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Pregnancy

Talk about every stage of pregnancy, from early symptoms to preparing for birth.

Short Nasal Bone - sign of Down Syndrome?

7 replies

concernedmumtobe23 · 28/01/2021 11:13

Hi all,

I went to my 20 week routine scan yesterday (I’m 22 weeks 4 days. The scan was delayed due to me testing positive for Covid in early Jan) where they found that our baby has a short nasal bone however everything else with the baby is normal and they said baby is very healthy. On the report it says the nasal bone is measuring at 2.6mm which is well below what it should be at this stage and they’re concerned our baby may have Down Syndrome despite receiving the lowest risk possible after our 12 week scan and bloods. They did also say baby may just have a small or flat nose but the nasal bone is a big indicator to them for Down Syndrome.

They’ve given us 3 options:
Do nothing and carry on as normal with the pregnancy
Harmony Test
Have a amniocentesis

We’ve opted for the amniocentesis test as it is 100% accurate and we feel like we need to know for sure, I’m just waiting for the hospital to call with an appointment.

I guess I was just wondering if anyone has experienced being told their baby has a short nasal bone and what happened? I can only seem to find information on a baby having no nasal bone.

I’m 23 and this is my second pregnancy after having a healthy boy in 2018. We were definitely not expecting this news yesterday.

Thank you

OP posts:
Bibbidiboo · 09/07/2021 02:35

Hi @concernedmumtobe23
How did you go? I was told that the nasal bone was present but not fully formed at 12 weeks and can’t find any information either

ttcchapter1 · 09/07/2021 02:58

Hi

I went through the exact same thing, my baby is now 6 months old. We did the Harmony test twice and it came back with no result! So I'm totally for going with the amnio from the get go as the two Harmonys made me fret for weeks until I had to have the amnio anyway. But please do look at your hospitals/obstetricians amnio stats. If you ask the hospital they'd be sure to tell you or point you in the right direction.

My baby didn't have downs syndrome despite certain blood markers of mine which indicated he did and the comment regarding a 'short' nasal bone. Sometimes it can be the angle of the ultrasound, the person performing the ultra sound and so many other factors. I obsessed over my ultrasound for days after! It's natural to worry.

Just take each day as it comes, you're right, the info online is in regards to no nasal bone. My obstetrician said it can vary from child to child both downs syndrome children and non.

concernedmumtobe23 · 09/07/2021 11:22

Hi @Bibbidiboo,

I’m sorry you’re currently experiencing this situation.

At our 12 week scan, nothing was picked up on our scan and our combined screening results came back with the lowest result you could get.

We then went for our 20 week scan on Jan 27th (2 weeks late due to Covid) where the first sonographer found that our baby had a hypoplastic nasal bone and told us it is a marker for Down Syndrome but she couldn’t find any other soft markers which was apparently a positive. She referred us to the Fetal Medicine Unit at our hospital and thankfully they had an appointment that same day.

We had a scan with the Fetal Medicine Unit and their sonographer confirmed that our baby had either a hypoplastic nasal bone or no nasal bone at all, she couldn’t get a very clear view as baby kept moving away but she was happy to confirm what the other sonographer found. She also confirmed there were no other soft markers. They did tell us that they would be more concerned if the baby had other soft markers such as an issue with the heart or bowels however, the nasal bone on its own is still a big marker to them and that’s why they can’t rule out Down Syndrome. They then sat us in a small room and went through our options: carry on with the pregnancy and do nothing, have the harmony test or have the amniocentesis which carries a risk of miscarriage. We originally went for the harmony test but the next day I called them to request an amniocentesis instead as me and my partner agreed we needed to know for sure if our baby did or didn’t have Down Syndrome.

Our amniocentesis was done Feb 1st at Chelsea & Westminster hospital and we had our results by Feb 5th to say our baby came back negative for Down Syndrome. We was meant to have a follow up appointment with the Fetal Medicine Unit in late March to have a scan to check if the nasal bone had grown or if it was even present but they had cancelled our appointment without telling us so we didn’t find out anymore from the hospital unfortunately.

Our midwives suggested looking at family members as a small/flat nose could be in our genes. They also said it could be that we’re just having a petite baby and her nose is in perfect proportion for her. Unfortunately it was mostly guess work as they don’t really know much about it and my midwife said it’s picked up more and more because of studies that are taking place.

Our baby girl was born June 6th, perfectly healthy and with her small button nose. I’ve attached a photo of how her nose looks and it’s right what the midwife said, it’s in proportion for her as she’s only petite. The only thing we have been advised to do is keep an eye on her breathing and to have the doctor check her nose at her 6-8 week appointment, other than that, we don’t have to do anything.

Have they discussed what your options are for testing or are they waiting for your 20 week scan?

I’m sorry I couldn’t provide anymore information but hopefully our experience helps and I’m here if you need to talk.

Short Nasal Bone - sign of Down Syndrome?
OP posts:
Ozanj · 09/07/2021 11:25

@concernedmumtobe23

Hi all,

I went to my 20 week routine scan yesterday (I’m 22 weeks 4 days. The scan was delayed due to me testing positive for Covid in early Jan) where they found that our baby has a short nasal bone however everything else with the baby is normal and they said baby is very healthy. On the report it says the nasal bone is measuring at 2.6mm which is well below what it should be at this stage and they’re concerned our baby may have Down Syndrome despite receiving the lowest risk possible after our 12 week scan and bloods. They did also say baby may just have a small or flat nose but the nasal bone is a big indicator to them for Down Syndrome.

They’ve given us 3 options:
Do nothing and carry on as normal with the pregnancy
Harmony Test
Have a amniocentesis

We’ve opted for the amniocentesis test as it is 100% accurate and we feel like we need to know for sure, I’m just waiting for the hospital to call with an appointment.

I guess I was just wondering if anyone has experienced being told their baby has a short nasal bone and what happened? I can only seem to find information on a baby having no nasal bone.

I’m 23 and this is my second pregnancy after having a healthy boy in 2018. We were definitely not expecting this news yesterday.

Thank you

I was told a short nasal bone is a risk factor only for white people, while a slightly longer nasal bone can be a risk factor for black and East Asian people. In your position I would have the Harmony test to truly understand the risk, and then only if that says it’s high, I’d go for the Amnio. Amnios are really invasive and can be distressing - don’t put yourself through it until you have to.
concernedmumtobe23 · 09/07/2021 11:38

Hi @ttcchapter1,

It’s so worrying and upsetting being told there could be something wrong with your baby. Thankfully our result came back negative for Down syndrome but it didn’t stop me worrying for the rest of the pregnancy as not only was I concerned incase they had got it wrong (very unlikely but still worrying) but I was also worried that she would be born with the small/flat nose like they had said and could potentially have breathing difficulty due to it.

Like you, I also obsessed over the ultrasounds and was also comparing my daughters scan photos with my sons. The whole situation made me crazy and my midwife wasn’t impressed with how the hospital had treated us - I was having to chase days for the appointments and results when they should have been contacting me and to then cancel my appointment without telling me… I wasn’t happy to say the least when I arrived at the hospital for that appointment.

I’m happy everything worked out fine in the end but it is a situation I never thought I’d find myself in.

OP posts:
shivawn · 09/07/2021 11:44

@concernedmumtobe23
What a beautiful baby and your story was really interesting to read!

MeganMama28 · 20/02/2024 05:12

I know this hasn't been posted on for quite some time but I stumbled across this when I was panic googling after my 12 and 20 weeks scan. 12w scan showed no nasal bone then 20w scan showed a very short nasal bone on one side only. I was devasted but they (had my scans at Kings in london) didn't seem too worried and just said casually its a 'soft' marker and my bloods showed trisomy 21 was unlikely. They offered me then amino for peace of mind which actually made me worry more that they offered it!

We didn't go for the harmony test as I only wanted to do something that told us yes or no for 100% certain. I felt that the amino was too risky so we opted for a wait and see. I was super nervous but remained hopeful that this was our only marker and it could be due to ethnicity (I am mixed race, my partner is black). We also have a 3yo who is fine and has a button nose.

My baby is now 5 weeks old, happy, healthy and doesn't have downs syndrome. My midwife said I was the third person she'd seen worried about this and she wishes they didn't mention it as it causes unnecessary worry- especially if its the only marker! The other two women also had healthy babies who did not have down syndrome - again, just button noses and typical of those that aren't Caucasian.

This thread gave me hope so I promised myself I'd return and pass it on. I hope my story gives someone else hope too like it did for me reading the previous post.

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