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Resmed S9 AutoSet not changing pressure?
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Batman Offline

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Posts: 3
Joined: Apr 2014

Machine: ResMed S9 Autoset
Mask Type: Full face mask
Mask Make & Model: Resmed
Humidifier: Resmed
CPAP Pressure: none
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #1
Resmed S9 AutoSet not changing pressure?
Hello,

I have Resmed S9 Autoset. When I set it to autoset setting to does not change air pressure when I am wearing my mask and stop breathing. I checked it by holding my breath. Is there something wrong with my cpap? Please let me know. Thank you.
04-22-2014 04:59 PM
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PaytonA Online
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Monitors

Posts: 3,014
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: #2
RE: Resmed
Welcome to the society of Hoseheads, Batman

I am not an expert but your autoset is designed to look for the precursors to obstructive apnea and adjust the pressure before the apnea occurs. It also does not react to central apneas which is what you are manufacturing by holding your breath.

If you want to find out what the machine is doing you need to download either the Rescan or Sleepyhead software which will allow you to download the data and look at it in graphical form including the machine pressure. This presumes that your autoset has been set up in auto mode and is not working as a constant pressure machine which is an option with the autoset.

Along with the software, youwill need an SD card reader and your machine should have been supplied with an SD card. I would give you the links to get the software but I can not remember where they are (part of the creeping onset of senility). I am sure that someone will come along and provide you with the appropriate links. We all like to keep track of what is going on with our therapy.

Best Regards,

PaytonA
04-22-2014 05:17 PM
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trish6hundred Offline

Advisory Members

Posts: 6,450
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: Resmed
Hi Batman,
WELCOME! to the forum.!
Hang in there for more responses to your post and best of luck to you with your CPAP therapy.

trish6hundred
04-22-2014 05:30 PM
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big_dave Online

Advisory Members

Posts: 411
Joined: Apr 2012

Machine: PR System One DS560
Mask Type: Nasal pillows
Mask Make & Model: F&P Pilairo Q or ResMed Mirage Activa
Humidifier: PR System One
CPAP Pressure: 14 - 20
CPAP Software: SleepyHead

Other Comments: Former ResMed S8 Autoset II user

Sex: Male
Location: Eugene, Oregon

Post: #4
RE: Resmed
There are at least two ways that the Autoset can decide to increase the pressure. First, the Autoset uses the forced oscillation technique to determine if the airway is closed, when you stop breathing. See http://www.resmed.com/au/products/s9_ser...nc=dealers for an overview. That page also has a link to a white paper that goes into detail (but it's written for doctors.)

Second, the Autoset is able to detect snoring. If I put the mask on and make snoring sounds, my S8 Autoset II does nothing for about a minute, then on each breath, it increases the pressure by about 1 cmH2O per breath, until it hits the maximum pressure. (If it's actual snoring while asleep, it stops increasing the pressure when the snoring stops.) Try this test.
(This post was last modified: 04-22-2014 05:33 PM by big_dave.)
04-22-2014 05:32 PM
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Batman Offline

New Members

Posts: 3
Joined: Apr 2014

Machine: ResMed S9 Autoset
Mask Type: Full face mask
Mask Make & Model: Resmed
Humidifier: Resmed
CPAP Pressure: none
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #5
RE: Resmed
Thank you everyone for warm welcome and for very helpful info. I will try and use this information. Thanks again.
04-22-2014 06:16 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: #6
RE: Resmed
(04-22-2014 04:59 PM)Batman Wrote:  Hello,

I have Resmed S9 Autoset. When I set it to autoset setting to does not change air pressure when I am wearing my mask and stop breathing. I checked it by holding my breath. Is there something wrong with my cpap? Please let me know. Thank you.
Whats the minimum and maximum pressure setting and are you holding your breath during Ramp period
Whats AHI, leak and pressure displayed on the scren sleep report

I suggest get hold of the clinical manual, have all the information and available via email http://www.apneaboard.com/adjust-cpap-pr...tup-manual

S9 setup information, pictures and video guide http://www.apneaboard.com/resmed-s9-cpap-setup

Download the software so you can see whats going on breath by breath
ResScan and SleepyHead download links http://www.apneaboard.com/forums/Forum-Private-Files-and-Links
04-22-2014 06:51 PM
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Batman Offline

New Members

Posts: 3
Joined: Apr 2014

Machine: ResMed S9 Autoset
Mask Type: Full face mask
Mask Make & Model: Resmed
Humidifier: Resmed
CPAP Pressure: none
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #7
RE: Resmed
My air pressure Min is 4.0 and Max 20.0. What other setting should I watch out for?
04-22-2014 08:18 PM
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JimZZZ Offline

Advisory Members

Posts: 370
Joined: Dec 2013

Machine: ResMed S9 AutoSet
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: ResMed H5i (not using)
CPAP Pressure: 9 - 14
CPAP Software: ResScan SleepyHead

Other Comments: CareFusion PureSom Ultra Chinstrap

Sex: Male
Location: Western North Carolina

Post: #8
RE: Resmed
(04-22-2014 08:18 PM)Batman Wrote:  My air pressure Min is 4.0 and Max 20.0. What other setting should I watch out for?
That is usually an unnecessarily wide pressure range. If you monitor your SleepyHead average and 95% pressures for a while, and search this forum for autoset pressure recommendations, perhaps you could narrow this to a more appropriate and comfortable range. It took a few months to get the range right for me.
04-23-2014 08:03 AM
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SuperSleeper Offline

Administrators

Posts: 9,973
Joined: Feb 2012

Machine: PR System One REMstar Auto (DS560)
Mask Type: Nasal pillows
Mask Make & Model: ResMed Mirage Swift II
Humidifier: none
CPAP Pressure: 12.5 - 18.5 cmH20 (auto range)
CPAP Software: SleepyHead

Other Comments: Have diabetes Type II

Sex: Male
Location: Illinois, USA

Post: #9
RE: Resmed S9 AutoSet not changing pressure?
Welcome to Apnea Board, Batman. I revised the subject line of your thread to be more descriptive of your post.

Thanks

SuperSleeper
Apnea Board Administrator
www.ApneaBoard.com


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.

04-23-2014 08:07 AM
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