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nuchal scan - what do you think?

(38 Posts)
PrincessPeaHead Thu 14-Jul-05 15:05:33

Just had mine. Risk for maternal age 167. Adjusted risk 411. Which sounds low to me but I think it is just because the numbers fall off a cliff when you are over 35. I remember my first one at 28 put me at 1:1800...! Ah, my lost youth. Anyway, nasal bone is also looking fine. I think I'm happy with that but they kept asking if I wanted bloods as well - which they say gives a more accurate result but more false positives. Any thoughts?

Just musing really...

dinosaur Thu 14-Jul-05 15:08:02

'Fraid I can't remember the exact numbers, but obviously last time round with DS3 I remember thinking that the numbers alone were much less comforting than with DS1 when I was a comparative spring chicken of 33.

But I decided I was happy that nasal bone was looking fine and to just go with the flow and not stress about any more tests.

bundle Thu 14-Jul-05 15:10:07

how old are you pph?

PrincessPeaHead Thu 14-Jul-05 15:12:00

36. just!!

that is my instinct too dino

dinosaur Thu 14-Jul-05 15:13:37

PPH you are a bairn! And to think this is your fourth! Were you very young when you started on the baby-bearing trail?

bundle Thu 14-Jul-05 15:13:50

sounds good to me, then.

Down's Syndrome
MATERNAL AGE RISK AT BIRTH RISK AT 12 WEEKS
20 1/1527 1/898
25 1/1352 1/795
30 1/895 1/526
32 1/659 1/388
34 1/446 1/262
36 1/280 1/165
38 1/167 1/98
40 1/97 1/57
42 1/55 1/32
44 1/30 1/18

bundle Thu 14-Jul-05 15:14:44

(sorry - those two columns - first one is supposed to be risk of DS at birth, 2nd one, risk at 12 weeks)

PrincessPeaHead Thu 14-Jul-05 15:16:47

not really, I was 28 (but dh was 35 - he is now an old codger of 42)

so it looks like I now have the risk of a 31 yr old. I think that is a pretty good improvement in risk, and with the nasal bone stuff ...

dinosaur Thu 14-Jul-05 15:21:23

Golly lolly I was only about two years qualified when I was 28!

PrincessPeaHead Thu 14-Jul-05 15:24:23

I was 3.5 yrs qualified and felt like a break! then had ds when I was 6yrs qualified, had my partnership interviews while on maternity leave (NOT fun trying to get my brain in gear and look like I gave a shit for that one!!!)oh happy days

muminlondon Thu 14-Jul-05 15:55:13

PPH, I haven't been keeping up! congratulations

PrincessPeaHead Thu 14-Jul-05 18:39:10

thank you!
any plans for no 2 yourself??!

Redhelen Thu 14-Jul-05 19:01:50

I'm 37 and had my nucual scan in February - baby due in September.

The background risk was 1:127
Adjusted to - 1:4609 nasal bone seen - also had the blood tests - all seemed to point to low chance.But damned difficult to work out!

PrincessPeaHead Thu 14-Jul-05 19:09:23

redhelen - do you mean 1:460?? otherwise I'm beginning to feel inadequate!!!

PrincessPeaHead Thu 14-Jul-05 19:09:24

redhelen - do you mean 1:460?? otherwise I'm beginning to feel inadequate!!!

hunkermunker Thu 14-Jul-05 19:11:16

When are you due PPH?

PrincessPeaHead Thu 14-Jul-05 19:12:47

22 jan.


2006


sigh...

hunkermunker Thu 14-Jul-05 19:14:20

I'm due on 14th Jan - race ya

Haven't had a nuchal, and think I have decided against bloods too - not sure if I'm being foolhardy or not.

PrincessPeaHead Thu 14-Jul-05 19:16:44

ha! a challenge!

I will have you know that I'm the worlds longest gestator so I don't fancy my chances much.

I know what you mean about the nuchal, but I also REALLY wanted to know that there was just one in there (recurrent paranoia of mine) so it served a dual purpose really.
My babies all have such big hooters that I can't get too worried about the rest of the nuchal stuff!!!

Redhelen Thu 14-Jul-05 19:20:11

It says - adjusted risk or trisomy 21 1:2521
and adjusted risk of trisomy 13+18 1:4609 - but I did have full blood tests too. It's all double dutch - which was interesting as the doctor was dutch!

I think seeing the nasal bone is a good indicator.

aloha Thu 14-Jul-05 19:20:49

pph, your risk is v similar to mine - also nose bone. Remember that your risk at birth is half that of your risk at time of scan as half of babies with downs spontaneously miscarry. So really it is one in 800andsomething.
I did some research and only around 25% of babies with Downs have a nose bone at this stage and more than 80% of babies with Downs have a nuchal fold of more than - I think - 3mm. With that information I decided that I wouldn't have any more tests at all. I also discovered at this stage that dd was, in fact, a dd and was so overwhelmed by her realness (yes, I know, not a word) that I couldn't bear the thought of risking her life with a CVS, which I always thought I would have owing to my frighteningly advanced age.
I cannot believe you are having your fourth at an age when I hadn't even conceived my first. Amazing! You could have another three.
In your position, which is roughly where I was, no I wouldn't have more tests, but of course it has to be your decision alone. I think it sounds really good. The nuchal fold must have been really slender to have reduced your age related risk so far.
Does this one also look like Barry Manilow? Do you know if you are having dd2 or ds3 yet?

PrincessPeaHead Thu 14-Jul-05 19:21:37

I didn't think it was possible to have such good results at that age! Oooooh now I do feel inadequate. Never mind, I'm sure little concorde-nose will be fine!

hunkermunker Thu 14-Jul-05 19:22:12

PPH, DS was 10 days late, so I figured we might have a good race

Not had the nuchal because it wasn't offered - wasn't a studied choice not to. Did have a scan last week though.

aloha Thu 14-Jul-05 19:23:05

BTW I was also so incredibly relieved not to have twins. Nothing wrong with twins of course, but I would be the witch from hell, I know it.

PrincessPeaHead Thu 14-Jul-05 19:24:17

hello aloha! thank you for that. the nuchal fold was 2.1 which I think is pretty good really. we had a good squint at the nether regions but decided it could go either way really. will probably find out at the 20wk scan. If I'm going to be the mother of 3 boys (and therefore spend my life huddled sadly on the edge of games pitches) I think I need to be prepared for that!!

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