Are huge flow rate variations normal?

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palerider
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Re: Are huge flow rate variations normal?

Post by palerider » Wed Oct 22, 2014 7:51 am

justinjustin wrote:
Wulfman... wrote:What pressures are you using or at what pressures are these charts/reports being recorded?
EPAP 7cm
IPAP 6cm
MaxIPAP 12cm
you do realize those numbers aren't possible. epap can't be less than ipap.

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justinjustin
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Re: Are huge flow rate variations normal?

Post by justinjustin » Wed Oct 22, 2014 8:41 am

palerider wrote:
justinjustin wrote:
Wulfman... wrote:What pressures are you using or at what pressures are these charts/reports being recorded?
EPAP 7cm
IPAP 6cm
MaxIPAP 12cm
you do realize those numbers aren't possible. epap can't be less than ipap.
Oops, I meant Pressure support of 6;

EPAP 7cm
PS 6cm
maxIPAP 12cm

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Re: Are huge flow rate variations normal?

Post by palerider » Wed Oct 22, 2014 8:48 am

justinjustin wrote:
palerider wrote:
justinjustin wrote:
Wulfman... wrote:What pressures are you using or at what pressures are these charts/reports being recorded?
EPAP 7cm
IPAP 6cm
MaxIPAP 12cm
you do realize those numbers aren't possible. epap can't be less than ipap.
Oops, I meant Pressure support of 6;

EPAP 7cm
PS 6cm
maxIPAP 12cm
epap 7 + ps 6 = ipap 13 do you mean max epap? 12?

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Re: Are huge flow rate variations normal?

Post by Pugsy » Wed Oct 22, 2014 8:51 am

EPAP plus PS equals IPAP
7 plus 6 equals 13 and not 12 IPAP max. Nit picking I know.
Is your PS fixed at 6 or is there a range? Like with my Adapt I have a minimum PS value and maximum value available to me.
If your PS is fixed (set by doing the minimum and maximum to be the same)...at these settings above, the machine can't do much moving around at all...which may be just fine for your situation but normally if centrals are a problem the settings usually allow for more bursts of pressure to deal with the centrals...did you say you had complex sleep apnea? I don't remember.

Which model machine do you have..ResMed S9 Adapt...is it the 36007 or 36037?

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Re: Are huge flow rate variations normal?

Post by justinjustin » Wed Oct 22, 2014 9:56 am

Pugsy wrote:EPAP plus PS equals IPAP
7 plus 6 equals 13 and not 12 IPAP max. Nit picking I know.
Is your PS fixed at 6 or is there a range? Like with my Adapt I have a minimum PS value and maximum value available to me.
If your PS is fixed (set by doing the minimum and maximum to be the same)...at these settings above, the machine can't do much moving around at all...which may be just fine for your situation but normally if centrals are a problem the settings usually allow for more bursts of pressure to deal with the centrals...did you say you had complex sleep apnea? I don't remember.

Which model machine do you have..ResMed S9 Adapt...is it the 36007 or 36037?

Sorry for all the confusion. My settings:

Resmed ASV 36007 - EPAP 7.0 PS 6.0-12.0 (cmH2O)

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Re: Are huge flow rate variations normal?

Post by palerider » Wed Oct 22, 2014 10:35 am

justinjustin wrote:
Pugsy wrote:EPAP plus PS equals IPAP
7 plus 6 equals 13 and not 12 IPAP max. Nit picking I know.
Which model machine do you have..ResMed S9 Adapt...is it the 36007 or 36037?
Sorry for all the confusion. My settings:

Resmed ASV 36007 - EPAP 7.0 PS 6.0-12.0 (cmH2O)
they dumped an old asv on you? *boggle*

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Re: Are huge flow rate variations normal?

Post by Day_Dreamer » Wed Oct 22, 2014 12:33 pm

justinjustin wrote:
palerider wrote:
justinjustin wrote:
palerider wrote:
heavy breathing, question is, why?

how's your o2 at those times?
I dont have oxygen recording, but my studies never had much desats
I just figured it might be interesting what's happening with your heart rate and o2 sats during those breathing episodes.

Hmm yeah good ideas. I wish I had more data!

JJ,

As you probably know you can get a pulse/oxy meter to interface with sleepyhead
I am not sure how long your centrals are nor how frequent
The UARS is usually characterized with little to no oxygen desats

My sleep test reveled an AHI of less than 3 and lowest oxy desat was 90%. Like you I suffer from UARS my RDI was 17, with awful sleep hygiene.

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Re: Are huge flow rate variations normal?

Post by musculus » Wed Oct 22, 2014 2:21 pm

What is the unit of the flow rate (L/min)? If so, your airway is wildly open in sleep!!
My pressure is much higher than yours (16/14) while my flow rate mostly stay within 26 L/min.

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Re: Are huge flow rate variations normal?

Post by justinjustin » Wed Oct 22, 2014 5:36 pm

palerider wrote:
justinjustin wrote:
Pugsy wrote:EPAP plus PS equals IPAP
7 plus 6 equals 13 and not 12 IPAP max. Nit picking I know.
Which model machine do you have..ResMed S9 Adapt...is it the 36007 or 36037?
Sorry for all the confusion. My settings:

Resmed ASV 36007 - EPAP 7.0 PS 6.0-12.0 (cmH2O)
they dumped an old asv on you? *boggle*

No I double checked. 36037.

And yes, RDI of 21, UARS. I never have many centrals, but had many centrals emerge because I suspect from flying to a higher altitude with Dr. Krakow.

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Re: Are huge flow rate variations normal?

Post by Wulfman... » Wed Oct 22, 2014 5:53 pm

palerider wrote:that's some mighty heavy breathin you're doing there, podnah!
Questions:
If the pressure settings of the machine are too low, wouldn't the user's breathing be heavier? (trying to get more air inhaled)
Could that theoretically be what's being seen in these reports?


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palerider
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Re: Are huge flow rate variations normal?

Post by palerider » Wed Oct 22, 2014 6:00 pm

Wulfman... wrote:
palerider wrote:that's some mighty heavy breathin you're doing there, podnah!
Questions:
If the pressure settings of the machine are too low, wouldn't the user's breathing be heavier? (trying to get more air inhaled)
Could that theoretically be what's being seen in these reports?
possibly, but iirc, he doesn't want to up the epap and give the asv it's head to stop centrals because of aerophagia.

that's why I was wondering what his hr and spo2 were doing during those heavy breathing times, I was also curious what the waveforms looked like.

if it was me, I'd rig up an ir camera to record what was happening too, and see if there was anything noticable happening.

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Re: Are huge flow rate variations normal?

Post by justinjustin » Wed Oct 22, 2014 7:17 pm

palerider wrote:
Wulfman... wrote:
palerider wrote:that's some mighty heavy breathin you're doing there, podnah!
Questions:
If the pressure settings of the machine are too low, wouldn't the user's breathing be heavier? (trying to get more air inhaled)
Could that theoretically be what's being seen in these reports?
possibly, but iirc, he doesn't want to up the epap and give the asv it's head to stop centrals because of aerophagia.

that's why I was wondering what his hr and spo2 were doing during those heavy breathing times, I was also curious what the waveforms looked like.

if it was me, I'd rig up an ir camera to record what was happening too, and see if there was anything noticeable happening.
Good ideas. Now we're breaking out the heavy tech.

My HR and spo2 were fairly normal in all my sleep studies.

I don't raise the EPAP because my AHI has been 0.0 - 2.0 consistently and no centrals showing up..

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palerider
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Re: Are huge flow rate variations normal?

Post by palerider » Wed Oct 22, 2014 7:24 pm

justinjustin wrote:Good ideas. Now we're breaking out the heavy tech.

My HR and spo2 were fairly normal in all my sleep studies.

I don't raise the EPAP because my AHI has been 0.0 - 2.0 consistently and no centrals showing up..
your sleep studies also said you'd be well treated with the asv, and we know how that's worked out...

perhaps you weren't having those episodes in your studies...

I'm *guessing* that your HR will be elevated, and your spo2 will be too, becuase of the heavy breathing...

the camera may show something, movment, other things...

I'm not even guessing, just trying to think how to gather more data about what's happening.

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