Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

CA while "awake" or "restless"
#1
CA while "awake" or "restless"
Hello everyone,
I've been using an ResMed AirSense 10 Autoset, DreamAir Nasal mask for almost two weeks now, and behind the scenes have been reading a ton of posts, tweaked a few things here and there, but not yet finding consistency.  It is great that there are so many folks here to support each other.  

My prescription was 5/14 with EPR 3. I'm running manual humidity at 5 after experiencing dry mouth.  I'm no longer using the ramp feature.

Last night I went to bed at 10, the power went out at 12:30 approx. and back on a little before 1:00.  I woke up at 5, and went to the bathroom.  At that point I felt good, even thought it was later in the morning, but after seeing the time went back to bed.  From 5 to 6 I alternated between being on my back and being on my left side.  What I find curious is that I have a cluster of CA's during this period where I don't feel like I'm asleep at all.  Additionally, looking at the pressure, the ResMed doesn't increase the pressure to give me more flow (at least that's my interpretation).  

Most nights my AHI runs 5 or 6.  Approx. 3.5 are CAs.  Last night seems to be an anonomaly so looking for some real interpretation of the data if possible. The only slight tweak I had last night was I loosened the strap on the back of my head slightly because I was experiencing some discomfort under my nose (which I understand is common for the first few weeks of therapy).

I have tried to attach the Ocscar generated screenshot but its 878 kb, which exceeds the 700kb limit.  I've reviewed the Attachments wiki but not seeing what I need to do to correct this.  If someone can help me with that I will post the image right away.

Thanks so much!
Post Reply Post Reply



Donate to Apnea Board  
#2
RE: CA while "awake" or "restless"
G'day Wcwilson. Welcome to Apnea Board.

The centrals you describe are commonly known as sleep-wake junk. During the transition from sleep to wakefulness (and vice versa) our breathing gets quite erratic, often with long pauses, especially if we move around during this period. If a pause exceeds 10 seconds, it's flagged as an apnea. It's really a false positive and can generally be ignored.

The Autoset doesn't respond to central apneas. It diagnoses the type of apnea while it's happening - if it's obstructive, it will raise the pressure to prevent another one occurring in the next little while. However increasing static pressure is contra-indicated for central apneas.

If your screenshot is that size my guess is that you're using a Mac with a retina screen. There is a known problem with the way Macs capture screen shots which will be remedied in the next release of Oscar. Is it possible to reduce your screen resolution?
DeepBreathing
Apnea Board Moderator
www.ApneaBoard.com


Bed

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Post Reply Post Reply
#3
RE: CA while "awake" or "restless"
I've experienced this myself, such that I don't trust the CA reporting of the machine.

I have taken, though, to making sure I turn off the machine if I wake up, so that I can easily correlate where those clusters are in relation to that awakening. Almost always, it's on either side of them, and there are a handful outside of that.

Others with more experience can give you more details though.
Post Reply Post Reply
#4
RE: CA while "awake" or "restless"
I don't know if this helps on the screenshot size, but on my Android phone I'll resize the image via a resize edit action to 25%. That gets my images under the pixel limit.

As for sleep wake junk, if it's applicable, I'd disregard that segment.
Dave

I'm not a doctor in real or fictional life. My posts include opinions based upon user experience regarding CPAP therapy and should not be considered medically professional direction or advice. Even a 1,000 mile trip requires a good first step. My recommended first steps include getting good walking shoes, 1 great cup of coffee, and a good GPS.

Wiki Info for Beginners
OSCAR Chart Organization
Mask Primer
Post Reply Post Reply



Donate to Apnea Board  
#5
RE: CA while "awake" or "restless"
(09-11-2019, 09:17 AM)Wcwilson Wrote: Hello everyone,
I've been using an ResMed AirSense 10 Autoset, DreamAir Nasal mask for almost two weeks now, and behind the scenes have been reading a ton of posts, tweaked a few things here and there, but not yet finding consistency.  It is great that there are so many folks here to support each other.  

My prescription was 5/14 with EPR 3. I'm running manual humidity at 5 after experiencing dry mouth.  I'm no longer using the ramp feature.

Last night I went to bed at 10, the power went out at 12:30 approx. and back on a little before 1:00.  I woke up at 5, and went to the bathroom.  At that point I felt good, even thought it was later in the morning, but after seeing the time went back to bed.  From 5 to 6 I alternated between being on my back and being on my left side.  What I find curious is that I have a cluster of CA's during this period where I don't feel like I'm asleep at all.  Additionally, looking at the pressure, the ResMed doesn't increase the pressure to give me more flow (at least that's my interpretation).  

Most nights my AHI runs 5 or 6.  Approx. 3.5 are CAs.  Last night seems to be an anonomaly so looking for some real interpretation of the data if possible. The only slight tweak I had last night was I loosened the strap on the back of my head slightly because I was experiencing some discomfort under my nose (which I understand is common for the first few weeks of therapy).

I have tried to attach the Ocscar generated screenshot but its 878 kb, which exceeds the 700kb limit.  I've reviewed the Attachments wiki but not seeing what I need to do to correct this.  If someone can help me with that I will post the image right away.

Thanks so much!

The best way to know if a central is real or not is to look at your tidal volume. This is not an absolute rule but in general, if you see a big jump in tidal volume right before the CA event, it usually means you were awake or you woke up.
Post Reply Post Reply
#6
RE: CA while "awake" or "restless"
   

Got it reduced via Mac Preview.
Post Reply Post Reply
#7
RE: CA while "awake" or "restless"
OK great on the getting the screenshot. Can you do a 2 minute or so zoom in where one of the CA events are on this?
Dave

I'm not a doctor in real or fictional life. My posts include opinions based upon user experience regarding CPAP therapy and should not be considered medically professional direction or advice. Even a 1,000 mile trip requires a good first step. My recommended first steps include getting good walking shoes, 1 great cup of coffee, and a good GPS.

Wiki Info for Beginners
OSCAR Chart Organization
Mask Primer
Post Reply Post Reply



Donate to Apnea Board  
#8
RE: CA while "awake" or "restless"
Thanks Dave.  See attached.  I chose approx. 3:40 because all was pretty good up until that point.  I don't remember waking up then.

and here is about 5:12 when I know I was awake trying to go back to sleep.


Attached Files Thumbnail(s)
       
Post Reply Post Reply
#9
RE: CA while "awake" or "restless"
After we have had a fairly good blast of decent quality sleep, and we awaken close to our usual time, we may feel the need to turn over and attempt to get another 40 winks.  Often this works out uneventfully.  But at least as often we'll drift off, our brain thinks of something or a noise brings us back (car passing in the street?), and we will fall into a steady drift/wake cycle until our alarm goes off or we get annoyed and throw off the covers for the day.  During this cycling, many of us will stop breathing for a few seconds.  Longer than 10 seconds and the machine detects and notes it.

All that to say I agree with the others: they are innocuous and you should ignore them.  If they were in the range of 20+ seconds (as an example of longer and possibly deleterious pauses), and clustered, they could be a problem worth rectifying by adjustments to your treatment.
Post Reply Post Reply
#10
RE: CA while "awake" or "restless"
(09-11-2019, 10:00 AM)Wcwilson Wrote: Thanks Dave.  See attached.  I chose approx. 3:40 because all was pretty good up until that point.  I don't remember waking up then.

and here is about 5:12 when I know I was awake trying to go back to sleep.

Add your tidal volume chart please.
Post Reply Post Reply



Donate to Apnea Board  


Possibly Related Threads...
Thread Author Replies Views Last Post
  New CPAP user - keeping me awake every night so far grobinson499 12 642 09-12-2019, 10:25 AM
Last Post: Wcwilson
  Restlessness and Restless Leg Syndrome Brian T 12 1,010 07-27-2019, 03:54 PM
Last Post: cobradoc
  restless legs and cymbalta Mouchet 5 263 07-23-2019, 11:54 AM
Last Post: Mosquitobait
Question Most obstructive events are while Im awake silverdr 15 467 07-16-2019, 12:45 PM
Last Post: silverdr
  Throat obstruction when awake Velacooks 17 626 06-22-2019, 06:32 AM
Last Post: Velacooks
  Airsense 10 increasing pressure while I'm awake Reznik 15 1,679 06-13-2019, 10:03 AM
Last Post: bonjour
  OSA Sorted then CAs Sorted but left with restless legs/PLMD ThrownOutTheAsylum 5 832 06-12-2019, 01:14 AM
Last Post: praguecr


New Posts   Today's Posts






About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.