pressure range questions

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
lynninnj
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Re: pressure range questions

Post by lynninnj » Fri Aug 12, 2022 11:13 am

Dog Slobber wrote:
Fri Aug 12, 2022 10:32 am
lynninnj wrote:
Fri Aug 12, 2022 10:25 am
Dog Slobber wrote:
Fri Aug 12, 2022 10:15 am
lynninnj wrote:
Fri Aug 12, 2022 9:56 am
I will look at it more closely when I get time but want to try to figure out which are real events and which are me lying awake
Some rules of thumb I use to help me identify "real" vs awake apneas:
  • Event(s) near the beginning or end of a sleep session should be treated as suspect.
  • Fake events can be flagged as OAs, CAs, or Hs.
  • Flow rate volatility, prior to an event is probably fake.
  • Start to learn your own flow rate while awake vs asleep. You can do this by looking at your flow rate at times when you know you're awake. Look at it at various zooms levels.
Thank you!

I saw a few "events" that didn't seem like they were quite right, like I might have been awake. Then I saw some that were def me asleep.

Is it typical to grab a deep breath after an apnea event? I am kinda surprised that some suggest I went right back to peaceful gentle breathing but I guess that is kinda what the CPAP is supposed to do?
For an Obstructive Apnea, yes; for a Central Apnea, no. Stop breathing for a bit, then when you restart your first breath will be deeper than usual

But, that doesn't mean that you will always have a recovery breath after an obstructive event.
Hmmm ok.....

So the first hypopnea doesnt really look like a hypopnea based on continued breathing rhythm and pressure.
The second and third events both look like OAs?
And the next event is a CA but these OAs and CA both have a large breath right before them so I just don't know.

Either way I appreciate the help as I learn to read the data.

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palerider
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Re: pressure range questions

Post by palerider » Fri Aug 12, 2022 11:16 am

lynninnj wrote:
Fri Aug 12, 2022 5:51 am
palerider wrote:
Thu Aug 11, 2022 10:50 pm
lynninnj wrote:
Thu Aug 11, 2022 3:49 pm
I am fairly tech savvy even tho i am not ready to build a battery that could zap my precious machine.
There is no way that a battery could 'zap' your 'precious machine.
I hear you saying you can plug the machine into anything even an improperly assembled battery backup and guarantee it won’t get damaged. Am I reading that right?

Because I’m not quite ready to try to assemble battery back up.

But I’m not intimidated even the slightest to take the SD card out and look at it like someone was suggesting.

btw zap was a figure of speech but im pretty sure you absolutely could damage your machine if you are like me and don’t know what you’re doing
The machine requires a Resmed DC-DC converter, which will take anything from 12 to 26 or so volts and properly power the machine, as designed.
lynninnj wrote:
Fri Aug 12, 2022 5:51 am
btw zap was a figure of speech but im pretty sure you absolutely could damage your machine if you are like me and don’t know what you’re doing
You're entitled to being pretty sure about whatever you want to be, no matter how incorrect you happen to be.

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Re: pressure range questions

Post by lynninnj » Fri Aug 12, 2022 11:25 am

palerider wrote:
Fri Aug 12, 2022 11:16 am
lynninnj wrote:
Fri Aug 12, 2022 5:51 am
palerider wrote:
Thu Aug 11, 2022 10:50 pm
lynninnj wrote:
Thu Aug 11, 2022 3:49 pm
I am fairly tech savvy even tho i am not ready to build a battery that could zap my precious machine.
There is no way that a battery could 'zap' your 'precious machine.
I hear you saying you can plug the machine into anything even an improperly assembled battery backup and guarantee it won’t get damaged. Am I reading that right?

Because I’m not quite ready to try to assemble battery back up.

But I’m not intimidated even the slightest to take the SD card out and look at it like someone was suggesting.

btw zap was a figure of speech but im pretty sure you absolutely could damage your machine if you are like me and don’t know what you’re doing
The machine requires a Resmed DC-DC converter, which will take anything from 12 to 26 or so volts and properly power the machine, as designed.
lynninnj wrote:
Fri Aug 12, 2022 5:51 am
btw zap was a figure of speech but im pretty sure you absolutely could damage your machine if you are like me and don’t know what you’re doing
You're entitled to being pretty sure about whatever you want to be, no matter how incorrect you happen to be.
In light of the fact that they haven't manufactured a dc/dc converter for my machine yet, I feel pretty glad to be sure. You can be sure too, since they haven't invented one yet.

Listen, I am not here to have a pissing contest with you.

It was suggested I just "get over it" when there was nothing to get over-I have no qualms about looking at my data and trying to learn. I didn't have an SD card in the machine but thought I did. Laziness on my part.

But consider this-this machine is what I view as a lifeline right now. This machine has proved to be providing me with a health benefit of NOT having to go on a chemo medication right now. (stuff I won't get into but I think anyone in my position would be looking at it the same way.) So long as this machine continues to keep me from dying from afib or in my sleep, it is my lifeline. I just lost my mom to a heart attack and my dad many years ago to one and I don't want to wind up that way myself.

So if I don't feel comfy halfassed rigging up something I dont understand (the electronics part of it) and potentially shortening or ending the life of my machine because I don't understand the battery backup components, that should be understandable and respected. It doesn't require snark, nor does it require corrective word games because the word zap somehow doesn't fit in your mind.

That said, when they finally DO make a dc-dc cord for the AS11, I will jump on board to buy one and hopefully by then know which backup battery will best support my needs. Because quite frankly, I don't ever want to be without it again. EVER. It means too much to me right now.

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Pugsy
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Re: pressure range questions

Post by Pugsy » Fri Aug 12, 2022 11:39 am

My last reply from the laptop.

Watch the videos here.

http://freecpapadvice.com/sleepyhead-free-software

Gotta go. Laptop got broken last night and it is being sent off to be fixed.

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lynninnj
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Re: pressure range questions

Post by lynninnj » Fri Aug 12, 2022 11:46 am

Pugsy wrote:
Fri Aug 12, 2022 11:39 am
My last reply from the laptop.

Watch the videos here.

http://freecpapadvice.com/sleepyhead-free-software

Gotta go. Laptop got broken last night and it is being sent off to be fixed.
Thanks.

I have watched that video three times already and still have questions. I will watch it again.

It is very annoying that the clicks are so loud and you have to turn it up on top of that in order to hear him. Will sit through it again.

Hopefully you will have your laptop back by the time you get back from vaca. Have a good trip and thanks again.

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Dog Slobber
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Re: pressure range questions

Post by Dog Slobber » Fri Aug 12, 2022 11:58 am

lynninnj wrote:
Fri Aug 12, 2022 11:13 am
So the first hypopnea doesnt really look like a hypopnea based on continued breathing rhythm and pressure.
What are you drawing that conclusion on? I never said anything about determining if something was a Hypopnea based on the breathing pattern that follows it.

The second and third events both look like OAs?
The second and third events don't look real, as in, you were likely awake. Prior to both, there is volatility. One doesn't prepare for an obstructive event by taking a large breath before it.

And the next event is a CA but these OAs and CA both have a large breath right before them so I just don't know.
I'll repeat:
Dog Slobber wrote:
Fri Aug 12, 2022 10:15 am
Flow rate volatility, prior to an event is probably fake.

lynninnj
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Re: pressure range questions

Post by lynninnj » Fri Aug 12, 2022 12:35 pm

Dog Slobber wrote:
Fri Aug 12, 2022 11:58 am
lynninnj wrote:
Fri Aug 12, 2022 11:13 am
So the first hypopnea doesnt really look like a hypopnea based on continued breathing rhythm and pressure.
What are you drawing that conclusion on? I never said anything about determining if something was a Hypopnea based on the breathing pattern that follows it.

The second and third events both look like OAs?
The second and third events don't look real, as in, you were likely awake. Prior to both, there is volatility. One doesn't prepare for an obstructive event by taking a large breath before it.

And the next event is a CA but these OAs and CA both have a large breath right before them so I just don't know.
I'll repeat:
Dog Slobber wrote:
Fri Aug 12, 2022 10:15 am
Flow rate volatility, prior to an event is probably fake.
I have watched that sleepyhead video 3.5 times so far. The breathing pattern looks consistant though slightly smaller. What are you trying to say? (I didn't suggest you personally said that btw, I was saying that is what i gleaned from sleepyhead videos.)

And if what you say is true then the only real apnea I had all night was the one at 5:52 am? (that looked like happy saw edge right up to the apnea event.)

Ugh, this stuff is hard. I want to learn so badly! I really keep looking at the videos to learn but he skips through and says no, not real....no, not real so much that its hard to keep up.

Thanks for your help.

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palerider
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Re: pressure range questions

Post by palerider » Fri Aug 12, 2022 4:23 pm

lynninnj wrote:
Fri Aug 12, 2022 11:25 am
In light of the fact that they haven't manufactured a dc/dc converter for my machine yet,
Then this *entire conversation* (about power) is academic, unless you want to build your own converter, as others have done, which still won't harm the unit, as long as it's 24 volts, and the unit accepts it (due to having the right voltage on the supply pin.).

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lynninnj
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Re: pressure range questions

Post by lynninnj » Fri Aug 12, 2022 6:29 pm

palerider wrote:
Fri Aug 12, 2022 4:23 pm
lynninnj wrote:
Fri Aug 12, 2022 11:25 am
In light of the fact that they haven't manufactured a dc/dc converter for my machine yet,
Then this *entire conversation* (about power) is academic, unless you want to build your own converter, as others have done, which still won't harm the unit, as long as it's 24 volts, and the unit accepts it (due to having the right voltage on the supply pin.).
I already made the decision not to tryto build my own. jftr I respect your understanding on the subject. My own leaves much to be desired.

this topic is mainly the hope to determine which of the 10-11 events were real events and which could’ve been me scratching my nose.

Also I see the pressure requirements may be more suitable now as well.

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Pugsy
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Re: pressure range questions

Post by Pugsy » Fri Aug 12, 2022 8:47 pm

If you irregular breathing either immediately prior to the flagged event then the flagged event is a false positive or arousal breathing related..
You weren’t sound asleep.
You probably won’t remember most arousals unless you were awake long enough to form a memory.

A big gulp of air just prior to the flag could be something as simple as you turn over in bed and take a gulp of air then hold your breath.
We do it often and don’t even realize it.

I am stuck at the airport. Flight delayed because of bad weather. Ugh.

It’s going to take you a while to learn flow rate breaths, Lots of experience is needed. Be patient.
I will try to scroll through the flow rate later but earlier today I took a brief look and mainly what I saw was arousal related.
The first hyponea was probably real. You don’t have enough events to worry about though.

I have done several posts with educational examples recently. Maybe search my posts for wording I commonly use like …..not asleep….false positives….
Can’t think of more right.
Screaming toddler……geezzzz. And on my flight too.
Gonna be a long night.

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Brad S
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Re: pressure range questions

Post by Brad S » Sat Aug 13, 2022 7:50 am

lynninnj wrote:
Fri Aug 12, 2022 11:46 am
I have watched that video three times already and still have questions. I will watch it again.
It is very annoying that the clicks are so loud and you have to turn it up on top of that in order to hear him. Will sit through it again.
100% agree with you. This is so hard to understand and the clicks don't make it any easier.

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lynninnj
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Re: pressure range questions

Post by lynninnj » Sun Aug 14, 2022 5:58 pm

Brad S wrote:
Sat Aug 13, 2022 7:50 am
lynninnj wrote:
Fri Aug 12, 2022 11:46 am
I have watched that video three times already and still have questions. I will watch it again.
It is very annoying that the clicks are so loud and you have to turn it up on top of that in order to hear him. Will sit through it again.
100% agree with you. This is so hard to understand and the clicks don't make it any easier.
I found a resmed video on apnea as well but no illumination.

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Brad S
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Re: pressure range questions

Post by Brad S » Sun Aug 14, 2022 6:10 pm

[quote=lynninnj post_id=1418127 time=1660521521
I found a resmed video on apnea as well but no illumination.
[/quote]

I think I may have found a good video from the guys that do the SleepHQ website.
I am only half way through it and I will finish it and send you the link in the morning if it is as good as I think it is.

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Re: pressure range questions

Post by Brad S » Mon Aug 15, 2022 10:25 am

lynninnj wrote:
Sun Aug 14, 2022 5:58 pm

I found a resmed video on apnea as well but no illumination.
This guy explains a lot of this stuff really well and it is helping me to start understanding the OSCAR info even though he is talking about SleepHQ which I have both.
The second video about understanding the relationship of blood oxygen and AHI and how the lower AHI is not always better if the O2 isn't right is really helpful.
https://www.youtube.com/watch?v=xfeYfoy-BS8
https://www.youtube.com/watch?v=Ebg9-5lNMk4
Lots of good info here. Just learned about the climate control which I needed educating on.
Also they are working on incorporating the ring o2 sensor to work with SleepHQ

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Re: pressure range questions

Post by lynninnj » Wed Aug 17, 2022 8:29 am

So today I again do not have on SD card how many AHI, though the front of the machine says something like 2. Myair app says 2.1.

But when I put the disk in for sleep HQ it shows the sleeping patterns for the last two nights with no AHIs marked out.

https://sleephq.com/public/181d4460-50b ... 184b661f3c

Oscar also shows no AHI listed.

I can't imagine what is going on here with this but I must say it is annoying at the very least!

Time to dig out another SD card and see if that is the issue.

Any ideas are welcomed.

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