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[Pressure] about EPAP and IPAP for Airsense s10 - Printable Version

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about EPAP and IPAP for Airsense s10 - format - 11-02-2019

Dear Sir

From this picture, I got some questions
For pressure
1.Which value can hold airway open? red line(IPAP) or green line(EPAP)? 
2.if turn off EPR for Airsense S10 (EPAP=IPAP), then set up pressure 4.0 to 7.54 (EPAP), or set up 5.0 to 10.54 (pressure), which one is enough to hold airway open?
3.How different is between them? (open EPR (Get EPAP) or just turn off EPR and set up right pressure value to hold airway open (No EPAP)
4 How do I know a non-EPR pressure would be more appropriate from this picture (or appropriate pressure with EPR 3)? Because from this picture, Where can I get right setting value for pressure (Min to Max),

Thanx , everyone

[attachment=16697]


RE: about EPAP and IPAP for Airsense s10 - DeepBreathing - 11-02-2019

Hi Format.

It's the EPAP which hold the airway open during exhale. With the Airsense 10 Autoset, the pressure during inhalation is the set pressure. The EPR (exhalation pressure relief) lowers the pressure as you exhale. This is so that you can breathe out easily against the pressure the machine is producing. But if you set EPR at (say) 3, you need to increase the pressure to compensate.

In the chart you have given us, the minimum set pressure (7 cmH2O) is the inhale pressure. The machine then deducts 3 cm of EPR to give you an exhale pressure of 4.0. The numbers for apnea and hypopnea look pretty good, so if you are comfortable with this pressure I don't see any need to change it.

Just to confirm - your profile says you're using a Prisma machine - have you changed to Resmed?


RE: about EPAP and IPAP for Airsense s10 - format - 11-02-2019

(11-02-2019, 03:31 AM)DeepBreathing Wrote: Hi Format.

It's the EPAP which hold the airway open during exhale. With the Airsense 10 Autoset, the pressure during inhalation is the set pressure. The EPR (exhalation pressure relief) lowers the pressure as you exhale. This is so that you can breathe out easily against the pressure the machine is producing. But if you set EPR at (say) 3, you need to increase the pressure to compensate.

In the chart you have given us, the minimum set pressure (7 cmH2O) is the inhale pressure. The machine then deducts 3 cm of EPR to give you an exhale pressure of 4.0. The numbers for apnea and hypopnea look pretty good, so if you are comfortable with this pressure I don't see any need to change it.

Just to confirm - your profile says you're using a Prisma machine - have you changed to Resmed?


Dear DB Sir:

Actually I have both, resmed Airsense S10 is my back up machine, but resmed's AHI is lower than Prisma's, so maybe I will change to use resmed Airsense S10 mostly

BTW, I still have one question more, for question 3 as below Could you let me know their difference and which setting is better? thanx again

3.How different is between them? Turn on EPR (Get EPAP-4.0 to 7.54) or just turn off EPR and set up Min to Max(4.0 to 7.54) (EPAP=IPAP)


RE: about EPAP and IPAP for Airsense s10 - format - 11-02-2019

Dear DB Sir:

I also wanna show you another prisma 20A's picture. When OSA happen, Prisma will cancel SofaPAP(EPR) and raise pressure to solve OSA (EPAP=IPAP)

Resmed have the same feature as Prisma? thanx

[attachment=16700]


RE: about EPAP and IPAP for Airsense s10 - format - 11-02-2019

[attachment=16701]

Sorry, updated with Picture


RE: about EPAP and IPAP for Airsense s10 - Sleeprider - 11-02-2019

Format, I reviewed your posted results and would like to suggest a starting pressure of 8.0 minimum pressure with EPR at 2, maximum pressure 14.0. You have flow limitation in your results, and your events are hypopnea. You need the EPR rather than constant pressure to help with those issues. The higher starting pressure will help elevate EPAP to 6.0 which should help prevent the OA events we see. Overall, your results are actually quite good, but I think the higher starting pressure should help.


RE: about EPAP and IPAP for Airsense s10 - format - 11-02-2019

(11-02-2019, 09:28 AM)Sleeprider Wrote: Format, I reviewed your posted results and would like to suggest a starting pressure of 8.0 minimum pressure with EPR at 2, maximum pressure 14.0.  You have flow limitation in your results, and your events are hypopnea. You need the EPR rather than constant pressure to help with those issues.  The higher starting pressure will help elevate EPAP to 6.0 which should help prevent the OA events we see.  Overall, your results are actually quite good, but I think the higher starting pressure should help.

How to know low limitation in my results, and my events are hypopnea from this chart?

If I turn off EPR and set up a starting pressure of 6.0 minimum pressure, maximum pressure 12.0.

Will it be the same result as your suggestion? (You suggest a starting pressure of 8.0 minimum pressure with EPR at 2, maximum pressure 14.0.)

Thank you!!


RE: about EPAP and IPAP for Airsense s10 - Sleeprider - 11-02-2019

With my suggested settings you will get both IPAP and EPAP pressure in a range from 8.0/6.0 to 14.0/12.0. I doubt you will get close to the maximum. What the EPR does is to provide a small pressure support to inspiration so that it is a little easier to inhale and easier to exhale, and that is what reduces the flow limitations. EPAP is to keep the airway open, and the pressure support is to help with inspiratory volume and rate (flow). The important part of this is your EPAP will not be less than 6.0, and that is a big difference compared to the chart you posted. I think you will find this more comfortable and that it functions better.


RE: about EPAP and IPAP for Airsense s10 - format - 11-07-2019

Dear Sir:

I change to use Vauto, this is my chart as below, Do you have any good suggestion for pressure? thanx very much
[attachment=16827]


RE: about EPAP and IPAP for Airsense s10 - Sleeprider - 11-07-2019

Results on the Vauto look good, and I don't think the morning CA events are anything to worry about. At 5.0 EPAP min, PS 2, IPAP max 10 your pressure varies by only 1-cm, so your needs are met with fairly low pressures. How are you feeling? Is this therapy comfortable for you?