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

[CPAP] Positional Apnea/Mask Selection
Positional Apnea/Mask Selection
Hello new friends,

I have been on CPAP for a little over a month with no good results yet, one visit about 2 weeks in to my provider which resulted in some blah blah blah an adjustment to my machine (DreamStation 2 Auto Advanced) that was not effective.  I since have found your forum and installed an SD card into my machine -- thank you so much for existing!!! My questions center on looking at my detailed results for possible postional apnea, a concern for how many CA events I am getting (my doctor claims these "usually clear up in the first few months"), and differences in results when I switch out my full face mask for a nasal pillow mask.

Exhibit A is my results from a few days ago, when I wore my usual full face mask and got really bad sleep, was tired all day Sunday.  


I have a Garmin Forerunner 945 sports watch with Pulse-ox and HRV sensors that includes what Garmin calls a "Body Battery" -- a charge level indicator for how ready I am for my next workout (I am a marathon runner).  After this night, it only charged up to 29% (from 5% when I went to sleep), and showed lots of "stress" during the night.  I noticed a similatiry with a post on here that recommended a SCC device or similar to correct chin drop that would result in positional apnea events, and it looked kind of like my chart.  I was encouraged that there were periods of time without apnea events, so I hope that using an SCC or similar device will maybe clear this part of it up.

Again, this was with my full face mask, that I obtained after a few days using a nasal pillow mask and noticing worse AHI than my sleep study.  As an aside, my sleep study noted several events where I was not breathing for over 2 minutes, which I find scary, and it is why I started pursuing CPAP therapy.  I feel like these events are not accurately accounted for in a number like AHI since one event can last for so long, you can only fit so many 2 minute intervals into an hour, but even 20 of these events would mean I wasn't breathing for 40 minutes out of the hour!!!  Anyway, even with CPAP, some of my events last longer than one minute, and the DreamStation 2 seemingly tries to jolt me out of them by applying "pressure pulses" every 10 seconds.

Here is Exhibit B from the following night (last night) where I initially switched to my nasal pillow mask (first for a nap to try it out around 5pm, and then for the first 2 hours overnight).  After that first 2 hours, I was feeling like I would never be able to sleep with it on, so I took it off and slept with no mask until just before 6am when I switched in my full face mask again. 


For the first segment here, as I was just experimenting, I did not tape my mouth shut,  but I did start out with mouth tape when I tried to go to sleep for the night (middle session).  Here, in looking at the data, I see many more CA events than the previous night, even after finally switching to full face, and I don't know how concerned to be about these.  Zooming in it doesn't look to me like CSR, but maybe I need an ASV if these continue after I make my positional adjustments?

I strongly prefer to sleep on my back for proper spinal alignment, but I have turned on my side in order to sleep when I can't fall asleep on my back.  I haven't yet learned how to stop mouth breathing and although I have never noticed my mouth being very dry before starting CPAP, now every morning I wake up with a dry mouth.  I am trying the "tongue trick" pointed out here to try and move in the direction of nasal only breathing, and anticipate if I get a SCC device, I may be able to get closer.

Thank you for any help! I'm newly disgnosed and am tired of racing my marathons already tired out!
Post Reply Post Reply

Donate to Apnea Board  
RE: Positional Apnea/Mask Selection
From your charts you have a lot of potential apneas which you know. The only way to help is a use of a collar which again you mentioned in your text. I have a link to collar use with the same person with and without a collar HUGE difference.

You can see positional apnea when there are groups of apnea in the O and H graphs
Apnea (80-100%) 10 seconds, Hypopnea (50-80%) 10 seconds, Flow Limits (0-50%) not timed  Cervical Collar - Dealing w DME - Chart Organizing
Post Reply Post Reply
RE: Positional Apnea/Mask Selection
Last night, I wore a "poor man's" SCC -- an airplane travel wrap-around pillow worn backwards, and the OAs cleared up, but I am left with now a lot of clear airway events.  I zoomed in on a cluster of these, and I am wondering if there is anything I can adjust regarding the pressure settings on my machine, since it seems to happen during a controlled ratcheting down of pressure.  These look a lot like Cheyne-Stokes graphs that I've seen, so I wonder if I need to look into being evaluated for an ASV device or if there is something I can try with my DreamStation 2.  This is the close-in view of the CA cluster during the pressure ramp-down.


And here is the zoomed out version that includes the onset and recovery back to normal breathing.  As far as sleep position, by this time I had turned onto my side if that matters at all.


Any help reading the tea leaves would be appreciated. Thanks in advance.
Post Reply Post Reply
RE: Positional Apnea/Mask Selection
You can try to turn off the flex and see if that helps.
Apnea (80-100%) 10 seconds, Hypopnea (50-80%) 10 seconds, Flow Limits (0-50%) not timed  Cervical Collar - Dealing w DME - Chart Organizing
Post Reply Post Reply

Donate to Apnea Board  

Possibly Related Threads...
Thread Author Replies Views Last Post
  Central Apneas: Positional? Something else? WakeTired 6 502 09-21-2023, 08:40 AM
Last Post: Sleeprider
  [CPAP] CPAP Equipment Selection mgonthier 1 155 09-13-2023, 06:33 PM
Last Post: Gideon
  stubborn positional apnea Sleepless in Dewberry 4 373 09-01-2023, 11:50 AM
Last Post: Sleeprider
Question [Diagnosis] Central Apnea associated with mask leakage? wdfarmer 9 1,535 07-14-2023, 02:14 PM
Last Post: Cam12
  What can I do to stay on my front (positional apnea due to large tongue)? aplacelikethis 0 296 04-06-2023, 09:25 AM
Last Post: aplacelikethis
  CPAP mask straps are loose and no longer keep the mask on my face WWu777 8 1,251 03-29-2023, 08:12 AM
Last Post: DaveL
  Mask leaks contributing to apnea events? Birder806 2 396 03-12-2023, 10:15 AM
Last Post: snorin2

New Posts   Today's Posts

About Apnea Board

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