OSCAR data display question

[unknown12345]

Hi,

Pls see below graph from OSCAR for my AirCurve 10 ASV settings:

AirCurve_10_Settings_pic1.JPG (73.81 KiB) Viewed 384 times

Which means pressure ranges would be : (8.2 <= EPAP <= 15) and (8.2 <= IPAP <= 23) ... correct?
If so, then why in the "Statistics" section it shows "Max EPAP = 18.0" ?? (red underlined)

Below pic is the pressure blotter for the same night (3/2/2020), as you can see max EPAP (green line in the graph) never went above "15.0"

AirCurve_10_Settings_pic2.JPG (80.93 KiB) Viewed 384 times

Is there a bug in the OSCAR?

Thx.

[unknown12345]

Forgot to include OSCAR version, here it is:

AirCurve_10_Settings_OSCAR_Version.JPG (16.1 KiB) Viewed 382 times

[Pugsy]

OSCAR has more than one little bug.
Even more bugs when people are using the various ASV kind of machines.
You found one of them...just ignore it.

[zonker]

Hi,

Pls see below graph from OSCAR for my AirCurve 10 ASV settings:
AirCurve_10_Settings_pic1.JPG

Which means pressure ranges would be : (8.2 <= EPAP <= 15) and (8.2 <= IPAP <= 23) ... correct?
If so, then why in the "Statistics" section it shows "Max EPAP = 18.0" ?? (red underlined)

Below pic is the pressure blotter for the same night (3/2/2020), as you can see max EPAP (green line in the graph) never went above "15.0"
AirCurve_10_Settings_pic2.JPG
Is there a bug in the OSCAR?

Thx.

you may want to report this in the first thread-

viewtopic/t175269/OSCAR-Suggestions-amp ... rting.html

[Pugsy]

It's already a known bug....no need to report it.

[zonker]

It's already a known bug....no need to report it.

which is prolly why you didn't suggest it!

again, HOW do you keep all this "stuff" in your head?

[unknown12345]

OSCAR has more than one little bug.
Even more bugs when people are using the various ASV kind of machines.
You found one of them...just ignore it.

Curiosity question : From the clinician manual I am deducing that pressure(s) are determined as follows:

(Min EPAP <= EPAP <= Max EPAP) and
[ (Min EPAP <= IPAP <= (Max EPAP + Max PS) ]

correct ?

If so, then how is "Min PS" used by the algorithm?

Thx.

[chunkyfrog]

Some heads have room for stuff that other heads disregard.

It's just how we are wired.

[unknown12345]

OSCAR has more than one little bug.
Even more bugs when people are using the various ASV kind of machines.
You found one of them...just ignore it.

Curiosity question : From the clinician manual I am deducing that pressure(s) are determined as follows:

(Min EPAP <= EPAP <= Max EPAP) and
[ (Min EPAP <= IPAP <= (Max EPAP + Max PS) ]

correct ?

If so, then how is "Min PS" used by the algorithm?

Thx.

Forgot to include pic from manual, see below:

AirCurve_10_Pressure_Range.JPG (76.66 KiB) Viewed 319 times

Based on the above pic, then may be I got the IPAP formula wrong!!

If so, is IPAP range calculated as follows?? (note the addition of "Min PS" in red)

[ (Min EPAP + Min PS) <= IPAP <= (Max EPAP + Max PS) ]

[Pugsy]

OSCAR has more than one little bug.
Even more bugs when people are using the various ASV kind of machines.
You found one of them...just ignore it.

Curiosity question : From the clinician manual I am deducing that pressure(s) are determined as follows:

(Min EPAP <= EPAP <= Max EPAP) and
[ (Min EPAP <= IPAP <= (Max EPAP + Max PS) ]

correct ?

If so, then how is "Min PS" used by the algorithm?

Thx.

In what context? Minimum PS is nothing more than the minimum difference between inhale and exhale.
What I have always wondered about (and couldn't ever find out anything) was what in the algorithm tells the machine to vary the PS or increase it from the minimum when a variable PS is available...and why and how much.
I know big PS is needed to deal with central apneas...that rather large burst of PS so that the difference between inhale and exhale is substantial....what about minor differences? I never could find any real documentation as to what, how or how much drives the algorithm to do its job.