Pulse Oximeters in CPap machines.

[ozij]

Something I learned ages ago on this forum:
Be very careful with your coffee when reading posts.
You might just splutter it all over your computer!

[robysue1]

Getting back on topic:

Au contraire mon petit croissant,

that's the best laugh I've had in days... still chuckling about. You have forever changed how I think of RobySue.

Me too.

petite_croissant.jpg

I love this. I really love this.

RobySue

[dataq1]

I wanted to reiterate what I said last Friday:

I'm suggesting that home machines could use oximeter data, that it would be helpful to provide a bit more clarity to an event, or even oxygen saturation trending throughout a sleep session. The pros and cons of incorporating desaturation in the event algorithm, should be discussed by the experts to arrive at a beneficial consensus - just as you have raised a potential con.

To expand that, I'm suggesting that cpap oximetery has a potential to be useful as augmented data, and secondarily as a element in classifying hypopneas.

That said, you have made a valid argument that some hypopneas might be mis-characterized if oxygen desaturation were the determinate factor.

Generally, my personal approach (to solving problems) is to try to access as much pertinent data as reasonably possible, and in this regard access to oximetry data would seem to value and be fairly simple to access. Whether that data should or should not be incorporated into the firmware / algorithms is an area that ought be considered......BUT I am certainly not qualified to make that decision.

Again, I've appreciated your input (and learned a few things along the way), it is refreshing to have a civil discussion.

Be well

[Thumper1947]

Here's Nicks take on this subject if anyone is interested. 11/14/22

https://www.youtube.com/watch?v=Q3jCsglrF38&t=22s

[dataq1]

Here's Nicks take on this subject if anyone is interested. 11/14/22

https://www.youtube.com/watch?v=Q3jCsglrF38&t=22s

He seems to be of the same mindset as I .............. more pertient data adds value to analysis.

Thanks for the link

[palerider]

Here's Nicks take on this subject if anyone is interested. 11/14/22

https://www.youtube.com/watch?v=Q3jCsglrF38&t=22s

He's a sensationalist providing clickbait instead of simple (unexciting) facts. He's *NOT* a professional.

That has to be taken into account when weighing how much attention one should pay to his "let's get more views!" "reports".

[Rubicon]

A few things wrong with that performance...

For example, perhaps an understanding of what the myAir score is composed of and how it's weighted (if that hasn't been posted recently):

https://ap.resmed.com/knowledge/how-doe ... e-my-score

I mean, IIWM, I wouldn't be looking at the total, I'd be looking at the components.

If at all.

[Rubicon]

A little sleight of hand, turning on the ramp:

[Rubicon]

Uncle Nicko and Thumper1947, on the list!

[Rubicon]

Now the conundrum of the desaturations:

To point out the errors (or if he's as smart as he says he is, they aren't really "errors"...) of analysis and help him sell crap, or ignore it, and let people...

...actually, there is no real downside to getting oximeters I suppose...

Let's see how much SleepHQ Pro sells for.

I'll bet it's going to be a subscription. The gift that keeps on taking.

[Rubicon]

A little sleight of hand, turning on the ramp:

That said, I'd say most of that's SWJ anyway.

[lynninnj]

A few things wrong with that performance...

For example, perhaps an understanding of what the myAir score is composed of and how it's weighted (if that hasn't been posted recently):

https://ap.resmed.com/knowledge/how-doe ... e-my-score

I mean, IIWM, I wouldn't be looking at the total, I'd be looking at the components.

If at all.

I consider it basically useless and when people tell me their myair score I tell them so and recommend an SD card.

[lynninnj]

A little sleight of hand, turning on the ramp:

Edit: I went back and rewatched the video and saw the settings. I totally agree that dip looks suspicious but didn’t see a break where machine was turned off then on again.

If it’s a sales pitch with intentional faking of the data that’s bad.

Everything else he said about the app tho I agree with and resmed wants you to use it but it’s useless. Sounds like he is creating his own scale by which he “scores” your data.

Personally I don’t need that. I can score it on my own.

[lynninnj]

Rating of Nickos video:

Error of fact or analysis or just based on bad data?

The data looked poorly drawn. I haven’t seen cpaps dipping down to ramp levels like that and it was a poor example. Maybe if enough of us called him on that he would issue a retraction.

One could question the accuracy of the resmed machine flagging data. Who among us has not looked closely at our own data and wondered why something wasn’t marked as an apnea? I know I have (and I can probably find that very day and compare it on oscar because it was a zero ahi day.)

Perhaps a more reasonable question is what is an acceptable margin of error for the machine marking something as an apnea. 1%? 2%? (for example) In a situation like this the data has not lost its value or usefulness.

I agree that o2 data would be helpful especially when weeding out the SWJ.

I consider myair app about as useful as Mr. Red frowny face or Mr. Green smiley. Useless.

[lynninnj]

https://sleephq.com/public/3a22af32-0e9 ... a5466f4010

The machine (not oscar and not sleephq show zero ahi. Around 1am and 120ish am you can see the pressure line jumps. When you zoom in you can see what are probably CAs (judging by oscillations from the machine at those times). They are greater than 10s but were not marked.

There’s probably a few more elsewhere.

We also talk about SWJ which is just the machine doing what it does.

Don’t be confused. I am not even suggesting tangentially that the data should not be used to maximize therapy. (attempts to selectively quote me here will show the dishonesty of the false quoter).

The arbitrary weighting of events leaks etc in resmed created myair app are total shit and basically worthless. Is it simply a tool to show the layperson and less inquisitive person that they are compliant? OK sure.

BUT if it keeps people engaged in their care and guiding them to focus where changes need to be made ie leaks then great. But much beyond that I see them as basically useless.

jmho