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  1. #1
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    Default High nuchal translucency measurment

    Hi

    I'm 16 weeks pregnant. At 12 weeks, we had a nuchal scan with a nuchal measurement of 6.8mm, which made us 1:2 risk of Down Syndrome. We had a CVS which has now cleared us for Downs and all the other chromosomal abnormalities that they look at. But because of the high nuchal reading, there is a high chance that there will be something wrong with the baby. We've been told there's only about a 30% chance it will be born alive and well. The most common problems seem to be cardiac related, but there's also a whole range of other problems that apparently coincide with a high nuchal reading.

    We had a further scan at 15 weeks, and everything looked normal.

    We've done some research ourselves and discussed the situation with the ultrasound doctor. But it is difficult to understand what the risks really are, as such a high reading seems very uncommon.

    There is some suggestion that there is much less likely to be any problems if the 20 week scan and a heart scan at 24 weeks are normal.

    Has anyone been in a similar position, or know anything about this? We're having a terrible time trying to come to a decision as to whether we should terminate -either now, or if further scans show a problem - or proceed with the pregnancy.

    Many thanks

  2. #2
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    Hi Shamara,

    you sound like me a few weeks ago!
    From start to finish this is what I've had
    12w - NT 7.7mm with high levels in 10weeks blood test gave 1in 5 of downs.
    14w - CVS - the quick test showed that 30% of cells had a monosomy and the rest were normal but the long term culture came back negative.
    18w - genetic counselling and an amnio. Amnio came back normally.
    20w and 24w - ultrasounds - came back normal. The doctors focused on the heart and they were happy it was clean - esp good as my brothers baby has just been born with a major heart defect.

    At my last scan they told me that essentially I don't have to go to the specialists anymore (thank goodness - 800k round trip) but we will need a growth scan a bit later. My ob is happy with how I am going and see's no reason to worry now.

    I know it sounds terrible to say this but depending on what state you are in they can terminate quite late if they find medical problems. In Vic its up to 40 weeks - that scares me!

    If you want to talk more PM me, I'm happy to chat. Also it might be worthwhile making sure they keep tabs on the NT with the next few scans. There is every possibility it is nor normal. And google a condition called cystic hygroma - this can cause high NT.

  3. #3
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    This sounds so much like what we went through with our baby Seth. Our amnio came back clear (he was 1:20 for Trisomy 21), but then at 19 weeks he still had a way above average nuchal thickness. I heard so many times that there would probably be something wrong - they just couldn't see what. At 24 weeks another scan found him to be fine and same at 30 weeks. Heart was clear and no fluid found. He was born perfect at 38 weeks and my goodness - he has the fattest neck ever! I kid you not - he has this big roll of fat on the back of his neck right where they take the nuchal measurement. We too considered having to terminate the pregnancy early on. Thank goodness we didn't - our bub is chubby , but he's perfect. I know it's a terribly stressful position to be in, always wondering what could be wrong - I still look for things in Seth. But take the tests and let the results speak to you. It looks good so far.

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    Guess this just proves that it always helps to talk to people. There are way more people out there that have gone through something similar.

    My aunt is a sonographer and she went to a conference recently where they essentially suggested that NT measurements are way overated. I reckon they must be getting more figures about normal babies with high NT's.

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    My sons measurement was only 4.1 but gave me a high risk factor. Amnio normal and normal morph scan even though the ob was concerned they would still find something. My son had a big fat roll on the back of his neck when born but its gone now at 19 months. Good luck with the next scan.

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    Thanks so much for your responses! It is good to know we're not alone in this, and that you've all had positive outcomes

    An update on us - our obstetrician referred us to a specialist in fetal maternal medicine who was much more positive about the chances of a good outcome and thought it would be "absolutely premature" to terminate at 16 weeks with no anomalies showing other than the high nuchal. With that, we were happy to proceed down the path of waiting to see what the later scans showed. It was an immense relief not to have to wrestle any longer with whether we should terminate a possibly healthy baby who we dearly wanted.

    We've now had a normal scan at 18 weeks with a nuchal thickness of 4.8 which is apparently back within normal range, and we're having a scan to look closely at the heart tomorrow (19 weeks). If no problems show up there, we put all of this behind us and get back to celebrating the pregnancy - that's the theory at least...

    Amyd - I was interested to hear your aunt's comments that the high readings might be overrated. Certainly our specialist, who was more experienced in dealing with high readings than any of the other doctors we've spoken to, was less concerned about the high reading in itself. He said "some babies just have fat necks"! I hope too that your brother's baby is doing well.

    Thanks again for your responses and good wishes.

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    Our heart scan didn't show any anomalies, so things are looking good so far. Such a relief.

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    That's wonderful news!! Try to relax now and enjoy your pregnancy. Don't worry if you still feel worried about it - like I said, Seth is now nearly 6 months and I still look for something in him that could be wrong. I think it's normal to feel a little bit uncertain. It's a really scary time that you've been through.

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    That's great news. Try and relax and enjoy the rest of the pregnancy.

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    Default Out come at birth

    I saw post about the same situation I am currently in. We are scheduled to terminate the pregnancy on Tues but after reading this board I've changed my mind. I'm hoping to hear back about how the babies are doing now that they are born.

    Thank you,

    Jamie


 

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