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

Puzzling Sleepyhead Graph - looking for cause
#1
Last night I added a few new things to my APAP routine; used a nasal strip to help widen nostrils and limit irritation from the pillows, and used a nasal spray because I was slightly congested. I thought and felt I had slept well and expected to see a low AHI on Sleepyhead this morning. Got a big surprise!

[attachment=1775]

As you can see, for about an hour I show vastly different OA events, flow rate and other indicators, which then goes away for the rest of the evening. I was totally unconscious during this time AFAIK, my wife did not mention any unusual activity during the period (although she may have been sound asleep).

Any ideas what is going on here? I am a very short-time APAP user, but this has never occurred before.

edit - I am sorry but I guess I am too knew to the forum to be able to post attachments even though it looks like I can; sleepyhead data will have to wait.
Post Reply Post Reply
#2
I used to get clumped together events like you described. Shortly after I fell asleep. Maybe an hour into sleep I would get a bunch and then little for the rest of the evening. It went away when I raised my pressure. Not saying that is your answer but I too found it weird that it was almost always an hour after I went to bed with no rhyme or reason.


Using FlashAir W-03 SD card in machine. Access through wifi with FlashPAP or Sleep Master utilities.

I wanted to learn Binary so I enrolled in Binary 101. I seemed to have missed the first four courses. Big Grinnie

Post Reply Post Reply
#3
Hi Snowbird47,
You should be able to post an attachment.
Here is a "how to" link.

http://www.apneaboard.com/forums/misc.ph...elp&hid=19
OpalRose
Apnea Board Moderator
www.ApneaBoard.com

How to Organize and Post ScreenShots

http://sleep.tnet.com/resources/sleepyhead/shorganize
https://sleep.tnet.com/reference/tips/imgur

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


#4
(10-10-2015, 10:01 AM)OpalRose Wrote: Hi Snowbird47,
You should be able to post an attachment.
OK OpalRose I will try again.

Repost of original post hopefully with graph this time:
Last night I added a few new things to my APAP routine; used a nasal strip to help widen nostrils and limit irritation from the pillows, and used a nasal spray because I was slightly congested. I thought and felt I had slept well and expected to see a low AHI on Sleepyhead this morning. Got a big surprise!

[attachment=1776]

As you can see, for about an hour I show vastly different OA events, flow rate and other indicators, which then goes away for the rest of the evening. I was totally unconscious during this time AFAIK, my wife did not mention any unusual activity during the period (although she may have been sound asleep).

Any ideas what is going on here? I am a very short-time APAP user, but this has never occurred before.



(10-10-2015, 08:54 AM)AlanE Wrote: I used to get clumped together events like you described. Shortly after I fell asleep. Maybe an hour into sleep I would get a bunch and then little for the rest of the evening. It went away when I raised my pressure. Not saying that is your answer but I too found it weird that it was almost always an hour after I went to bed with no rhyme or reason.

Thanks, Alan - I will try raising the pressure a little. I start to get a lot of "CA" if I go much higher that 12, but I do not know if that is a real issue or not.
Post Reply Post Reply
#5
Snowbird47,
The first thing I notice is the high leak rate, probably from your mask, or possible mouth breathing.
If you look at the leak rate graph, it correlates with the Obstructives on graph.

The thing is, when you experience leaks, the APAP will try to compensate and shoot the pressure up. It's hard to say if the AHI is accurate at that point.

The first thing to do is determine if you are mouth breathing, and mabye use a chin strap.
Make sure you are using the correct size nasal pillow. Try one size up.

Other than that, you can move your minimum pressure to 9, as that would help clear up Obstructives. I would leave the max pressure alone right now, unless you see on the graph that it is staying at max for a good part of time.

OpalRose
Apnea Board Moderator
www.ApneaBoard.com

How to Organize and Post ScreenShots

http://sleep.tnet.com/resources/sleepyhead/shorganize
https://sleep.tnet.com/reference/tips/imgur

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
#6
Snowbird47: You had to compress the image to get it under 200kB right?
It's barely legible.

Does look like big time leaks in the time frame of that clump of scored apneas.
Machine results cannot be trusted when leak rate is high. You need to tame those leaks.
Looks like you can get a seal at that pressure later in the night.
You may need the next size up pillow for the P10 mask.
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


#7
Don't dwell on it too much, blame it on your congested nose. Try saline sinus rinse an hour or two before bedtime
Full face mask is your best friend on those occasions

Edit: some people get congested on higher humidity settings, some on lower settings, and some happy without
Matter of trial and error, might get lucky to find the sweet spot
Avoid sleeping on your back helps, try the tennis ball trick or something else prevent from rolling on your back
Post Reply Post Reply
#8
zoom in on that area and see how the leak spikes relate to the OA's
Post Reply Post Reply
#9
I don't think, leak is the main problem, only after the fact
When your nose is congested and using nasal mask, no sufficient air passing through
You'll have to open your mouth to get some air to breathe, that results in mouth leaks
Hence the large leak during this time and none at other times
Post Reply Post Reply


#10
Thanks to all for the ideas. I suspect it was a mouth-opening problem, I did have a looser chinstrap than usual.
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Mask fit & sleepyhead graph Cuppa 6 232 04-05-2017, 05:16 PM
Last Post: Cuppa
  Flow Rate Graph Resizing nadprok 2 259 01-18-2017, 04:37 PM
Last Post: nadprok
  Oximeter Normal Graph shermantank45 14 983 11-03-2016, 06:00 PM
Last Post: kwhenrykerr
  Leakage graph double line Aussie Paul 5 563 09-10-2016, 02:26 AM
Last Post: Aussie Paul
Question Graph interpreters.... do your worst! shawn42 11 1,005 06-25-2016, 07:51 PM
Last Post: shawn42
  Help Interpreting Flow Rate Graph nadprok 15 1,584 06-20-2016, 06:11 PM
Last Post: Sleeprider
  No flow data graph on SH yankees123 5 801 03-30-2016, 08:20 AM
Last Post: pholynyk

Forum Jump:

New Posts   Today's Posts




About Apnea Board

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

For any more information, please use our contact form.