Most Unusual Night

[richb]

Does this machine have a backup rate set?
RichB

Good question: what is the backup rate and what does it do? I don't know how to answer this question.

Walt

A backup rate is a fixed number of breath that a machine automatically delivers if you stop breathing. I looked up the specs on your machine and see that it does not have a back up rate available. Sorry for adding confusion.

RichB

[wolson]

Does this machine have a backup rate set?
RichB

Good question: what is the backup rate and what does it do? I don't know how to answer this question.

Walt

A backup rate is a fixed number of breath that a machine automatically delivers if you stop breathing. I looked up the specs on your machine and see that it does not have a back up rate available. Sorry for adding confusion.

RichB

OK. No problem

Walt

[PoolQ]

Well it's nice to come back to the forum and see that no one slapped me for confusing pressure and flowrate, they kind of be different. Must have needed that nap.

[wolson]

As for COPD. Both my Doctor and my pulmonologist said that I clearly do not have COPD before the testing. After the testing they said I have unspecified COPD, they have no idea what it really is but "may" be COPD. They prescribed me the first level of COPD meds and bingo I could now sleep. Is it COPD? I have no idea and neither do they really. Am I just way more sensitive than most? Could be. Whatever the case, the meds are working and I am comfortable enough to sleep really well.

Edited for reality

Basically the same here... the meds work somewhat even if I don't have COPD by the GOLD rules.

But there still something seriously wrong as on exertion, I get winded extremely fast and can't seem to change that with conditioning. Also my endurance is a little more than a mile of walking and I haven't been able to change that either! I used to run marathons and ultramarathons. I used to climb big mountains such as Denali.

Now, I have problems climbing a few hundred feet. Just breathing, no chest pains or any indication of heart problems. But that can't be ruled out just yet. Perhaps it is cardiac/vasculary related... I will know more by the end of this week.

[Sleeprider]

Read page 7 of 28, "Detection accuracy of obstructed airway apnea apneas (OA) and clear airway apneas (CA) by proprietary algorithm in positive airway pressure (PAP) devices. https://www.usa.philips.com/b-dam/b2bhc/...0FINAL.pdf

The pressure pulse used to detect the type of apnea is visible as a flow fluctuation in CA.

[eseedhouse]

Well it's nice to come back to the forum and see that no one slapped me for confusing pressure and flowrate, they kind of be different.

I'm sorry, you did not pay for the full argument.

[PoolQ]

Gotta love this forum, there are some that I would have been ripped a new one already.

from the Mayo Clinic
•Shortness of breath, especially during physical activities
•Wheezing
•Chest tightness
•Having to clear your throat first thing in the morning, due to excess mucus in your lungs
•A chronic cough that produces sputum that may be clear, white, yellow or greenish
•Blueness of the lips or fingernail beds (cyanosis)
•Frequent respiratory infections
•Lack of energy
•Unintended weight loss (in later stages)

I have:
Chest tightness-but only when I lay down
Lack of energy- I would call it low energy. For my cardio rehab I would ride a stationary bike for 30 minutes, pushing it to keep my heart rate up, and call it done in 30 minutes because I was out of energy. I thought this was because of type II diabetes and running out of glucose but perhaps it was the COPD causing my O2 to drop.

Anyway those are the only two symptoms I have and thus unspecified COPD, they don't have a clue.

[PaytonA]

Read page 7 of 28, "Detection accuracy of obstructed airway apnea apneas (OA) and clear airway apneas (CA) by proprietary algorithm in positive airway pressure (PAP) devices. https://www.usa.philips.com/b-dam/b2bhc/...0FINAL.pdf

The pressure pulse used to detect the type of apnea is visible as a flow fluctuation in CA.

Thanks Sleeprider.

The flow change from the pressure pulse really shows up nicely on page 25 as well as depictions of why it may not show up in the flow data.

Best regards,

PaytonA

[Ghost1958]

Your machine cannot treat CAs but it can detect them using a pressure pulse.
A hypop is a flow reduction . The machine has no need to pulse one to know its not a CA.

[wolson]

Read page 7 of 28, "Detection accuracy of obstructed airway apnea apneas (OA) and clear airway apneas (CA) by proprietary algorithm in positive airway pressure (PAP) devices. https://www.usa.philips.com/b-dam/b2bhc/...0FINAL.pdf

The pressure pulse used to detect the type of apnea is visible as a flow fluctuation in CA.

Thank you: that answers the question when I do see that pulse and rebound. I had not seen that manual and probably neither had my pulmonologist. Thus that small pulse is machine generated, not subject generated. I also tested it last night but I haven't yet looked at the data but I clearly heard a quick change in the pitch of the machine at the 10 second mark.

However, it does not answer the question of CA scoring where there is no pulse and reboubd. This can not be the only part of the algorithm that detects and scores CA's.

There are some criteria that probably needs more exploration including the 40% and 80% reductions in flow from the baseline level.

Walt