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Forgot to Change Mask Settings on ResMed S 9
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Lukie Offline

Preferred Members-2

Posts: 352
Joined: Nov 2013

Machine: Resmed S9 Auto
Mask Type: Full face mask
Mask Make & Model: Airfit F 10
Humidifier: H I heated tubing resmed
CPAP Pressure: 6-16
CPAP Software: ResScan SleepyHead

Other Comments: Masks: Simplus, Air, Quattro fx, Nano, Eson, Swift fx and Activ

Sex: Female
Location: Vermont

Post: #1
Forgot to Change Mask Settings on ResMed S 9
Last night was a bit hellish because I tried out my new Nano and discovered I was a mouth breather big time and I couldn't fix it with a chin strap. So I went back to my ff mask without changing the settings in the machine. I did not do well and my AHI and leakage was higher. How do mask settings affect pressure?
11-23-2013 05:02 PM
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zonk Offline

Advisory Members

Posts: 7,908
Joined: Feb 2012

Machine: A10 AutoSet
Mask Type: Nasal mask
Mask Make & Model: Activa LT
Humidifier: Integrated /ClimateLineAir
CPAP Pressure: 9/13
CPAP Software: ResScan

Other Comments: CPAP since Nov 2010

Sex: Male
Location: Australia

Post: #2
RE: Forgot to Change Mask Settings on ResMed S 9
(11-23-2013 05:02 PM)Lukie Wrote:  How do mask settings affect pressure?
ResMed machines report unintentional leak. unintentional leak = total leak minus intentional leak
Mask setting might affects unintentional leak (mask plus mouth leak) as each mask type have different intentional leak rate (vents leak) at different pressures

Pressure vs. Flow Rates for ResMed Masks
http://www.resmed.com/assets/documents/s...sa_eng.pdf
11-23-2013 05:29 PM
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PaulaO2 Offline
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Posts: 8,067
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: #3
RE: Forgot to Change Mask Settings on ResMed S 9
In other words, as far as treatment goes, no, makes little difference. What matters is how it reports the leak rate. Probably not much of a difference between pillows and mask but sure would be for any other mask type and a full face mask.

PaulaO2
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11-23-2013 07:11 PM
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vsheline Offline

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Posts: 1,908
Joined: Jul 2012

Machine: S9 VPAP Adapt (USA Model# 36007, not better 36037 or 36067)
Mask Type: Full face mask
Mask Make & Model: F10 or SimPlus w/ 2Liners. MirageQuatro & Gecko gel pad
Humidifier: H5i
CPAP Pressure: 15 EPAP, PS 5-10
CPAP Software: ResScan

Other Comments: Marfan Syndrome, chronic bradycardia, occasional Cheyne-Stokes Respiration

Sex: Male
Location: California, USA

Post: #4
RE: Forgot to Change Mask Settings on ResMed S 9
(11-23-2013 05:02 PM)Lukie Wrote:  Last night was a bit hellish because I tried out my new Nano and discovered I was a mouth breather big time and I couldn't fix it with a chin strap. So I went back to my ff mask without changing the settings in the machine. I did not do well and my AHI and leakage was higher. How do mask settings affect pressure?

Mask setting being wrong would not affect delivered mask pressure.

Mask setting being wrong would cause errors in calculation of Intentional Leak (through mask vent holes) versus Unintentional Leak. This does not affect therapy pressure, only causes error in reporting Intentional Leak versus Unintentional Leak.

Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment. The Advisory Member group provides advice and suggestions to Apnea Board administrators and staff on matters concerning Apnea Board operation and administrative policies - not on matters concerning treatment for Sleep Apnea. I think it is now too late to change the name of the group but I think Voting Member group would perhaps have been a more descriptive name for the group.
11-24-2013 04:04 AM
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archangle Offline
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Advisory Members

Posts: 3,159
Joined: Feb 2012

Machine: ResMed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: ResMed Swift FX
Humidifier: ResMed S9 H5i
CPAP Pressure: 16-20
CPAP Software: ResScan SleepyHead EncoreBasic

Other Comments: Happy PAPper

Sex: Undisclosed
Location: USA

Post: #5
RE: Forgot to Change Mask Settings on ResMed S 9
I suspect it may affect things like EPR, bilevel and how quickly the machine regulates the pressure as you inhale and exhale. It might also slightly affect the measurement of AHI and central vs. obstructive.

However, I think the above effects are relatively minor.

Get the free SleepyHead software here.
Useful links.
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If it's midnight and a DME tells you it's dark outside, go and check it yourself.
11-25-2013 10:47 PM
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JohnNJ Offline

Preferred Members-2

Posts: 103
Joined: Oct 2013

Machine: ResMed S9 AutoSet & ResMed Power Station II
Mask Type: Nasal pillows
Mask Make & Model: Respironics Wisp & ResMed Swift FX
Humidifier: ResMed H5i & ClimateLine (distilled / fresh daily)
CPAP Pressure: 9.4 - 10
CPAP Software: ResScan SleepyHead

Other Comments: First night - November 25, 2013

Sex: Male
Location: New Jersey, USA

Post: #6
RE: Forgot to Change Mask Settings on ResMed S 9
Sorry to hijack this thread but does anyone know the difference between nasal and nasal ultra on the mask settings for the S9?
11-26-2013 10:41 AM
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zonk Offline

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Posts: 7,908
Joined: Feb 2012

Machine: A10 AutoSet
Mask Type: Nasal mask
Mask Make & Model: Activa LT
Humidifier: Integrated /ClimateLineAir
CPAP Pressure: 9/13
CPAP Software: ResScan

Other Comments: CPAP since Nov 2010

Sex: Male
Location: Australia

Post: #7
RE: Forgot to Change Mask Settings on ResMed S 9
(11-26-2013 10:41 AM)JohnNJ Wrote:  Sorry to hijack this thread but does anyone know the difference between nasal and nasal ultra on the mask settings for the S9?
ResMed seem making things simpler (maybe not) with the S9 mask settings as lumping all masks of the same types together, for example "Nasal" for all nasal masks but with two exceptions:
1- Ultra Mirage nasal mask ... mask setting: Nasal Ultra
2- Swft FX Nano nasal mask ... mask settings: Pillows
11-26-2013 01:21 PM
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