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Auto mode and data versus exact mask
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PaytonA Offline
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Posts: 3,058
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
Auto mode and data versus exact mask
I am currently using a ResMed S8 VPAP 25 Auto which the DME set up in (S)pontaneous mode. They also supply me with an F & P Zest nasal mask which is vented. The ResMed VPAP has a setting for the mask in use, Mine is set to Ultra which is the factory setting. Naturally the only masks listed in the selection menu are ResMed masks. Does this setting make any difference for any of the calculated results?

I am also thinking of switching to the auto mode. Again will the fact that the mask that I use is not a choice in the settings menu make a difference in the way the VPAP reacts in auto mode?

My concern is that the exact size of the vents might make a difference to some of the calculated parameters that the VPAP uses or that I want to use once I receive the card reader that I ordered.

Thanks in advance for any info on this.

PaytonA
01-08-2014 03:35 PM
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zonk Offline

Advisory Members

Posts: 7,947
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: Auto mode and data versus exact mask
Check mask guide and see how Zest vents flow rate compare to Resmed nasal masks vents flow rate
Resmed masks http://www.resmed.com/assets/documents/s...sa_eng.pdf

Probably not much difference. With the S9, Resmed grouped all nasal masks together and "Nasal" is the mask selection (maybe, Standard - S8 equivalent) with couple of exceptions Ultra Mirage and Swift FX Nano
01-08-2014 04:22 PM
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PaytonA Offline
Wiki Editor
Monitors

Posts: 3,058
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: #3
RE: Auto mode and data versus exact mask
The flow rate for the vents on my Zest at my IPAP is 43 l/min and for the ResMed Ultra is 53 l/min. This seems to me like it would make a difference. What do you think?

PaytonA
01-08-2014 08:01 PM
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zonk Offline

Advisory Members

Posts: 7,947
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: #4
RE: Auto mode and data versus exact mask
(01-08-2014 08:01 PM)PaytonA Wrote:  The flow rate for the vents on my Zest at my IPAP is 43 l/min and for the ResMed Ultra is 53 l/min. This seems to me like it would make a difference. What do you think?

PaytonA
I would change it to Standard or Activa
Because Resmed nasal masks vents leak rate 45 L/m at 20 which correspond with Zest vents leak rate at the same pressure
S8 report leak in L/s ... 24L/m = 0.4 L/s
01-08-2014 08:23 PM
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PaytonA Offline
Wiki Editor
Monitors

Posts: 3,058
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: Auto mode and data versus exact mask
(01-08-2014 04:22 PM)zonk Wrote:  Check mask guide and see how Zest vents flow rate compare to Resmed nasal masks vents flow rate
Resmed masks http://www.resmed.com/assets/documents/s...sa_eng.pdf

Probably not much difference. With the S9, Resmed grouped all nasal masks together and "Nasal" is the mask selection (maybe, Standard - S8 equivalent) with couple of exceptions Ultra Mirage and Swift FX Nano

I checked the mask guide (thanks for the link) and found that the ResMed Swift mask had the closest vent flow rate to the F&P Zest. I put that in the setting for mask type and this morning read 2.7 AHI for last night. My normal has been in the 5's recently although I do not get around to reading the daily results early enough that the day has not been reset. I do not have a data card reader yet but have one on order. I will see how it goes.

Thanks for the help,

PaytonA
01-09-2014 12:17 PM
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PsychoMike Offline

Advisory Members

Posts: 564
Joined: Aug 2013

Machine: ResMed S9 AutoSet
Mask Type: Other
Mask Make & Model: Varies with mood, ResMed F20 is my primary
Humidifier: ResMed H5i
CPAP Pressure: 12-17
CPAP Software: SleepyHead

Other Comments: asthma, cyclist upgraditis, just a little crazy (honest :D )

Sex: Male
Location: Alberta, Canada

Post: #6
RE: Auto mode and data versus exact mask
The setting probably won't have any impact on the AHI reading, or if it does, it'd be minimal at best....Resmed machines use the setting to calculate the unintentional leak rate (total leak rate - intentional (or venting) = unintentional leak rate).
01-09-2014 12:33 PM
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