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Effects of change to Auto mode
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PaytonA Offline
Wiki Editor
Monitors

Posts: 3,007
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: #1
Effects of change to Auto mode
My original prescription in 2010 was for 20 cmH2O and I was provided with a ResMed VPAP Auto 25 set up in Spontaneous mode at 20cm/16cm. I have been using this set up until yesterday. Now that I have learned from this website what most of the data means, I am questioning what I am doing. For one thing my leakage rate with my P&K nasal mask at the original set up is running between 1.4 and 1.7 L/s, which is not good, although my AHI was 1.7-2.7 with an AI of 0.1. I am waiting for a card reader so that I may look at the data in more detail.

The crux of my question is that yesterday I converted my machines operation to auto mode with a min. EPAP of 10cm and a max. IPAP of 20cm. I looked at my daily data this morning and I had reduced the leakage rate to 0.44 L/s. The reported pressure was 16.6cm but my AHI was 10.8 with an AI of 0.7.

My question is, are these event scores something that may get better as I get used to this mode of operation? One other question, I am used to starting up with a long ramp in the S mode so it starts very gently. When I started the settle period in the auto mode, I thought it was going to blow me away but I decided to go with it for a little while and it seemed to settle down and it did. Is this normal?

Best Regards,

PaytonA
01-13-2014 12:22 PM
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PaulaO2 Offline
Wiki Editor
Moderators

Posts: 8,065
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #2
RE: Effects of change to Auto mode
If the overall leak rate is high the entire night, or for long periods of the night, then the AHI is going to be skewed. Any events reported during a leak is invalid and during a leak, there could be events and it not know. Now that you have fixed the leaks, it can now give you the true AHI.

I *think* the AI of 0.7 includes both obstructive and central so the bulk of your 10.8 AHI is hypopneas.

It probably didn't settle down, rather you got used to it. I no longer use the ramp feature as I found it was more of a hindrance than a help.

PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


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01-13-2014 02:48 PM
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coyotemist Offline

Members

Posts: 5
Joined: Jan 2014

Machine: PR System One REMstar Auto 60 Series
Mask Type: Nasal pillows
Mask Make & Model: Swift FX
Humidifier: none
CPAP Pressure: Auto-CPAP
CPAP Software: Not using software

Other Comments:

Sex: Female
Location:

Post: #3
RE: Effects of change to Auto mode
One way or another, it really sounds like you are being under-treated with a residual AHI of 10. Perhaps you need BiPap or something else.
01-13-2014 02:51 PM
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PaytonA Offline
Wiki Editor
Monitors

Posts: 3,007
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: #4
RE: Effects of change to Auto mode
(01-13-2014 02:51 PM)coyotemist Wrote:  One way or another, it really sounds like you are being under-treated with a residual AHI of 10. Perhaps you need BiPap or something else.

Possibly so. The VPAP is ResMed's name for a BiPAP.

Best Regards,

PaytonA
01-13-2014 04:30 PM
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PaytonA Offline
Wiki Editor
Monitors

Posts: 3,007
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: #5
RE: Effects of change to Auto mode
Paula02

Thanks for the feedback. Can I have any expectation that my results may improve if I continue using the auto mode for a while?

Thanks again,

PaytonA
01-13-2014 04:36 PM
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