Strange Flow Charts

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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Rubicon
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Re: Strange Flow Charts

Post by Rubicon » Mon Feb 28, 2022 3:44 am

Rubicon wrote:
Sun Feb 27, 2022 9:05 pm
Image
Hmmm.

There's an inspiratory effort there that doesn't trigger end of EPR. That quirk was also noted in the initial observations in October 2005.

Time sure slips by fast, don't it?

So does the the ol' memory...

This is like going through old photo albums.

Back when there was such a thing.
Freeze this moment a little bit longer.
Make each sensation a little bit stronger.
Experience slips away.

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Rubicon
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Re: Strange Flow Charts

Post by Rubicon » Mon Feb 28, 2022 4:01 am

A great example demonstrating "machine chatter":

Image
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Treatedandtired
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Re: Strange Flow Charts

Post by Treatedandtired » Mon Feb 28, 2022 8:39 am

Slept on my right side almost entirely. No pressure annoyances. Woke feeling, perhaps, a bit better. Not as much drama in my flowchart, though some still present.
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Miss Emerita
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Re: Strange Flow Charts

Post by Miss Emerita » Mon Feb 28, 2022 12:54 pm

Glad to hear you had a better night. What puzzles me in the zoomed views is those places where you start to exhale, then quickly inhale a little, then finish exhaling. Can any of the experts interpret this?
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edam
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Re: Strange Flow Charts

Post by edam » Mon Feb 28, 2022 4:28 pm

I have posted about similar waveforms in the past and nobody is sure why these waveforms occur. I dont look at Sleepyhead/ Oscar any more .

Treatedandtired
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Re: Strange Flow Charts

Post by Treatedandtired » Mon Feb 28, 2022 4:47 pm

edam wrote:
Mon Feb 28, 2022 4:28 pm
I have posted about similar waveforms in the past and nobody is sure why these waveforms occur. I dont look at Sleepyhead/ Oscar any more .
Lol. I feel like this is what my doc will say if I take him some printouts of my flowcharts.

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Re: Strange Flow Charts

Post by Rubicon » Mon Feb 28, 2022 5:03 pm

Are you guys following this thread on your cell phones?
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Re: Strange Flow Charts

Post by Rubicon » Mon Feb 28, 2022 5:07 pm

Cause you might be missing detail on these graphs if you're looking at a 1 by 2 inch image.
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Re: Strange Flow Charts

Post by Rubicon » Mon Feb 28, 2022 5:17 pm

Image

These 5 signals are flow, thoracic effort. abdominal effort, pressure and don't worry about the bottom one.

I call this breathing pattern machine chatter or double clutching or 2clutch. You are welcome to call it whatever you want.

In the effort channels, it is clear that there is some additional motion on inspiration. Is the machine overly sensitive and stuttered? Or did the patient slow/halt inspiration midway? IMO for your purposes it's academic, but that's the cause of
machine chatter or double clutching or 2 clutch
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Re: Strange Flow Charts

Post by Rubicon » Mon Feb 28, 2022 5:22 pm

I believe it would be more pronounced in biPAP, active EPR or similar, but if you've got something other than that for show and tell, stick it up here.
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Re: Strange Flow Charts

Post by chunkyfrog » Mon Feb 28, 2022 6:00 pm

That stinking pb waternark is beyond annoying.

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Re: Strange Flow Charts

Post by Rubicon » Mon Feb 28, 2022 7:02 pm

Treatedandtired wrote:
Mon Feb 28, 2022 4:47 pm
I think I found a few clues elsewhere online. Possibly some cardio ballistic feedback and/or upper airway restriction.
Cardioballistic artifact and 2clutch.
Freeze this moment a little bit longer.
Make each sensation a little bit stronger.
Experience slips away.