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oximetry interpretation guide for sleepyhead
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sdb7802 Offline

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Posts: 199
Joined: Jan 2016

Machine: PR DreamStation Auto
Mask Type: Nasal pillows
Mask Make & Model: ResMed AirFit P10
Humidifier: built-in with heated hose
CPAP Pressure: 9.5-14 C-Flex 3
CPAP Software: SleepyHead

Other Comments: Retired Electrical Engineer; began using cpap in 2001; FlashAir wifi card and FlashPAP app

Sex: Male
Location: Georgia, USA (The Margravate of Azilia)

Post: #1
oximetry interpretation guide for sleepyhead
Is there a guide for understanding oximetry data in sleepyhead? Or what readings to expect in a sleep apnea patient.

Thanks

Just my personal opinion. My posts are not medical advice or a statement of fact. Please consult a qualified physician or other qualified medical personnel. Please comply with all applicable laws, codes, regulations, and protocols.
04-20-2016 09:58 PM
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Sn00zeAlarm Offline

Preferred Members

Posts: 72
Joined: May 2015

Machine: Resmed A10 autoset
Mask Type: Nasal pillows
Mask Make & Model: Resmed P10
Humidifier: Builtin
CPAP Pressure: 5-7
CPAP Software: SleepyHead

Other Comments: Heated hose

Sex: Male
Location: Florida US

Post: #2
RE: oximetry interpretation guide for sleepyhead
I found this article, "Overnight Pulse Oximetry for Sleep-Disordered Breathing in Adults". Not specifically about SleppyHead, but if you scroll down it has some diagrams and how to interpret them.
04-22-2016 12:34 PM
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Possum Online

Advisory Members

Posts: 254
Joined: Oct 2015

Machine: Resmed Airsense Autoset A10
Mask Type: Nasal pillows
Mask Make & Model: Airfit P10
Humidifier: (included in CPAP model)
CPAP Pressure: 8-12
CPAP Software: ResScan SleepyHead

Other Comments: Innovo CMS-50F+ pulse oximeter

Sex: Male
Location: San Diego, California, USA

Post: #3
RE: oximetry interpretation guide for sleepyhead
The generally accepted threshold for SP02 is >/=88%. While it's also important to collect some baseline data when you are awake for comparison, any significant time intervals (several minutes) spent below this level are generally associated with the body not getting enough oxygen and thus being in a state of stress, interfering with sleep.

If during therapy you are still observing significant desaturation events below 88%, your setup might need to be tweaked, or in more extreme cases you might need supplemental oxygen.

Oximetry data can be especially telling when synced with your PAP detailed data - you can check for correlation of the desats with other metrics, in particular flow rate and the calling of AHI events (OA, H, and CA). I also "believe" that you can get a very rough idea of your sleep cycles, in particular REM periods, from your oximetry data. I confirmed my suspicion in a scholarly article I found once, though I haven't been able to locate it again. If I find it, I'll update this post with a link.
04-22-2016 05:34 PM
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