How common is it that the machine shows CSA?

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
Matfarsan
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How common is it that the machine shows CSA?

Post by Matfarsan » Tue Nov 16, 2021 1:28 pm

Hi!
Im one week in with my CPAP maschine,Resmed Airsense 10.
Just. starting out to learn sleeping with machine, and all around is new for me.
I downloaded OSCAR to see what happens during my sleep.
Today I had AHI 11.14 and the Central Apnea was 6.61 and the OSA 3.92

Can I trust the machine, or Is it common that it can show CSA in the beginning when starting to use a CPAP?
From what I´ve read is the CSA worse to have than the OSA
Sincere
/Anders
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zonker
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Re: How common is it that the machine shows CSA?

Post by zonker » Tue Nov 16, 2021 6:15 pm

Matfarsan wrote:
Tue Nov 16, 2021 1:28 pm
Hi!
Im one week in with my CPAP maschine,Resmed Airsense 10.
Just. starting out to learn sleeping with machine, and all around is new for me.
I downloaded OSCAR to see what happens during my sleep.
Today I had AHI 11.14 and the Central Apnea was 6.61 and the OSA 3.92

Can I trust the machine, or Is it common that it can show CSA in the beginning when starting to use a CPAP?
From what I´ve read is the CSA worse to have than the OSA
Sincere
/Anders
IMG_1396.jpg
welcome to the zoo! yes, it's common to show central events, particularly when you start. it's your body trying to get used to all of this. and what you show isn't that much, so you don't actually have central apnea. that's an entirely different kettle of fish.

btw, next time you post some oscar info, there is a "proper" way to do it-

https://www.cpaptalk.com/viewtopic.php? ... 9#p1390059

if you follow the link, you'll see how the experts here would like to see info.

good luck!
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but that's enough about them.
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ChicagoGranny
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Re: How common is it that the machine shows CSA?

Post by ChicagoGranny » Tue Nov 16, 2021 6:44 pm

Matfarsan wrote:
Tue Nov 16, 2021 1:28 pm
Im one week in with my CPAP maschine,Resmed Airsense 10.
1. What was your diagnosis? Obstructive sleep apnea? Central? Mixed?

2. For the night you posted, were you sleepless/restless a lot while using CPAP?

clownbell
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Re: How common is it that the machine shows CSA?

Post by clownbell » Tue Nov 16, 2021 9:45 pm

I'm just a regular guy, not an expert. From what I understand, there are two things to be aware of:

1) it typically takes 2-3 months (though longer in some cases) for the "treatment emergent" centrals to go away. When at the beginning of CPAP, the body breathes more efficiently and exhausts excess CO2.

2) even after treatment-emergent centrals are gone, many people will have a few centrals here and there which is no big deal. If you have LOTS of them, then that's a separate kettle of fish.

So give it a while for things to stabilize.
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ChicagoGranny
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Re: How common is it that the machine shows CSA?

Post by ChicagoGranny » Wed Nov 17, 2021 7:08 am

Matfarsan wrote:
Tue Nov 16, 2021 1:28 pm
Can I trust the machine, or Is it common that it can show CSA in the beginning when starting to use a CPAP?
I wouldn't listen to the people :evil: telling you to just wait. Get some screenshots posted in this thread of your OSCAR Daily Details and let members help you do some analysis.

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Pugsy
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Re: How common is it that the machine shows CSA?

Post by Pugsy » Wed Nov 17, 2021 9:00 am

I know clownbell means well and only wants to reassure OP but most of it is incorrect and the rest of it is based on assumptions that we don't know are true or not. A couple of comments are true though.

1...While sometimes people do have treatment emergent centrals happen (about 10 to 15% of the people put on cpap depending on what you read) and they can sometimes go away with the "give it time" thing....the assumption is these centrals are treatment caused and that simply is not a known fact at this time. OP could have had centrals prior to starting therapy for all we know or they could simply be awake false positive pauses in breathing if OP is not sleeping well.
And some people who do get treatment emergent centrals never have them go away no matter how much time we give it.
When at the beginning of CPAP, the body breathes more efficiently and exhausts excess CO2.
This statement is just totally incorrect. Centrals happen because of an unstable breathing pattern....not a more efficient breathing pattern.
many people will have a few centrals here and there which is no big deal. If you have LOTS of them, then that's a separate kettle of fish.
This statement is true.
So give it a while for things to stabilize.
This statement might be true but more information is needed before we can advise this course of action.
Matfarsan wrote:
Tue Nov 16, 2021 1:28 pm
Can I trust the machine, or Is it common that it can show CSA in the beginning when starting to use a CPAP?
From what I´ve read is the CSA worse to have than the OSA
You can trust the machine that it is flagging what it thinks is centrals happening but there is a little caveat ....the machine doesn't/can't know if you are awake or asleep and it can and will flag false positive awake breathing pauses in breaths as a central but if you aren't asleep...they don't count and it doesn't mean CSA. Just means crappy sleep...which is quite common for when people first start cpap therapy. Lets face it...not exactly normal to have to sleep with all this stuff attached to us and blowing air up out nose.
So while the machine might flag something...doesn't mean it is something to worry about.
Try not to panic and do a bit of digging before you worry and even IF it turns out that your centrals are the real deal and they won't go away.....CSA can be easily treated but just with a different type of machine.

So...do a bit of digging before settling in panic mode or resolving yourself to what is quite obviously sub optimal therapy at this point in time.

Go here and watch the videos with special attention to the bottom video.
http://freecpapadvice.com/sleepyhead-free-software

Answer ChicagoGranny's questions....they are important.

Post a detailed nightly report from OSCAR in the format explained here
viewtopic/t158560/How-to-post-images-for-review.html

Finally....your OA index is a bit high and it wouldn't be impossible for those centrals to be a by product of an OA event happening. The OA happens because of sub optimal pressure settings and cause an arousal and then the central gets flagged from arousal/awake breathing. I have seen it happen...reduce the OAs and the centrals reduce.

BUT we have to start with more detailed information from you first before we go making assumptions about what to do or how much to worry about what we see.

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zonker
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Re: How common is it that the machine shows CSA?

Post by zonker » Wed Nov 17, 2021 11:48 am

ChicagoGranny wrote:
Wed Nov 17, 2021 7:08 am

I wouldn't listen to the people :evil: telling you to just wait.

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Matfarsan
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Re: How common is it that the machine shows CSA?

Post by Matfarsan » Wed Nov 17, 2021 1:43 pm

Thanks for all your replies.
I will give the machine a few more weeks and se if the AHI will get better.
I have a planned visit to my doctor after 4 weeks of using the machine.