2-3am AHI peaks?

ChicagoGranny · Post by **ChicagoGranny** » Sat Sep 22, 2018 2:46 pm

2324Ace wrote: ↑
Sat Sep 22, 2018 2:28 pm
all i see here is that flow rate dropped unusually but i had less events and pressure seemed constant.

You appear to be sleeping and breathing normally in that section. You want more of that.

In the section to the left, you are having events, breathing erratically and probably having some arousals. You want less of that.

ChicagoGranny · Post by **ChicagoGranny** » Sat Sep 22, 2018 2:49 pm

palerider wrote: ↑
Sat Sep 22, 2018 1:57 pm
"flow rate" is the name of the graph.

"Flow Rate" is the name of the legend for the y-axis.

palerider · Post by **palerider** » Sat Sep 22, 2018 2:50 pm

2324Ace wrote: ↑
Sat Sep 22, 2018 2:28 pm
. tidal volume also looked flat.........

but lower than in other spots where you were breathing deeper.

2324Ace · Post by **2324Ace** » Mon Oct 01, 2018 4:57 am

so what does it mean when my "shark fins" turn upside down? stealth mode? dead shark?

palerider · Post by **palerider** » Mon Oct 01, 2018 10:55 am

It means that there were brief periods where your sleep wasn't terrible, and the machine started dropping the pressure, only to have it go back up because you had another event.

2324Ace · Post by **2324Ace** » Mon Oct 01, 2018 7:04 pm

Should I be worried that pressure was pinned at 20 for so long?

palerider · Post by **palerider** » Mon Oct 01, 2018 7:13 pm

2324Ace wrote: ↑
Mon Oct 01, 2018 7:04 pm
Should I be worried that pressure was pinned at 20 for so long?

Well, only if you want to get to a lower AHI... you need more pressure to control those obstructive events.

ChicagoGranny · Post by **ChicagoGranny** » Tue Oct 02, 2018 6:15 am

2324Ace wrote: ↑
Mon Oct 01, 2018 7:04 pm
Should I be worried that pressure was pinned at 20 for so long?

Many of use have been able to reduce our pressure requirements by wearing a cervical collar or similar anti-snoring collar. My pressure was hitting 18 to 20. Once I started wearing a collar, the pressure requirement are 12 - 14. A discussion of various collars is here - viewtopic/t172782/Success-with-Dr-Dakot ... evice.html

2324Ace · Post by **2324Ace** » Wed Oct 17, 2018 7:49 am

Firstly thanks to all for their advice and input.

Its been a couple months now on CPAP (again) and I would say this my AHI has fluctuated between high 2 and as high as mid 6. But I can say it feels largely random. So very hard to isolate all the variables in my sleep (though the 6 was after a night of drinks)

Even tried the Dakota neck torture device and it didn't seem to work and for whatever reason made my aerophagia go through the roof.

But my latest concern is that my machine settings are not right. for example, last night:

: screenshot-20181017-093148.png (121.19 KiB) Viewed 571 times

And closer look it seems the pressure doesnt adjust at all:

: screenshot-20181017-094355.png (109.09 KiB) Viewed 571 times

Appreciate any thoughts on settings or otherwise. My flex setting is on "2" - I did try putting it at 3 one night and the aerophagia was worse......

Pugsy · Post by **Pugsy** » Wed Oct 17, 2018 8:14 am

The events you zoomed in on...not real...post arousal events...semi awake or awake breathing irregularities getting flagged by mistake.
The machine won't respond unless other signs of obstruction are going on like flow limitations or snores or real OAs/hyponeas within a certain period of time.

See this page...read and watch all the videos
http://freecpapadvice.com/sleepyhead-free-software

Even if that CA had been real...the machine won't/can't do anything about centrals.
Even if those OAs had been real the machine doesn't increase the pressure at all during the OA/hyponea but instead it waits and re evaluates things to see how it could better prevent those apneas from happening again. The machine absolutely will NOT increase the pressure during an event. It simply doesn't work that way.

Jas_williams · Post by **Jas_williams** » Wed Oct 17, 2018 11:43 am

As pugsy said that looks to me post arousal roll over or something. But your machine did respond you need to remember an APAP does not increase pressure to treat an event but increases pressure to prevent the next event happpening. You can see from your zoomed graph that the machine increased pressure shortly after the Second OA as the pressure line rises at about 01:16:00 ish, Your machine will do nothing to treat a CA.

2-3am AHI peaks?

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