[Diagnosis] modest811 - Therapy Thread

[Sleeprider]

We have a Wiki I put together on this http://www.apneaboard.com/wiki/index.php...cillations
Anyone that wants to join the Wiki Editor's group is welcome to make improvements on my draft work there.

[modest811]

Great guys, thank you so much. Just wanted to clarify.

Like i said in the first post it seems the f20 mask causes these patterns on Oscars for me more than the dreamwear FFM. Good to know it's just an error and not a flow limitation causing it.

[2SleepBetta]

The Insp. Time problem seen in OSCAR for Autosets has dogged my work attempting to get cleaner duty cycle ratios, Ti/total. I want the ratios to analyze and help me understand interrelationships between dense, high FL and the other breath metrics from my Autoset days.

Necessary numerical integration of the FR curve yielded tidal volumes for inspirations and cardio waves. After dismissing an approach that required, say, at least 10 ea. of .04 second x FR strips leading into and making up an Insp. wave, I found results better by low pass filtering of the cardio with"TV"<=.025 L. Doing that gave much improved times and cleaner ratios, but curves are still noisy.

As I recall, one of the Resmed detection patents has a somewhat similar scheme which evaluates the start of an inspiratory wave, before committing to it.

My Results compare fairly well to OSCAR portrayals of the Autoset data, artifacts in both included.

It's easier doing such analysis with post processing and I have no idea of either how the VAuto does the job nor how OSCAR might approach this for Autosets.

[modest811]

Hey guys, did some research on this and saw posts on it with people having similar problems and wanted to just put in that it's happened to me too. 

Been going back and forth between the Dreamwear FFM and the F20. Last night I used the F20 after not using it for a couple nights and got this INSANE oscar report. 


One picture is my sleep last night with the F20 - the crazy one with high flow limitations
one pictures my last sleep with the F20 mask that was perfectly normal
and another picture is the crazy breathing. 

Never seen this before. The only thing I did different was pop one of those over night tab things that are supposed to prevent you from dry mouth. Have no idea what caused this. I think it's the mask? I guess just go dreamwear from now on? 

Thanks guys.

[modest811]

This is the night previous with the dreamwear mask.

[cathyf]

It's not the mask -- I've got 2-1/2 years of that with a dreamwear mask, 2 years with an amara view, a year with an F10, plenty of nights with F30, F30i, P30i, N30i, dreamwear nasal -- every mask I've ever used.

EPR helps some, maybe. If you can control the trigger sensitivity (which you can't on an APAP or CPAP) then staying away from "very high" seems to help me.

[modest811]

Hmmm, it's just strange it happened the night I switched over to the F20 mask after a couple nights the dreamwear.

To be fair I feel fairly crummy today, so something is up. My fitbit said I didn't get as much REM as usual, but heart rate wasn't actually too bad. I film myself when sleeping too and I was not breating at 50 breaths a minute like it says, no way. It has to be an error of some kind.

[Jeff8356]

There should be a setting in your machine for "mask type".  Do you change that from Full Face to Pillows or Nasal when you switch masks?

I'm not sure if this would make a difference or not, but may be worth a try.

[mper6794]

Hi,
_ just to share my own experience: two things exarcebates my RR to anomalous ranges: infections and REM-associated nightmares;

good luck

[desaturator]

Perhaps zoom in of the flow graph at the time of maximum respiratory rate, and just count the breaths in a minute. You might see extra zero-crossings in the flow waveform, that can be counted as extra breaths. I see these as well; I think this subject is being discussed in other threads.

BW, DS