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

Weird gaps in SH recording
#1
Question 
Weird gaps in SH recording
I have noticed more often than when I first got my machine that I will have these gaps in the recording that are unrelated to me stopping the machine to get up and go pee. When I do that and restart, the machine starts at baseline pressure of 10 cm, whereas the "gaps" resume at the pressure close to where they started. Also they are sometimes longer than 15 minutes, and I know that even a deep sleep I did not stop and start the machine for that long (I don't use Autostart).

See SH report for one (of many examples). They do not seem to be related to AHI, LL, or anything else.

   

Anyone else have this issue? Any suggestions?
Post Reply Post Reply
#2
RE: Weird gaps in SH recording
I would get ResScan and look at it one ResScan.
Perhaps it's just a bug in Sleepyhead.
Admin Note:
JustMongo passed away in August 2017
Click HERE to read his Memorial Thread

~ Rest in Peace ~
Post Reply Post Reply
#3
RE: Weird gaps in SH recording
Another thought would be to try rebuilding your data in SH.
Crimson Nape
Apnea Board Moderator
www.ApneaBoard.com
___________________________________
Useful Links -or- When All Else Fails:
The Guide to Understanding OSCAR
OSCAR Chart Organization
Attaching Images and Files on Apnea Board
Apnea Helpful Tips

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
RE: Weird gaps in SH recording
Under the information panel on the left of the daily screen (below the pie chart) SleepyHead gives you the breakdown of the sessions for the night. See if these correspond to the gaps in your charts.

Of course it is possible to turn your machine off in your sleep (I've done it myself often enough). Though your chart doesn't really look like that.
Post Reply Post Reply
#5
RE: Weird gaps in SH recording
Has happened to me on several occasions. Not very often and has not done it for a long time so I have just ignored it. In your case, I would definitely check it out with ResScan and if it is happening there would take it to Resmed.

Best Regards,

PaytonA

Admin Note:
PaytonA passed away in September 2017
Click HERE to read his Memorial Thread

~ Rest in Peace ~
Post Reply Post Reply
#6
RE: Weird gaps in SH recording
It very well could be a problem with your machine. It also could be a rainout issue. These machines are known for gaps in recordings when rainout becomes a problem. I had this challenge. So, I would double check that you have rainout under control. If you do, its likely the machine. If you don't get the Climateline hose and turn the line setting to Auto.
Coffee

Happy Pappin'
Never Give In, Never Give Up




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. 
Post Reply Post Reply
#7
RE: Weird gaps in SH recording
On many nights I'm getting micro occurrences. Perhaps not related, but FWIW: They are BND (Breathing Not Detected) events with the parenthetical value of -32768 (always this same negative number.** Once in a while there's also a BND with a logical duration of several seconds.) They appear only in the events tab on the left, but not as a flag in the BND graph channel.* If I zoom way in, I see a break in the respiration, inspiration, etc. curves, but not in the flow rate, pressure, or leak rate curves.

I'm guessing this to be a machine and/or SH aberration. It is different from the patterns I get for a bathroom break where the machine is off. Those patterns resemble yours (as expected). But you may want to check whether there's a BND event in the events list during the time window in question.

*Questions for SH experts: In that lower right dropdown below the graphs, why is the BND event not listed? (It does appear in the lower left dropdown, and, yes, it's enabled.)
**Does a negative duration have some special significance - an error code perhaps?
I'm using the 1.0.0 beta-1 build.

-Ron
We are such stuff
As dreams are made on, and our little life
Is rounded with a sleep.
Post Reply Post Reply
#8
RE: Weird gaps in SH recording
has to be a Sleepyhead bug. -32768 is 1000 0000 0000 0000 in binary. (215)
Admin Note:
JustMongo passed away in August 2017
Click HERE to read his Memorial Thread

~ Rest in Peace ~
Post Reply Post Reply
#9
RE: Weird gaps in SH recording
I have a suggestion, since I have seen this happen. Turn off Smart Start if you have that on. The machine is thinking you have taken the mask off, because of a large leak and so, turns it off, until you start breathing again and the leak is gone. Then it starts up again. When I see that pattern I know that is my problem, might not be yours but thought I would throw it out there.
I am not a Medical professional and I don't play one on the internet.
Started CPAP Therapy April 5, 2016
I'd Rather Be Sleeping
Post Reply Post Reply
#10
RE: Weird gaps in SH recording
I think that Snowbird47 said that he does not use Smart Start.

Admin Note:
PaytonA passed away in September 2017
Click HERE to read his Memorial Thread

~ Rest in Peace ~
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Weird O2ring issue cps22 0 42 Yesterday, 11:48 AM
Last Post: cps22
  Oscar not recording CSR and RE with Aircurve 10 Vauto rmfisher132 1 89 03-17-2024, 04:33 PM
Last Post: Crimson Nape
  Airsense 10 not recording data Guajiro 3 163 03-11-2024, 07:02 PM
Last Post: OpalRose
  [Equipment] O2 ring/weird heart rate/no other symptoms jdavis 6 196 03-09-2024, 04:58 PM
Last Post: TechieHippie
  Oscar Data. No events flagged but weird flow rate pattern during REM Ynot 53 2,669 02-18-2024, 10:08 PM
Last Post: Ynot
  Weird spikes and then I wake up tiredguy1 4 294 02-12-2024, 10:33 PM
Last Post: OpalRose
  ASV machine making weird sound on startup and when mask is disconnected kc90 7 286 02-08-2024, 06:19 PM
Last Post: kc90


New Posts   Today's Posts


About Apnea Board

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