One of the fancy services that CC.RM offers is PGS, otherwise known as Preimplantation Genetic Screening. This type of screening counts chromosomes and tests for certain genetic conditions, thereby confirming whether or not your embryos are chromosomally normal.
So, under this umbrella term of PGS, there are more specific types of testing, like FISH, CCS, and microarray. FISH typically screens for 9 chromosomes and is done on Day 1 after the retrieval (some clinics do this test on Day 3). A small sample of the embryo is taken, tested, and then if the results are normal, the embryos are transferred during that cycle.
CCS, the other testing that CC.RM does, is much more comprehensive. The testing is done on all 23 chromosomes, with the sample taken from the embryo on Day 5 after the retrieval (the embryos must make it to blastocysts for the test to occur). The embryos are then frozen and you wait anywhere from 2-4 weeks for the test results. The transfer is done as a frozen embryo transfer typically about 8 weeks after the retrieval.
Genetic testing is usually recommended for those couples who are either older than 37, have had multiple failed IVFs or who have had multiple miscarriages. Although Dr. S did not recommend this for us, Doc and I are almost positive that we'll go through with it. Our reasons are:
1) We'll be able to determine if this is an egg quality issue. If we get no normal embryos, this will probably be our last IVF cycle.
2) Success with CCS testing is above 70% (considering the group that typically uses CCS testing, this is awesome).
3) Many times your best looking embryos are not your chromosomally normal embryos, so if we have more than two embryos that survive, we want to know which ones will win the Darwinian race.
Alright, so enough of the science lesson for today.
I'm anxious to get this show on the road! Hopefully, with our South American vacay and the holidays coming up, the days will fly by until January.
Do genes matter?
6 days ago