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Weird gaps in SH recording
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Snowbird47 Offline

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Machine: AirSense™ 10 AutoSet CPAP Machine with HumidAir™ Heated Humidifier
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: integrated, climateline hose
CPAP Pressure: 11 - 14.6
CPAP Software: SleepyHead

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Sex: Male
Location: USA

Post: #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?
06-25-2016 08:04 AM
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justMongo Offline

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Machine: ResMed VPAP Auto (S9)
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quattro
Humidifier: ResMed H5i
CPAP Pressure: 18 IPAPmax - 11 EPAPmin, PS=5
CPAP Software: Other Software

Other Comments: μολὼν λαβέ

Sex: Male
Location: Калифорния

Post: #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.

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.
06-25-2016 08:28 AM
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Crimson Nape Offline

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Machine: ResMed S9 Autoset
Mask Type: Other
Mask Make & Model: P-10 / F&P Simplus / DreamWear
Humidifier: H5i w/Climateline
CPAP Pressure: 8 - EPR 3
CPAP Software: SleepyHead

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Sex: Male
Location: Georgia

Post: #3
RE: Weird gaps in SH recording
Another thought would be to try rebuilding your data in SH.

Statistics prove that people who have more birthdays live longer.
06-25-2016 09:21 AM
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DeepBreathing Offline
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Posts: 2,296
Joined: Sep 2013

Machine: Resmed S9 VPAP Adapt
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: Resmed H5i
CPAP Pressure: EPAP: 9 - 15 PS: 3 - 10
CPAP Software: ResScan SleepyHead

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Sex: Male
Location: Perth, Western Australia

Post: #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.

DeepBreathing
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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.
06-25-2016 09:25 AM
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PaytonA Offline
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Machine: ResMed S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
Humidifier: H5i(distilled-top up)
CPAP Pressure: VAuto MinE14.0 MaxI 20.6 PS4.0
CPAP Software: ResScan SleepyHead

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Sex: Male
Location: Orange County,California

Post: #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
06-25-2016 11:10 AM
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sonicboom Offline

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Posts: 475
Joined: May 2015

Machine: Airsense 10 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: ResMed AirFit P10, Dreamwear
Humidifier: Integrated
CPAP Pressure: 4.6-7.6
CPAP Software: ResScan SleepyHead

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Sex: Male
Location: Washington

Post: #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
06-25-2016 11:26 AM
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rkl122 Offline

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Joined: Apr 2016

Machine: Philips Respironics System One 560P (Auto, Aflex, 60 Series)
Mask Type: Nasal pillows
Mask Make & Model: PR Dreamware Frame Med, Pillow MW
Humidifier: Remstar System One - Hose Unheated
CPAP Pressure: low 8.5, high 12.5, expting
CPAP Software: SleepyHead EncoreBasic

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Sex: Male
Location: NJ

Post: #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.
06-25-2016 12:04 PM
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justMongo Offline

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Posts: 3,855
Joined: Sep 2013

Machine: ResMed VPAP Auto (S9)
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quattro
Humidifier: ResMed H5i
CPAP Pressure: 18 IPAPmax - 11 EPAPmin, PS=5
CPAP Software: Other Software

Other Comments: μολὼν λαβέ

Sex: Male
Location: Калифорния

Post: #8
RE: Weird gaps in SH recording
has to be a Sleepyhead bug. -32768 is 1000 0000 0000 0000 in binary. (215)

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.
06-25-2016 12:54 PM
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FrankNichols Offline

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Machine: AirSense 10 Autoset
Mask Type: Full face mask
Mask Make & Model: Resmed F10 and/or P10
Humidifier: Builtin
CPAP Pressure: 17-19
CPAP Software: ResScan SleepyHead Other Software

Other Comments: I've figured out how to get my AHI down to 5, I quit sleeping!

Sex: Male
Location: Live Oak, Florida

Post: #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
06-25-2016 02:07 PM
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PaytonA Offline
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Posts: 3,019
Joined: Dec 2013

Machine: ResMed S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
Humidifier: H5i(distilled-top up)
CPAP Pressure: VAuto MinE14.0 MaxI 20.6 PS4.0
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Orange County,California

Post: #10
RE: Weird gaps in SH recording
I think that Snowbird47 said that he does not use Smart Start.
06-25-2016 05:28 PM
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