it...very curious.

Deb

Did you see the article on aneuploid embryos in NYMag? Take a look. I thought of this post when reading it.

Jen

I'm so glad you brought up this topic. We did PGS (or CCS - Comprehensive Chromosomal Screening) so that I could avoid additional miscarriages (we were told there was a 6% chance of miscarriage). What I didn't realize was that miscarriage was defined as having seen a heartbeat on an ultrasound prior. Because we already had a son, and because we knew we had a male and female embryo that were almost the same quality, we chose the female (although she was slightly less quality). I had a low beta of 47, then it just decreased. I was floored. I couldn't understand why it didn't work if we paid $7,000. Not to mention I was devastated that we weren't going to get our girl. Our male embryo was better quality, and was a successful transfer. He's the sweetest, kindest little boy. I always advise people to transfer their best quality embryo, no matter what. And to this day, I question if CCS is legitimate and worth it. Best wishes to you!

Deb

Also, like Jojo, I've had miscarried material tested as totally normal. So I don't think the screening is very informative.

I also wanted to add good luck! I'm excited to hear about your experience, and hope Momo meets her sybbling soon!

Deb

I am absolutely uninformed (not a doctor or scientist), but I am skeptical of PGS, apart from the screening for specific genetic diseases (PGD) that are a known problem that could be inherited from one or more parents. From what I've heard, mosaicism makes the results suspect. Lots of embryos are mosaics of more than one gene line. So the test can indicate abnormality when the embryo will in fact shed the abnormal cells, or normalcy when the abnormals will take over. Although my logic is contradictory on this point, I'm also wary of taking even a single cell off of a small embryo for testing, for fear it's an important one. Does that make sense?

JL

How timely. My husband and I are about to start our 2nd IVF cycle and PGS/PGD testing is the next recommended option. We really, really struggled with making a decision. Mostly since it's still considered experimental, and there are no guarantees as you mention. It really seems like an add-on for people who can afford it. We can't really, but have decided that this will be our last cycle so we'll pursue the testing provided my doctor is able to retrieve more than 3 embryos (the number we retrieved last time). I am 38 (39 in Jan), have unexplained IF, have never been pregnant, and have never miscarried. After everything we've been through, it still feels like a total crapshoot.

R

I've never posted but just wanted to say that PGS is where chromosomes are screened and PGD is to check for specific genetic disorders when the parents know that they are carriers and/or have an affected child. While the "S" is for screening and not necessarily accurate or diagnostic (i.e., an embryo can seem "normal" or "abnormal" but who knows how'd it'd actually turn out if implanted), the "D" is for diagnosis and fairly accurate indicator of whether a future child would have the genetic disorder.

Jojo

I am mixed on this. I miscarried a genetically normal embryo which was a shock at the time. I thought the point of testing was you avoided a miscarriage. Then, when we moved to donor eggs, testing helped me at least get better odds of success per transfer. So really my opinion is, do it if you have the money and resources but know going in that it is not a guarantee. Hope this next step finally ends your IF journey!

Pamela O

Wishing you every possible luck on this next step! I know there's a lot of pressure on this wonderful embryo (and I was pretty devastated when I lost a twin early on in this donor embryo pregnancy, knowing it was the other child's only chance at a genetic sibling), but I'm also excited to see what new and unique scenario will lead us to our second child (provided this one makes it to the point of becoming an actual baby... after two losses it's really hard to count any chickens).

But I really hope your Plan A pans out this time :)

We did PGS during our first try at IVF, and both of our blastocysts were complex abnormal. I was glad I did it then, it saved us a lot of time and grief. We didn't screen the next four embryos (just transferred them 2 by 2), and one was a BFN, the other a miscarriage at 6 weeks... with what out to be chromosomally normal "products of conception." Go figure.

So you really never know. It seems with most donor embryos, the odds are pretty good anyway, but even the most beautiful embryo on the block from a 23-year-old egg can be totally incompatible with life. (Yep, I also miscarried one of those. Didn't screen before or after. Just kept on transferring.)

So many hard decisions. I just wish everyone the best.

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