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General Discussion on any topic relating to CPAP and/or Sleep Apnea.
ineedasnooze
 
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Why does my treatment pressure not increase(s9)?

Postby ineedasnooze on Thu Mar 25, 2010 1:52 am

I got a new fan dangled contraption called an s9 lol.

Anyways, I havnt slept with it yet. But, I turned ramp off and am sitting here, and its set to autoset, but the pressure wont increase past 4.0 even if I stop breathing..................

How do I access the menu to check my min and max pressures etc?

Sorry but doc set it up, but he hadnt seen one before.

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ozij
 
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Re: Why does my treatment pressure not increase(s9)?

Postby ozij on Thu Mar 25, 2010 3:09 am

ineedasnooze wrote:I got a new fan dangled contraption called an s9 lol.

Anyways, I havnt slept with it yet. But, I turned ramp off and am sitting here, and its set to autoset, but the pressure wont increase past 4.0 even if I stop breathing..................

How do I access the menu to check my min and max pressures etc?

Sorry but doc set it up, but he hadnt seen one before.

The machine analyses breathing patterns, and decides it needs to raise pressure based on that analysis. When you're awake, it see a very unstable breathing, and ignores it. It will start responding when it identifies sleep breathing disturbed by obstructions -- very different from waking breathing.

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Mask: Hybrid Full Face CPAP Mask with Nasal Pillows and Headgear
Humidifier: S9™ Series H5i™ Heated Humidifier with Climate Control
Additional Comments: Software: Updated version of ResScan. First machine (5 years) was PB420E. Tried others including Autoset S8 II
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Re: Why does my treatment pressure not increase(s9)?

Postby Guest on Thu Mar 25, 2010 3:38 am

oh man that is tricky.

so its probably ok then?

how do i access the advanced menu just to check he didnt accidentally drop the max pressure to 4?

Julie
 
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Re: Why does my treatment pressure not increase(s9)?

Postby Julie on Thu Mar 25, 2010 3:43 am

Just relax! The machine knows what to do and when. You can't monitor anything while you're awake (the goblins in the machine know everything! :lol:

fiberfan
 
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Re: Why does my treatment pressure not increase(s9)?

Postby fiberfan on Thu Mar 25, 2010 3:43 am

Guest wrote:how do i access the advanced menu just to check he didnt accidentally drop the max pressure to 4?

Press both the setup and push dial buttons down for 3 seconds will get you into the clinical menu.

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Mask: Zzz-Mask SG Full Face CPAP Mask with Headgear
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Additional Comments: ResScan 3.14 and SleepyHead software.
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Re: Why does my treatment pressure not increase(s9)?

Postby Guest on Thu Mar 25, 2010 3:48 am

Noice, thanks

Hope everyone else is enjoying their s9. will post what i think after i get use to it.

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JohnBFisher
 
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Re: Why does my treatment pressure not increase(s9)?

Postby JohnBFisher on Thu Mar 25, 2010 8:44 am

ineedasnooze wrote:... Anyways, I haven't slept with it yet. But, I turned ramp off and am sitting here, and its set to autoset, but the pressure wont increase past 4.0 even if I stop breathing ...

Greetings! And welcome to the forum.

You wondered why the unit would not increase the pressure when you just "stop breathing". Well, the algorithm is designed to NOT increase your pressure if you do not have an obstruction. And just stopping breathing would appear to the unit as a central apnea, not an obstructive apnea. In that case, most of the autoset algorithms will specifically NOT attempt to increase the pressure.

So, until you actually have an obstruction it would not start to increase the pressure.

Hope that helps.

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Additional Comments: User of xPAP therapy for over 20 yrs. Resmed & Respironics ASV units with EEP=9cm-14cm H2O; PSmin=4cm H2O; PSmax=15cm H2O; Max=25cm H2O
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dsm
 
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Re: Why does my treatment pressure not increase(s9)?

Postby dsm on Thu Mar 25, 2010 3:06 pm

JohnBFisher wrote:
ineedasnooze wrote:... Anyways, I haven't slept with it yet. But, I turned ramp off and am sitting here, and its set to autoset, but the pressure wont increase past 4.0 even if I stop breathing ...

Greetings! And welcome to the forum.

You wondered why the unit would not increase the pressure when you just "stop breathing". Well, the algorithm is designed to NOT increase your pressure if you do not have an obstruction. And just stopping breathing would appear to the unit as a central apnea, not an obstructive apnea. In that case, most of the autoset algorithms will specifically NOT attempt to increase the pressure.

So, until you actually have an obstruction it would not start to increase the pressure.

Hope that helps.


John,

I would have thought that closing ones throat (to simulate not breathing) would look just like an obstruction. Am pretty sure the FOT signal would see it that way ?

A central is surely only detectable when the FOT sensing passes through an open throat. Closing one's throat would cause the FOT signal sampling to detect the block even if it is a deliberate act to simulate an apnea.

Cheers

DSM

(Don't have an S9 to try it out :( )
xPAP and Quattro std mask (plus a pad-a-cheek anti-leak strap)


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