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[Equipment] Expiratory pressure setting for AirSense 10 Autoset
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bazder Offline

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Posts: 9
Joined: Jan 2016

Machine: AirsSense 10 AutoSet
Mask Type: Hybrid
Mask Make & Model: Respironics Amara View
Humidifier: unsure
CPAP Pressure: 6 - 13
CPAP Software: Not using software

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Sex: Male
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Post: #1
Expiratory pressure setting for AirSense 10 Autoset
Expiratory Pressure Relief setting for ResMed AirSense 10 Autoset manual says "When EPR is enabled, the delivered pressure will not drop below a minimum pressure of 4 cm H 2 O, regardless of the settings." so what I don't understand is the EPR levels of 1, 2, or 3 cm H2O? If my regular pressure range is 5 to 12 what will be the effect of changing the EPR to 1, 2 or 3 ?

I'm asking because the sales guy set it to 3 and I think the sample unit I tested on was set to 1. The new machine seems like it's pushing the air back in my lungs when I breathe out but the test machine was much more relaxed.

any help?

thanks


------------------------manual says-------------------------
EPR
On—EPR is enabled.
Off—EPR is disabled.
The following settings are only available if EPR is On:
EPR Type Full Time—If set to Full Time, EPR is enabled for the whole therapy session.
EPR Level 1, 2, 3 cm H 2 O
Ramp Only—If set to Ramp Only, EPR is only enabled during ramp time.
When EPR is enabled, the delivered pressure will not drop below a minimum pressure of 4 cm H 2 O,
regardless of the settings.
(This post was last modified: 01-19-2016 12:17 AM by bazder.)
01-19-2016 12:10 AM
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zonk Offline

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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: #2
RE: Expiratory pressure setting for AirSense 10 Autoset
(01-19-2016 12:10 AM)bazder Wrote:  so what I don't understand is the EPR levels of 1, 2, or 3 cm H2O? If my regular pressure range is 5 to 12 what will be the effect of changing the EPR to 1, 2 or 3 ?
At low pressure, some would feel not getting enough air and the fresh air entering the mask is not sufficient to flush out exhaled air and can result in re-breathing own exhaled air

Whether EPR 1, 2, or 3 , exhale pressure does not drop below 4
With auto range 5-12 ... EPR level changes as pressure fluctuate
e.g ... EPR level 2, when pressure at 5, exhale pressure 4 (drop by 1) but as pressure increase to 6, exhale pressure 4 (drop by 2), again as pressure increase further, EPR level becomes the difference between inhale pressure and exhale pressure which is always 2

Personally, I don't use EPR, find it annoying but for some is a godsend
You can change it to whatever level feel most comfortable to you
01-19-2016 06:15 AM
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bazder Offline

Members

Posts: 9
Joined: Jan 2016

Machine: AirsSense 10 AutoSet
Mask Type: Hybrid
Mask Make & Model: Respironics Amara View
Humidifier: unsure
CPAP Pressure: 6 - 13
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #3
RE: Expiratory pressure setting for AirSense 10 Autoset
thanks for the answer ... strangely enough the pressure seemed less last night so I'll leave it alone for a while - I think I'm still getting used to the whole thing.
01-19-2016 11:02 AM
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Possum Online

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Posts: 254
Joined: Oct 2015

Machine: Resmed Airsense Autoset A10
Mask Type: Nasal pillows
Mask Make & Model: Airfit P10
Humidifier: (included in CPAP model)
CPAP Pressure: 8-12
CPAP Software: ResScan SleepyHead

Other Comments: Innovo CMS-50F+ pulse oximeter

Sex: Male
Location: San Diego, California, USA

Post: #4
RE: Expiratory pressure setting for AirSense 10 Autoset
(01-19-2016 06:15 AM)zonk Wrote:  At low pressure, some would feel not getting enough air and the fresh air entering the mask is not sufficient to flush out exhaled air and can result in re-breathing own exhaled air

Whether EPR 1, 2, or 3 , exhale pressure does not drop below 4
With auto range 5-12 ... EPR level changes as pressure fluctuate
e.g ... EPR level 2, when pressure at 5, exhale pressure 4 (drop by 1) but as pressure increase to 6, exhale pressure 4 (drop by 2), again as pressure increase further, EPR level becomes the difference between inhale pressure and exhale pressure which is always 2

Personally, I don't use EPR, find it annoying but for some is a godsend
You can change it to whatever level feel most comfortable to you

Zonk,

I've always wondered why many people seem to be against using the EPR setting, since I always thought it could only make therapy more comfortable by making it easier to exhale. Are you saying that if you don't use it, you can maintain fresher air (more oxygen-rich and CO2-poor) in the mask, by forcing exhaled air to be pushed out of the exhale ports due to the higher pressure at exhale? If so, that might be the answer to my lingering issue with blood oxygen desaturation events..

Thanks,
Possum
01-19-2016 01:09 PM
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Sleeprider Online
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Posts: 3,361
Joined: Dec 2014

Machine: Resmed Aircurve 10 Vauto
Mask Type: Nasal pillows
Mask Make & Model: Resmed Airfit P10
Humidifier: Resmed Climateline
CPAP Pressure: Auto Bilevel 18/9, PS 3
CPAP Software: ResScan SleepyHead EncoreBasic

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Sex: Male
Location: Where they make Respironics

Post: #5
RE: Expiratory pressure setting for AirSense 10 Autoset
EPR is kind of like using a bilevel machine with a pressure support of 3, except that instead of setting the EPAP minimum pressure, you begin with the CPAP minimum pressure, and EPR is subtracted from that.

With bilevel an EPAPmin is specified that is high enough to prevent airway collapse. Pressure support is added to obtain the IPAP pressure which should resolve hypopnea and RERA. For Auto Bilevel, the machine can increase EPAP and IPAP as needed above the minimum. CPAP with EPR is based on the CPAP pressure settings, but exhale relief is subtracted from that pressure. It is easy to imagine many people having EPAP pressure that allows airway collapse leading to increased OA.

For any CPAP the minimum pressure is 4.0, so EPR does not take effect until pressure is higher than 4.0. As a result, with low pressure settings up to 7.0, the possible IPAP/EPAP pressures are: 4/4, 5/4, 6/4, 7/4, 8/5 etc. Think in terms of bilevel therapy; someone who needs a minimum EPAP pressure of 8.0 needs to set the CPAP min pressure to 11.0.

EPR is great, but I think a lot of people miss how much it potentially reduces therapy pressures, and can allow OA to occur following expiration, before inspiration begins.

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01-19-2016 02:22 PM
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trish6hundred Offline

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Machine: Resmed S9 AutoSet for Her
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CPAP Pressure: 10 - 7-20 Cm H2O
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Post: #6
RE: Expiratory pressure setting for AirSense 10 Autoset
Hi bazder,
WELCOME! to the forum.!
Much success to you with your CPAP therapy.

trish6hundred
01-19-2016 07:04 PM
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