Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

CFlex + and EPR - what is the difference
#1
Hi,
I noticed the philips has c flex+ settings and the resmeds has EPR settings what's the difference and how do they work?
Thanks
Cheers
Steve.
Post Reply Post Reply
#2
I can speak for Resmed only.

Resmed's EPR will reduce the inhale pressure setting (IPAP) by the value indicated for exhaling (EPAP). The value setting can range from 0 to 3. Each value represents the amount of reduction in cmH2O pressure (Set Pressure-EPR). The lowest possible pressure is 4cmH2O. This means that regardless of the EPR value, no exhale pressure can be below 4cmH2O.

Examples:
  1. A pressure range of 7-9cmH2O and an EPR of 3, the exhale pressure range would be 4-6cmH2O.
  2. Using the same EPR (3) and a pressure range 4-7cmH2O would provide an exhale pressure of 4cmH2O.

I hope this what you are looking for.
______________________
Useful Links -or- When All Else Fails:
Posting SleepyHead Charts in 5 Easy Steps
Robysue's Beginner's Guide to Sleepyhead
Apnea Helpful Tips
Post Reply Post Reply
#3
(07-28-2016, 10:53 AM)Crimson Nape Wrote: I can speak for Resmed only.

Resmed's EPR will reduce the inhale pressure setting (IPAP) by the value indicated for exhaling (EPAP). The value setting can range from 0 to 3. Each value represents the amount of reduction in cmH2O pressure (Set Pressure-EPR). The lowest possible pressure is 4cmH2O. This means that regardless of the EPR value, no exhale pressure can be below 4cmH2O.

Examples:
  1. A pressure range of 7-9cmH2O and an EPR of 3, the exhale pressure range would be 4-6cmH2O.
  2. Using the same EPR (3) and a pressure range 4-7cmH2O would provide an exhale pressure of 4cmH2O.

I hope this what you are looking for.

Crimson Nape et al,

Do you know how long it takes for the EPR to "kick in" on the ResMed units? I find when I first put the unit on, it's difficult to exhale, however as time progresses it gets easier. I'm curious if the computer needs to determine the exhale patterns, and so there is a delay in when the EPR starts...

Skip
Post Reply Post Reply


#4
The EPR is instantaneous. You are describing your body adapting to the pressure increase. Others,as well as myself, have reported waking up and thinking the CPAP isn't working because we're no longer able to detect the pressure.
______________________
Useful Links -or- When All Else Fails:
Posting SleepyHead Charts in 5 Easy Steps
Robysue's Beginner's Guide to Sleepyhead
Apnea Helpful Tips
Post Reply Post Reply
#5
One works by detecting the start or end of the inhale. The other works by detecting the start or end of the exhale. I can't remember which does which.

Some people feel that the xFlex is breathing for them, predicting their next breath and they don't like it. It feels forced. On the other hand, not many people notice the change of EPR other than it is easier to breathe out.

Both drop/increase from 1 to 3 cmH2O.

It all comes down to algorithm and rhythm.

And aliens.
PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

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.




Post Reply Post Reply
#6
(07-28-2016, 01:07 PM)Crimson Nape Wrote: The EPR is instantaneous. You are describing your body adapting to the pressure increase. Others,as well as myself, have reported waking up and thinking the CPAP isn't working because we're no longer able to detect the pressure.

Crimson,

Interesting you mention waking up and thinking it's not working/on. I've had that same experience...makes sense my body is being conditioned within the first few minutes.

Appreciate the feedback.

Skip
Post Reply Post Reply


#7
Interesting thread comparing AFlex to EPR. Even though you are asking about CFlex...I'm not exactly sure how that works compared to AFlex.

http://www.apneaboard.com/forums/Thread-...#pid145923

OpalRose
Apnea Board Moderator
www.ApneaBoard.com

How to Organize and Post ScreenShots

http://sleep.tnet.com/resources/sleepyhead/shorganize
https://sleep.tnet.com/reference/tips/imgur

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.




Post Reply Post Reply
#8
(07-28-2016, 01:07 PM)Crimson Nape Wrote: The EPR is instantaneous. You are describing your body adapting to the pressure increase. Others,as well as myself, have reported waking up and thinking the CPAP isn't working because we're no longer able to detect the pressure.

Thanks for sharing this. I am 7 weeks in with pressure range from 11 to 17. I have just started experiencing this. It is rather nice!Smile
Post Reply Post Reply
#9
All the xFlex are essentially the same, just different because of the machine they are on. C-Flex is on the CPAP machines, A-Flex is on the APAP machines and B-Flex is on the BiPAP machines.

Oh, and the wiki 'splains the differences.
http://www.apneaboard.com/wiki/index.php...ion_Relief
PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

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.




Post Reply Post Reply


#10
EPR (ResMed machines) drops exhale pressure by corresponding number:
EPR 3 = 3cm drop in pressure
EPR 2 = 2cm drop
EPR 1 = 1cm drop.

AFlex/CFlex (Respironics machines) works a little differently.
A-Flex of 1, 2 and 3 all have a max of 2cm of straight pressure drop but have different amounts of additional Flow-based pressure drop.

There is a difference on when it gives the pressure relief when using the different settings.

This thread which vsheline gives a fairly good explanation of how it works.
http://www.apneaboard.com/forums/Thread-...#pid145923

I personally have never received more than 1.5cm pressure relief regardless of the setting I use, and SleepyHead confirms this. It is based on flow and how hard a person exhales. I believe I'm a shallow breather.

OpalRose
Apnea Board Moderator
www.ApneaBoard.com

How to Organize and Post ScreenShots

http://sleep.tnet.com/resources/sleepyhead/shorganize
https://sleep.tnet.com/reference/tips/imgur

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.




Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Difference F20 vs F20 for Her regbeach 6 343 07-12-2017, 09:29 AM
Last Post: regbeach
  [Equipment] Old CFlex Remstar Plus Manual needed Skillful 5 290 05-19-2017, 08:22 PM
Last Post: trish6hundred
  Cflex + Causing Mouth Breathing? redmed 19 644 05-04-2017, 04:49 PM
Last Post: redmed
  Huge difference due to sleeping position - Is sleeping face down enough? 99zzz 8 623 04-22-2017, 04:54 PM
Last Post: 99zzz
Question Pressure Difference Btwn P10 & DreamWear Hydrangea 17 776 04-22-2017, 01:10 PM
Last Post: Hydrangea
  [Equipment] Is there a difference between ResMed and Phillips pressure algorithms doickle 7 738 02-02-2017, 12:30 PM
Last Post: Sleeprider
  Difference in reporting between resmed and HMD andefor65 3 339 01-16-2017, 10:03 AM
Last Post: andefor65

Forum Jump:

New Posts   Today's Posts




About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.

For any more information, please use our contact form.