EPR setting what is it

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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zorrro13
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EPR setting what is it

Post by zorrro13 » Tue Sep 18, 2007 7:38 pm

My resmed s8 Auto has a setting that says EPR on/off. Cant find my manual ,anyone know what that is?


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Slinky
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Post by Slinky » Tue Sep 18, 2007 7:54 pm

EPR is expiration pressure relief. The settings are 1, 2 or 3. 1 will give you 1 cm of pressure relief, 2 will give 2 cms, etc. So if your pressure is set at 8 and your EPR at 2 you would receive only 6 cms of pressure when you exhale.

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zorrro13
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Post by zorrro13 » Tue Sep 18, 2007 8:15 pm

Thanks Slinky
so i really only need this if Im struggling with pressure. Does it work in Apap mode?


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Post by Slinky » Tue Sep 18, 2007 8:21 pm

You're welcome. No, on the Resmeds the EPR doesn't work in automode.

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Bookbear
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Post by Bookbear » Tue Sep 18, 2007 8:58 pm

Zorro, its really intended to provide an almost bi-pap like function, especially at higher pressures. As with a bi-pap, the exhalation relief (EPR) lasts the entire exhalation, not just during the initial part of the exhalation, as with c-flex on the Respironics machines. Unlike a true bi-pap, you can only have a maximum of 3 cm/H2O between the inhale and exhale pressures with EPR. A true bi-pap would allow for a greater range.

Yes, it can be turned off if not needed.

No, it does not function in auto, only in straight cpap.

You could view your ResMed auto this way: auto setting for a self-titration over a period of several weeks. Note the average pressure you spend 95% of your time at or below, and then use that as your pressure setting for your straight cpap setting. Use EPR is you feel the need during exhalation. Watch the numbers and raise the pressure if you see that your AHI is too high (5 or less is the goal, with lower being better) or if you see your AHI going up over time.

Of course, I am not a doctor; these are just suggestions and observations. Your mileage may vary.


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zorrro13
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Post by zorrro13 » Tue Sep 18, 2007 10:42 pm

[quote="Bookbear"]Zorro, its really intended to provide an almost bi-pap like function, especially at higher pressures. As with a bi-pap, the exhalation relief (EPR) lasts the entire exhalation, not just during the initial part of the exhalation, as with c-flex on the Respironics machines. Unlike a true bi-pap, you can only have a maximum of 3 cm/H2O between the inhale and exhale pressures with EPR. A true bi-pap would allow for a greater range.

Yes, it can be turned off if not needed.

No, it does not function in auto, only in straight cpap.

You could view your ResMed auto this way: auto setting for a self-titration over a period of several weeks. Note the average pressure you spend 95% of your time at or below, and then use that as your pressure setting for your straight cpap setting. Use EPR is you feel the need during exhalation. Watch the numbers and raise the pressure if you see that your AHI is too high (5 or less is the goal, with lower being better) or if you see your AHI going up over time.

Of course, I am not a doctor; these are just suggestions and observations. Your mileage may vary.