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Central Apneas showing up w/new machine
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Stargazer Offline

Preferred Members-2

Posts: 100
Joined: Apr 2014

Machine: ResMed S9 AutoSet
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quatro
Humidifier: H5i
CPAP Pressure: 10-15
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Carolina Coast

Post: #11
RE: Central Apneas showing up w/new machine
(05-03-2014 02:28 PM)zonk Wrote:  Here are some reading materials, study hard, there will be a multiple choice questions test for all newbies, exam date is yet to be announced Coffee

Haha, pop quiz, eh? Nice! I will endeavor to study my butt off.

Thanks for the links, Zonk. Much obliged! Thanks

A good laugh and a long sleep are the best cures....
05-03-2014 04:30 PM
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vsheline Offline

Advisory Members

Posts: 1,907
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: #12
RE: Central Apneas showing up w/new machine
(05-03-2014 01:40 PM)Stargazer Wrote:  
(05-03-2014 12:43 PM)trish6hundred Wrote:  Just a thought here.
Is it a far stretch to suggest that the algarhythms could be different between the two machines?
Good luck to you in solving the puzzle.

I was thinking the same thing about an algorithm thing. Both machines were new, at least I think they were and are.

Even if the machines were running different software versions (for example because one was newer and had a different hardware component), I doubt the Central Sleep Apnea Detection algorithm or the treatment algorithms would be intentionally different.

These are medical devices, and I would expect the treatment algorithms would need to be extensively safety tested and that software behavior could not be significantly changed without a huge amount of retesting and recertification by government agencies, etc.

The ResMed white paper (which Zonk posted the link to, earlier above) mentions that the previous AutoSet algorithm (used by S8 series and some earlier series) remained unchanged for 10 years before the new Enhanced AutoSet Algorithm was released with the S9 series AutoSet.

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.
(This post was last modified: 05-04-2014 12:17 AM by vsheline.)
05-04-2014 12:07 AM
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Stargazer Offline

Preferred Members-2

Posts: 100
Joined: Apr 2014

Machine: ResMed S9 AutoSet
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quatro
Humidifier: H5i
CPAP Pressure: 10-15
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Carolina Coast

Post: #13
RE: Central Apneas showing up w/new machine
(05-03-2014 12:43 PM)trish6hundred Wrote:  Just a thought here.
Is it a far stretch to suggest that the algarhythms could be different between the two machines?
Good luck to you in solving the puzzle.

"* The Enhanced AutoSet Algorithm is only available in the S9 AutoSet."

Copied from the ResMed Website re: S9 AutoSet....

Mystery solved!

A good laugh and a long sleep are the best cures....
05-04-2014 09:09 AM
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vsheline Offline

Advisory Members

Posts: 1,907
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: #14
RE: Central Apneas showing up w/new machine
(05-04-2014 09:09 AM)Stargazer Wrote:  "* The Enhanced AutoSet Algorithm is only available in the S9 AutoSet."

Copied from the ResMed Website re: S9 AutoSet....

Mystery solved!


Although only the S9 AutoSet has the new Enhanced AutoSet Algorithm (introduced around 2010) for automatically adjusting the pressure, actually both the S9 Elite and S9 AutoSet share the same Central Sleep Apnea Detection algorithm.

This info can also be found on the ResMed website, but to verify you can also call ResMed Customer Service line to talk to a technical representative to confirm both machines report central apneas using same detection algorithm.

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.
05-04-2014 01:16 PM
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Stargazer Offline

Preferred Members-2

Posts: 100
Joined: Apr 2014

Machine: ResMed S9 AutoSet
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quatro
Humidifier: H5i
CPAP Pressure: 10-15
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Carolina Coast

Post: #15
RE: Central Apneas showing up w/new machine
(05-04-2014 01:16 PM)vsheline Wrote:  Although only the S9 AutoSet has the new Enhanced AutoSet Algorithm (introduced around 2010) for automatically adjusting the pressure, actually both the S9 Elite and S9 AutoSet share the same Central Sleep Apnea Detection algorithm.

....mystery continues!

I may just call them. I will share their response if/when I get the chance. Should be interesting!

A good laugh and a long sleep are the best cures....
05-05-2014 06:42 AM
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