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[Diagnosis] Interpreting Data on Res Scan
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bstill57 Offline

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Posts: 1
Joined: May 2015

Machine: Resmed S9
Mask Type: Full face mask
Mask Make & Model: Resmed ultra Mirage
Humidifier: H5I
CPAP Pressure: 10
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #1
Interpreting Data on Res Scan
Res med S9 Autoset. In Auto, Min 7CM, Max 20.
Been using CPAP for years. Finally got Compliant about 3 or 4 years ago.

My question is when I read the data in Res Scan, are the number of Obstructive Apneas and Hypopneas the number per hour it saw and prevented? Or are these events occurring with the therapy?

For instance, Apnea Index: 4.4, Hypopnea Index 1.0, and Central 4.1 with and AHI of 5.4.

Is this how I am doing because of the CPAP or is this what it saw and corrected?

Do you get where I am going with this?
05-17-2015 01:01 PM
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eseedhouse Online

Advisory Members

Posts: 881
Joined: Dec 2014

Machine: ResMed Airsense 10 Autoset
Mask Type: Full face mask
Mask Make & Model: SimPlus
Humidifier: ResMed
CPAP Pressure: 7-10
CPAP Software: SleepyHead

Other Comments: Also on supplemental O2 at 3L/min. while sleeping.

Sex: Male
Location: Victoria, British Columbia

Post: #2
RE: Interpreting Data on Res Scan
The AHI is the number per hour of events that occurred WITH treatment. It tells you how you are doing under CPAP therapy.

I don't think there is any simple way to be sure of what apnea events it actually prevented (how do you measure what isn't there?), except that likely many of the hypopnea events would have been apneas but for the machine.

If you know what your sleep study showed, then subtracting your AHI when on the machine from your AHI when off it in the sleep study should give you a rough idea, but the night of the sleep study is only a sample of one and it's dodgy to compute statistics from one sample.

Ed Seedhouse
VA7SDH

I am neither a Doctor, nor any other kind of medical professional.

Actually you know, it is what it isn't.
05-17-2015 01:20 PM
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trish6hundred Offline

Advisory Members

Posts: 6,449
Joined: May 2012

Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: H5i Heated Humidifier
CPAP Pressure: 10 - 7-20 Cm H2O
CPAP Software: Not using software

Other Comments: I started CPAP in 2008. Totally blind since birth.

Sex: Female
Location: Missouri, USA

Post: #3
RE: Interpreting Data on Res Scan
Hi bstill57,
WELCOME! to the forum.!
Hang in there for more help with interpreting ResScan.
Much success to you as you continue your CPAP therapy.

trish6hundred
05-17-2015 02:11 PM
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DeepBreathing Offline
Wiki Editor
Moderators

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

Other Comments:

Sex: Male
Location: Perth, Western Australia

Post: #4
RE: Interpreting Data on Res Scan
G'day bstill57, welcome to Apnea Board. As Ed said, the results are what the machine is report with therapy. I see that all your apneas are central with no obstructives. Have a look at the pressure graphs and see if there is a correlation between the apneas and high pressure. With your upper limit set to 20 it's quite possible the pressure is causing the apnea

You might want to bring the maximum pressure down to say 15 and see if that makes a difference. (As always, only make changes once a week or longer - you're looking for a long term trend, not a one night special).

DeepBreathing
Apnea Board Moderator
www.ApneaBoard.com


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05-18-2015 01:14 AM
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