Central Apnea-Is It Normal To Stop Breathing More Than 30 Minutes At a Time?

GearChange wrote: ↑

Sat May 21, 2022 5:05 pm

Do keep enlightening us. Don't stop!

Sure! No problem! I have tons of sage advice!

For instance:

People will use the terms "us" or "we" in an attempt to add credibility to their stupidity. This makes your stupidity simultaneously credible and incredible.

But I'll give "us" a freebie:

Your comment

GearChange wrote: ↑

Sat May 21, 2022 1:32 am

In regards to optimum ASV setting, it is best to set the machine to cover the entire range of pressures . This way the algorithm monitor each breath and adjusts its parameters appropriately, having a wide range to operate in. To limit Max settings is best described as installing a governor on the engine of a performance car to limit its speed.

is so vague as to be absolutely meaningless. That said, in these 2 threads (yours and MRI doc's), both algorithms (ResMed and Respironics) have caused respiration to fly off the tracks because of precisely that approach.

Perhaps you should try being right rather than looking right...

But let's get back to the point that precipitated your diversionary tirade:

Rubicon wrote: ↑

Sat May 21, 2022 2:22 am

GearChange wrote: ↑

Fri May 20, 2022 6:45 pm

however my minute ventilation and Tidal Volume are well within the normal range.

In the highlighted area your tidal volume is 922.81 ml.

On what planet would that be considered to be "well within the normal range"?

So?

What planet?

Meanwhile, given the set parameters, the answer to your original question is simply "yes".

However, in preparing calculations for the explanation, there is an apparent contradiction in your claimed weight.

On 12/22/2021 you stated

GearChange wrote: ↑

Wed Dec 22, 2021 9:37 am

Also, I am 6'2" at 200lb. My Tidal Volume (Vt) therefore should not be above 550 max, yet Resmed is delivering a whopping >1000 ml and that's only because Resmed algo doesn't care.

But now are you claiming

GearChange wrote: ↑

Sat May 21, 2022 10:39 am

Remember its all about averages. My minute ventilation is about 8 l/min average which is normal for a larger guy at 6'2" and 250lb in weight.

So you've gained 50 pounds in 5 months?

You know what, NM, it's more appropriate to use Ideal Body Weight instead.

But tell me--

Why is it that ResMed doesn't care because it's delivering >1000Vt, but Respironics is your best buddy because it's delivering 922 ml.?

GearChange wrote: ↑

Sat May 21, 2022 5:05 pm

By the way Here's my Vt when I breath on my own at over 99%. It is at less than 650.

Not technically accurate either. That's with PS @ 5.5 cmH2O, so it's not entirely "on your own".

Also, we (sorry, I mean "I') will need this later:

Rubicon wrote: ↑

Sun May 22, 2022 2:45 am

GearChange wrote: ↑

Sat May 21, 2022 5:05 pm

Do keep enlightening us. Don't stop!

Sure! No problem! I have tons of sage advice!

Very enlightening (and entertaining), Doctor.
You are correct on all accounts
Don't stop making several separate posts to say what could fit in one small paragraph.
We all love the picture of your Jeep adorning our posts.......over and over.

Rubicon wrote: ↑

Sun May 22, 2022 2:57 am

But I'll give "us" a freebie:

Your comment

GearChange wrote: ↑

Sat May 21, 2022 1:32 am

In regards to optimum ASV setting, it is best to set the machine to cover the entire range of pressures . This way the algorithm monitor each breath and adjusts its parameters appropriately, having a wide range to operate in. To limit Max settings is best described as installing a governor on the engine of a performance car to limit its speed.

is so vague as to be absolutely meaningless. That said, in these 2 threads (yours and MRI doc's), both algorithms (ResMed and Respironics) have caused respiration to fly off the tracks because of precisely that approach.
Perhaps you should try being right rather than looking right...

What's with all the animus and anger in what's meant to be a civil discussion?
Just chill and relax my friend and take a deep breath before hitting the keyboard. It works wonders for longevity.
Both Philips and Resmed recommend the same Titration Protocol to cover the entire range of their ASV pressure settings. This only makes sense.
Are you saying that the manufacturers are incorrect or are you saying that following the manufacturer's Titration Protocol makes me not breath for over 30 minutes at a time?
I am genuinely interested to know (and stay on topic here).
If you are saying that following the manufacturer's titration protocol ( or otherwise setting the ASV parameters to cover the entire range of pressures), can result in patients not breathing for over 30 minutes at a time, then this is an important claim that will need to be investigated with possible legal ramifications against these manufacturers.
Please clarify, hopefully in a calm and civil manner so we can move forward with this.

GearChange wrote: ↑

Sun May 22, 2022 11:16 am

We all love the picture of your Jeep adorning our posts.......over and over.

Actually that's not my Jeep, it coincidently happened to have the same name as me, so I said WTF why not.

The source of my screen name has more to do with the river thing.

So since I'm not particularly attached to that avatar, I shall change it to something more acceptable to you.

Hey, I aim to please!

GearChange wrote: ↑

Sun May 22, 2022 11:41 am

Please clarify, hopefully in a calm and civil manner so we can move forward with this.

GFY.

Is that calm enough?

Rubicon wrote: ↑

Sun May 22, 2022 4:54 pm

GearChange wrote: ↑

Sun May 22, 2022 11:16 am

We all love the picture of your Jeep adorning our posts.......over and over.

So since I'm not particularly attached to that avatar, I shall change it to something more acceptable to you.

Hey, I aim to please!

So nothing that has anything to do with the subject of this thread then.
Got it.

GearChange wrote: ↑

Sun May 22, 2022 5:18 pm

So nothing that has anything to do with the subject of this thread then.

Hey, don't blame me, Skippy. You're the guy who was more interested in showing everybody how clever you think you are.

You want to discuss?

Let's discuss.

Explain why you think a tidal volume of 922 ml is "well within the normal range".

Have you in fact had a 50 pound weight gain in the last 5 months?

Explain the contradictions in

My Tidal Volume (Vt) therefore should not be above 550 max, yet Resmed is delivering a whopping >1000Vt and that's only because Resmed algo doesn't care.

in re: your assessment of appropriate tidal volume and condemnation of the ResMed algorithm which is apparently doing the same thing your Respironics algorithm is.

Upload the most recent PFT.

Upload the Oscar files including the stuff from November-December 2021 to dropbox or similar.

Post

the manufacturer's Titration Protocol

you are following for both machines.

Obviously, the extreme sudden weight gain could be significant.
The OP is clearly miserable; and wants as much company as possible.
I pass . . .

Rubicon wrote: ↑

Mon May 23, 2022 3:58 am

GearChange wrote: ↑

Sun May 22, 2022 5:18 pm

So nothing that has anything to do with the subject of this thread then.

Hey, don't blame me, Skippy. You're the guy who was more interested in showing everybody how clever you think you are.

You want to discuss?

Let's discuss.

Explain why you think a tidal volume of 922 ml is "well within the normal range".

Have you in fact had a 50 pound weight gain in the last 5 months?

Explain the contradictions in

Yes doctor.
Don't stop being off topic. Its helping.

To get back on topic here and as I mentioned in my OP, there are times when my involuntary breathing does not drop to zero %, like last night's session below.
As mentioned before, my Minute Ventilation and my Vt remain also very stable as compared to the times when my involuntary breathing drops to zero and the machine provides full ventilatory functions for long periods in excess of 30 minutes. Naturally my Vt elevates somewhat during full ventilation but that's not the issue here.
Thankfully only Philips ASV algorithm records and displays critical data such as the percentage of "Patient Triggered Breathing", unlike Resmed algo which is very poor in comparison and lacks a lot of critical data recording and presentation ..Again another topic for another post later.
The question is;
"Is it normal" for full cessation of involuntary breathing (Central Apnea) to last for periods in excess of 30 minutes?

Rubicon The Merciful, in His Infinite Compassion, shall allow you to retain your remaining shred of dignity.

When one "Googles":

"Is it normal" for full cessation of involuntary breathing (Central Apnea) to last for periods in excess of 30 minutes?

First hit is:

https://www.medicalnewstoday.com/articles/325359

Why do people laugh in their sleep?

Pretty darn appropriate.

JPB