Post Reply 
CPAP versus APAP
Author Message
mdorne Offline

New Members

Posts: 1
Joined: Jul 2012

Machine: ResMed S9 Autopap
Mask Type: Full face mask
Mask Make & Model:
Humidifier: H5i
CPAP Pressure: 8 - 14
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #1
CPAP versus APAP
Anyones thoughts on my friends following statement and conclusion.

checked out the S9 mask (auto function) and it is available. But here's the thing, with the auto setting the machine will just tick over while you are breathing normally, and kick in when it detects your breathing has stopped. The problem being that if you have frequent consecutive bouts of no breathing it may not keep up with the frequency of each bout, hence the need for a constant pressure to keep the airwaves continually open. This was explained to me by the experts ... So depending on the severity of your condition auto for mild or constant if your airways need to be opened throughout the night.
Obviously my heart condition required my airways be opened throughout the night, so I'll go with what was originally prescribed for me ...... But an update by our CPAP unit may be in order, since its been a few years since I've had one!
You may want to check out this theory for your own benefit, and I appreciate your concern and thank you for the advice. Also I'm looking into a smaller travel unit which I may invest in, they seem to be well designed and appropriately functional.
08-20-2013 11:02 AM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
trish6hundred Offline

Advisory Members

Posts: 6,430
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: #2
RE: CPAP versus APAP
HI mdorne,
WELCOME! TO THE FORUM.!
HANG IN THERE FOR ANSWERS TO YOUR QUESTIONS AND BEST OF LUCK TO YOU.

trish6hundred
08-20-2013 11:32 AM
Find all posts by this user Post Reply Quote this message in a reply
PsychoMike Offline

Advisory Members

Posts: 549
Joined: Aug 2013

Machine: ResMed S9 AutoSet
Mask Type: Other
Mask Make & Model: Varies with mood, ResMed F10 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: #3
RE: CPAP versus APAP
Hi Mdorne and welcome to the board.

I'm not an expert, but here's my thoughts as least...If you have something like the S9 AutoSet, then it is typically set up with a base constant pressure: when the machine is turned on, it will always have at least that amount of pressure to the mask you are using. What the auto function does is adjusts the pressure depending on your needs. So if you only need the lower pressure to keep your airways open, then it can do that....but it can also ramp up the pressure when it detects the apnea events, rather than keeping you at the higher pressures all the time (which can be uncomfortable to adjust to for "normal" sleeping).

If you have a more severe condition, I would suspect that they would set you up with a higher base pressure (more like a CPAP) and a maximum pressure appropriate to your situation (to give you some of the ease of use typically associated with the APAP).

As I said, though....I'm not an expert Smile
(This post was last modified: 08-20-2013 12:05 PM by PsychoMike.)
08-20-2013 12:05 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
jgjones1972 Offline

Preferred Members-2

Posts: 516
Joined: Nov 2012

Machine: ResMed S9 AutoSet
Mask Type: Full face mask
Mask Make & Model: ResMed Quattro FX
Humidifier: ResMed H5i
CPAP Pressure: 18 - 20
CPAP Software: ResScan SleepyHead

Other Comments: CMS50I PulseOx

Sex: Male
Location: Ohio - USA

Post: #4
RE: CPAP versus APAP
Auto PAPs provide a constant minimum pressure but also can automatically adjust as high as the maximum pressure setting. The "Auto" part of Auto PAP doesn't mean that they turn off and on automatically, it means they adjust pressure automatically within the scope and limitations that are set by you or your health care provider. Autos can also be put in CPAP mode, set to a very tight range or have the mimimum pressure set to your optimum CPAP pressure and the maximum pressure left higher just in case something unusual happens to increase flow resistance.

An Auto CPAP will do everything a CPAP will do and much more.

The statement made by your friend displays a complete lack of knowledge about APAPs, their intended/optimal use and the way they function.
08-20-2013 12:55 PM
Find all posts by this user Post Reply Quote this message in a reply
RonWessels Offline

Preferred Members-2

Posts: 465
Joined: Jun 2013

Machine: REMstar Auto AFlex DS560TS
Mask Type: Nasal mask
Mask Make & Model: ComfortGel Blue
Humidifier: REMstar Heated Tube DS6T
CPAP Pressure: 11 - 20
CPAP Software: SleepyHead

Other Comments: CMS50F Pulse Oximeter

Sex: Male
Location: Ontario, Canada

Post: #5
RE: CPAP versus APAP
Auto-CPAP devices do not just react to apnea events. They analyze the airflow looking for indications that the airway is starting to close. These indications include "flow limitation", which is a flattening of the top of an inhale airflow plot (normally they are rounded), and "snoring", which is a detected vibratory airflow during inhale. When such a "warning" is detected, the auto-CPAP device will increase the pressure to attempt to prevent a possible upcoming airway obstruction. Of course obstructive apnea events will also cause the device to increase the pressure, but usually it doesn't get that far.

My untreated AHI is over 100. That means on average, I have an apnea event lasting 10 seconds or more at a rate faster than every 36 seconds! With my auto-CPAP, a bad night consists of, on average, an apnea event lasting 10 seconds or more at a rate slower than every 30 minutes (ie. an AHI less than 2). [ Yes, I am the poster-child for how well CPAP can work. ]
08-20-2013 02:27 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
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: CPAP versus APAP
an AutoPAP constantly adjust pressure to your needs throughout the night but the trick is to set it correctly
Doctor-no-get-it ... the machine does not increase pressure in blink of an eye

Not all APAP are equal ... machine in profile: ResMed S9 Autopap
look next to power button for the correct model name, its a winner if say "AutoSet" not "Escape Auto"
08-20-2013 03:01 PM
Find all posts by this user Post Reply Quote this message in a reply
STL Mark Offline

Preferred Members

Posts: 44
Joined: Jul 2013

Machine: Resmed S9 VPAP Adapt 36037
Mask Type: Full face mask
Mask Make & Model: Resmed Quattro Air
Humidifier: Resmed H5i
CPAP Pressure: Original Titration: 18 cm H2O
CPAP Software: ResScan SleepyHead

Other Comments: Mode: ASVAuto, Min EPAP: 4, Max EPAP: 15, Min PS: 3, Max PS: 15, Ramp: Off

Sex: Male
Location: Saint Louis, MO USA

Post: #7
RE: CPAP versus APAP
(08-20-2013 11:02 AM)mdorne Wrote:  checked out the S9 mask (auto function) and it is available.
I was not sure if in the above statement you are referring to the S9 setting to turn the machine on automatically when you breath through the mask? And off automatically when you take off the mask...
08-20-2013 04:09 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
PsychoMike Offline

Advisory Members

Posts: 549
Joined: Aug 2013

Machine: ResMed S9 AutoSet
Mask Type: Other
Mask Make & Model: Varies with mood, ResMed F10 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: #8
RE: CPAP versus APAP
(08-20-2013 03:01 PM)zonk Wrote:  Not all APAP are equal ... machine in profile: ResMed S9 Autopap
look next to power button for the correct model name, its a winner if say "AutoSet" not "Escape Auto"

Very true as well...
08-20-2013 04:10 PM
Find all posts by this user Post Reply Quote this message in a reply
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: #9
RE: CPAP versus APAP
(08-20-2013 04:09 PM)STL Mark Wrote:  
(08-20-2013 11:02 AM)mdorne Wrote:  checked out the S9 mask (auto function) and it is available.
I was not sure if in the above statement you are referring to the S9 setting to turn the machine on automatically when you breath through the mask? And off automatically when you take off the mask...
If the machine an Escape Auto ... according to the comparison charts - SmartStart/Stop feature is not available on this model
http://www.resmed.com/us/products/s9_ser...nc=dealers
08-20-2013 05:05 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
Paptillian Offline

Preferred Members-2

Posts: 474
Joined: Jun 2013

Machine: S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: Swift FX
Humidifier: H5i
CPAP Pressure: 4 - 10, EPR x2
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Pennsylvania, USA

Post: #10
RE: CPAP versus APAP
(08-20-2013 11:02 AM)mdorne Wrote:  with the auto setting the machine will just tick over while you are breathing normally

False. As others mentioned, it stays on all night and will never go below the minimum pressure that is ordered by your doctor.
08-20-2013 08:34 PM
Find all posts by this user Post Reply Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Medicare Advantage Coverage for APAP Evie 3 173 11-30-2016 08:22 PM
Last Post: Mike1953
  cpap and apap not effictive Ezil71 109 3,071 11-05-2016 11:19 AM
Last Post: sonicboom
  Resmed Airsense 10 CPAP data versus Resmed Airsense 10 Autoset data David P. 4 521 10-29-2016 08:42 PM
Last Post: trish6hundred
  Unable to clear throat while on APAP NorthernGuy 5 298 10-17-2016 08:18 PM
Last Post: Sleeprider
  Apap I_will_never_sleep_again 2 273 10-14-2016 02:58 PM
Last Post: trish6hundred
  Travel to Australia with Apap. Newbee2016 10 528 09-24-2016 12:06 PM
Last Post: SharonN
  Looking for complete list of AUTO apap's compatible with Sleepyhead Lanco 9 467 09-21-2016 08:08 PM
Last Post: Sleepster

Forum Jump:

Who's Online (Complete List)