Is there an increased risk of M/C with a nuchal scan? If so, why?

[MaHumbug]

My sister is pg, had a MC over a year ago and of course doesn't want to harm the baby.

I can't see why it is any differnet to any other scan.

She isn't able to have a 12 week scan unless she has a nuchal but also wants to have a scan to know that the baby is developing.

Thanks.

No, there's no increased risk. A neuchal scan is just the same as any other ultrasound scan, except that it is done between 11-13 weeks so they can measure the amount of fluid at the back of the neck, the presence or absence of a nasal bone and have a look at the heart - all these things can signify whether or not to go for further tests as they are markers for chromosomal abnormalities.

There have been many, many studies of the safety of ultrasound scans in pregnancy and no increase in the miscarriage rate has ever been shown.

This is what I have told my sis but she said she has seen on the internet that there is a 1% chancce of mc.

I've looked on NHS choices and the miscarriage association but no joy as to where she could have seen this advice.

I have had the nuchal scan done with both dds so I know that it is the same as a normal scan.

I suppose what I am after is a link which specifically says there is no extra risk in having a nuchal than there would be with a dating scan.

Could your sister possibly be thinking about CVS and amniocentisis? I've definitely read of a 1% risk of M/C with those tests, but that's because they're invasive as they involve needles. A nuchal scan is just the same as any other ultrasound scan, as bearcrumble says. If she refuses a nuchal ultrasound then she'd presumably have to wait til the anomaly ultrasound scan at 20 weeks to see her baby...

No, she's confused. The 1% chance of miscarriage is with an amniocentisis - ie the test they do if the neuchal scan is abnormal (you know when they put a needle into the uterus and take some of the amniotic fluid).

She doesn't have to have an amnio if she doesn't want to.

No, Bear is right. She'd have the scan anyway in most PCTs, but the sonographer will spend a little more time measuring the back of the neck.

Tis uber non-invasive.

She doesn't have to have it of course, espesh if she wouldn't have a problem with a DS child.

Soz, x-postarama.

a scan is a scan. The only difference is what they are checking. Some - to check there is a baby still there, some to do the nuchal check. at 20 weeks they are checking everything is where it supposed to be etc....

The 1% risk is from the amniocentis (SP)test which is invasive. You would only have that if the blood work and nuchal scan indicated that there might be a problem. CV sampling I think has a higher risk of miscarriage 3-4% I think I am not an expert just an older mum remembering the blurb about ante natal testing when I had my last baby in 2008
The nuchal scan is just a more detailed ultra sound, not invasive at all.
Hope everything goes well in your sister's pregnancy

Thanks for your help.

I just need to put her mind at rest and help her.

Thanks for your help last night, I rang her this morning but she had spent a sleepless night looking on the internet and found that she had misread the information.