CVS testing VS. Amnio (what I wish I had known, also LONG!)

posted 7 years ago in Babies
Post # 3
Member
7082 posts
Busy Beekeeper
  • Wedding: July 2009

I’m so glad your baby is ok and I’m glad you are able to share these issues with folks here.  Please also keep in mind that if you find a fatal anomoly and do not want to go to term, CVS gives you results still in the first trimester while your amnio happens several weeks later well into the second trimester. 

That may make a huge difference for someone considering termination…. but you are right.  Every time you test you have to consider the impact of the information you are going to learn.

Post # 4
Member
389 posts
Helper bee
  • Wedding: April 2010

I can certainly see how this would be difficult– going through both of those tests sounds pretty frightening. (CVS was frightening enough for me… 100% worth it, but still scary.) Inconclusive results or bad results were my biggest fears going into ours… so I’m amazed by any woman, who like you, has gone through inconclusive results and had to wait longer for results or had to re-test.

Anyway, one thing you mentioned confuses me. You said that you feel robbed of the chance to watch your child grow normally without worrying. You also said that while the CVS results were inconclusive (showing a mosaic, so you’d have to follow up with an amnio), the amnio came back saying the cells that were 100% baby were fine. So I’m confused why you’re still worried. Do your doctors think the mosaic was limited to the placenta or is there a chance that the amnio didn’t get enough cells to have found a mosaic? In the two mosaic cases I’ve heard of, they were able to figure it out pretty quickly, while the kids were babies, so I assume that you wouldn’t be “watching your child grow up, worrying” about the mosaic still being there… I’m no expert though, so maybe mosaics are harder to spot when it affects the genes you’ve been concerned about?

I don’t mean to be unsupportive, just confused and thinking there’s a part to the story I missed?

Post # 5
Member
389 posts
Helper bee
  • Wedding: April 2010

Just wanted to add that we opted for CVS for the same reasons that Mrs. DG mentioned. I assume that amnio is like CVS… that both are difficult emotionally and physically to go through.  Each woman making the decision whether or not to test, and whether to go with CVS or amnio just has to educate herself and make the decision that’s best for her.

Also thought I would add my mother and stepmother have had amnios and CVS tests with each of their pregnancies. My mother had both, and preferred CVS. My stepmom only had amnios. I think stories like yours and the decisions my mom and stepmom made show that we’re lucky to have options (my mom didn’t with her 1st pregnancy– only amnio since CVS wasn’t around at that time) and that every woman just has to make the choice best for them.

Post # 7
Member
7082 posts
Busy Beekeeper
  • Wedding: July 2009

ladyox- We are often able to detect Turner syndrome much earlier than puberty.  If there is any concern about your baby’s growth early on, I’d push for a chromosomal analysis… It’s a blood test… That way you don’t have to worry until puberty.  We try to identify these girls early so we can start hormonal therapy in a timely fashion.

I’m hoping that it was just an isolated mosaicism in the placenta.  Placental Mosaicsm occurs in only about 1% of fetuses… of that 1% it is estimated that only 10-40% of those fetuses will have the same mosaicsm.  Further, once you do the amnio and have a normal result, that result is accurate in 94% of cases…  The chance that your little one has Turner syndrome is going to be very very low… so hopefully you can hold on to the good news and not worry so much!  (Though as a mama, I know I’m asking the impossible!)

Post # 8
Member
19 posts
Newbee
  • Wedding: October 2011

I have 5 children first four everything was great but my last pregnancy i went thru the same thing i was scared to death the cvs came back abnormal also so we had the amnio it said everything was fine but i was worried my whole pregnancy well 6 months later the amnio was right i had a perfect baby girl. My doctor said the amnio was more accurate.. Hope all turns out well Good Luck

Post # 9
Member
8272 posts
Bumble Beekeeper
  • Wedding: August 2012

jenniferbabah:  this thread is 5 years old, I’m guessing she might not be around any longer.

I’m not familiar with the the CVS test, but they have free-cell DNA tests which can detect down syndrome and other genetic abnormalities with a simple blood draw now.

Post # 10
Member
2907 posts
Sugar bee
  • Wedding: June 2013

jenniferbabah:  At 20 weeks, you’d probably be better off with an amnio. I don’t think they do CVS later than 13 weeks. But your doctor will be able to answer that question better than any of us.

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