Search found 945 matches

by Morbius
Sat Feb 26, 2022 3:45 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

Pugsy, Morbius, any other knowledgeable member: Relative to the linked NIH table below: Please, does any one of you have additional specific information about Resmed S10 Autoset detections of and responses to flow limitation at all levels? As a Resmed-only user, it was good to see Pugsy and Morbius...
by Morbius
Fri Feb 25, 2022 1:02 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

In theory anyway...a person could have a boatload of FLs and not know it and might be having some issues related to those FLs and in fixed mode....no clue as to what might be causing the issues if they were FL related. Some stuff might be picked up by RERA flags, but perhaps a user with a record th...
by Morbius
Fri Feb 25, 2022 10:59 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

In fixed mode the Respironics machines don't record FLs at all. Doesn't mean they didn't happen....just means they didn't get recorded or flagged. Don't know why Respironics decided that FLs weren't worth reporting in fixed mode unless maybe since in fixed mode the pressure can't change so the FLs ...
by Morbius
Fri Feb 25, 2022 3:52 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

Morbius wrote:
Fri Feb 25, 2022 3:50 am
Or maybe "selectively adjusting".
Cause just because it sees a change in a FL criterion it doesn't mean it's going to necessarily send the pressure through the roof.
by Morbius
Fri Feb 25, 2022 3:50 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

Morbius wrote:
Fri Feb 25, 2022 3:45 am
in continuously adjusting (although I would say "monitoring") pressures.
Or maybe "selectively adjusting".
by Morbius
Fri Feb 25, 2022 3:45 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

2) As Resmed considers the characterization of the flowrate-time curve to be vital in continuously adjusting pressures, why would Respironics (seemingly) ignore that characterization. Well I must apologize, I thought I covered every point in this discussion. Sorry I missed this. TTBOMK Respironics ...
by Morbius
Thu Feb 24, 2022 8:12 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

So let me ask you something.

What do you intend to do with this massive influx of new information?

Bring it back to the other place to impress your little friends?

Those pesky inquiring minds again!
by Morbius
Thu Feb 24, 2022 7:45 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

AmSleepnBetta wrote:
Thu Feb 24, 2022 6:31 am
Yes, I think it is "Starling" but ...
Probably still don't.
by Morbius
Thu Feb 24, 2022 7:37 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

Oh, by the way, I had read the report and shared (last September?) those two excellent "among and within" graphs of waves you posted. I had seen the other batch of curves too, but thanks for thinking of me. Yeah but when you posted Real NED is when an increase in muscular efforts to draw an inspira...
by Morbius
Thu Feb 24, 2022 7:23 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

Cause if I understand you correctly (although reread above) in the area where you identify conflict duty cycle actually remains constant, and all you got is a guy breathing slowly and deeply, as you might find in SWS. Yes, for many with UARS and such, "breathing slowly and deeply between arousals"....
by Morbius
Thu Feb 24, 2022 4:35 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

And the FL channel is probably wrong too. Although since it's just a summary of a bunch of things I guess that's academic. "Something significant is happening there" is all you need to know.
by Morbius
Thu Feb 24, 2022 4:24 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

So returning to the original image: https://i.imgur.com/iH6EJ9u.jpg looking at the flow waveform, respiratory rate does not appear to change. It gets pretty scoopy, but that's it. However, respiratory rate doubles, indicating that RM is counting the scoops as 2 different breaths (not everything can ...
by Morbius
Thu Feb 24, 2022 3:48 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

Morbius wrote:
Wed Feb 23, 2022 11:33 am
I mean, I can make his case better than he can!

Hmmm.

I can make his case better than he can...
So if I claim that virtually everything ASB says is suspect;

and I can do that even better;

then logic dictates that my conclusions are even worse!

A syllogism that needs further investigation...
by Morbius
Wed Feb 23, 2022 11:33 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

Contrary to opinions expressed very early in this thread ... Morbius you are verbalizing an inverse relationship between flow limitations and tidal volume. - And I have no argument with that. One opinion, and IMO that misunderstanding has been corrected, so yeah let's move on. AAMOF IDK why ASB is ...
by Morbius
Wed Feb 23, 2022 7:41 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Tidal volume and Flow limitations
Replies: 193
Views: 52005

Re: Tidal volume and Flow limitations

And if that's not clear enough, I will combine those 2 phenomena as:

During the progression of airway obstruction, tidal volume is initially preserved by increasing duty cycle. As FLs progress in severity through hypopnea and eventually to apnea, Vt eventually falls to -0-.