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SleepyHead v0.9.8-1 question
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car54 Offline

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Posts: 108
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Machine: PRS1 Model 560P
Mask Type: Full face mask
Mask Make & Model: Airfit F10
Humidifier: PR system one
CPAP Pressure: 9-11
CPAP Software: SleepyHead

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Sex: Male
Location: Milwaukee, WI

Post: #1
SleepyHead v0.9.8-1 question
The bottom graph in the daily view has events "by pressure". It has multiply triangles for all events. Is there any way to interpret it and make use of the data?
Also my RDI graph will not work, any ideas?

Thanks, Brad
(This post was last modified: 05-02-2015 03:15 PM by car54.)
05-02-2015 03:14 PM
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SleepingInRlyeh Offline

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Joined: Apr 2015

Machine: ResMed AirSense 10 AutoSet
Mask Type: Full face mask
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Humidifier: Built-in
CPAP Pressure: 5-20
CPAP Software: SleepyHead

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Sex: Male
Location: WA

Post: #2
RE: SleepyHead v0.9.8-1 question
The table is useful if you want to correlate things with a particular pressure. The By Pressure table bucketizes the various events and information into pressure buckets.

The table shows you for each pressure value how much time you spent in that pressure and how many events of each type occurred for that pressure.

I'm not sure what the units of the particular values are (e.g., RE is 0.33, but 0.33 of what?). I'm also not sure exactly what the graphs represent. Maybe someone else can answer that.

Can't help with the RDI, my machine doesn't have that.
05-03-2015 12:37 AM
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on the virge Offline

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Posts: 53
Joined: Feb 2015

Machine: PRS 1 (560) Auto with A-Flex
Mask Type: Nasal pillows
Mask Make & Model: P10
Humidifier: Philips Respironics
CPAP Pressure: 7-11
CPAP Software: SleepyHead EncoreBasic Other Software

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Sex: Male
Location: Northern Virginia

Post: #3
RE: SleepyHead v0.9.8-1 question
(05-03-2015 12:37 AM)SleepingInRlyeh Wrote:  The table shows you for each pressure value how much time you spent in that pressure and how many events of each type occurred for that pressure.
I'm not sure what the units of the particular values are (e.g., RE is 0.33, but 0.33 of what?).

The values are the index of events per hour in that "pressure bucket". RE=.33 equates to 2 RERA events during 369.2 minutes of time at pressure 7. The .49 Flow limits = 3 in the 369.2 minutes.
The 2.29 equates to 3 hypopneas at pressure 8.
05-04-2015 04:15 PM
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archangle Offline
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Posts: 3,159
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Machine: ResMed S9 AutoSet
Mask Type: Nasal pillows
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CPAP Pressure: 16-20
CPAP Software: ResScan SleepyHead EncoreBasic

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Sex: Undisclosed
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Post: #4
RE: SleepyHead v0.9.8-1 question
(05-02-2015 03:14 PM)car54 Wrote:  The bottom graph in the daily view has events "by pressure". It has multiply triangles for all events. Is there any way to interpret it and make use of the data?
Also my RDI graph will not work, any ideas?

Thanks, Brad

I believe triangle display is a work in progress, to say the least. It is beta software, and I think Mark didn't get that to something that's particularly useful. It's intended to be something like a histogram, and the colors match the colors of the graphs above. I think. I never really deciphered it that well.

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05-05-2015 01:12 AM
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car54 Offline

Advisory Members

Posts: 108
Joined: Apr 2014

Machine: PRS1 Model 560P
Mask Type: Full face mask
Mask Make & Model: Airfit F10
Humidifier: PR system one
CPAP Pressure: 9-11
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: Milwaukee, WI

Post: #5
RE: SleepyHead v0.9.8-1 question
Thanks for the info. I could not make sense of the triangles.
Brad
05-05-2015 04:41 AM
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Sleeprider Online
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Posts: 3,339
Joined: Dec 2014

Machine: Resmed Aircurve 10 Vauto
Mask Type: Nasal pillows
Mask Make & Model: Resmed Airfit P10
Humidifier: Resmed Climateline
CPAP Pressure: Auto Bilevel 18/9, PS 3
CPAP Software: ResScan SleepyHead EncoreBasic

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Sex: Male
Location: Where they make Respironics

Post: #6
RE: SleepyHead v0.9.8-1 question
Brad, your AHI and RERA events are so low, you really don't have to use that graph. Your AHI is only 0.67 for the night and RERA is 0.27. That is exceptional therapy and there is nothing to be gained from seeing what pressure range the only event occurred in. I agree, the frequency by pressure chart is not very well done yet, although with some people who experience a lot of events, it does provide some interesting information, especially when different event types occur at different pressures.

In your case, we can see flow limitations (gray) occur at 7.0, which is probably the reason for the minor pressure increases you saw at 23:00 and 02:50. The few RERA you had peaked at 8.0, while you had some Hypopnea (blue) when your pressure peaked at 8.5. You can pretty much ignore pressure pulses (brown) and VS2 (red). None of this is significant enough to make recommendations for pressure changes in your case, but that is how it intends to work.

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05-05-2015 08:00 AM
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