What do you guys think?

[Reznik]

I'm trying my hand at posting charts for the first time, and so I hope this works.

I'm going to post a chart that shows a typical hypopnea that I experience.  Can anyone look at this and tell me what's going on here, particularly in the two breaths **before** the hypopnea actually occurs?

   

Also, sometimes I get a group of apneas.  When I zoom out, it kinds looks like CSR to me.  What do you guys think?

   

[Walla Walla]

It's called a sigh. It's a normal for it to happen during the night. Just a person talking a deep breath and letting it out. It leads to suppressed breaths for few seconds. It's not a hypopnea but the machine counts them like one.

[Reznik]

It's called a sigh. It's a normal for it to happen during the night. Just a person talking a deep breath and letting it out. It leads to suppressed breaths for few seconds. It's not a hypopnea but the machine counts them like one.

Walla Walla,

Thank you very much for responding.  

I find that the many of my detected events look just like this one.  Are you saying that, when computing my AHI, I should disregard them?  In other words, they are not apneas, and a higher pressure will do nothing to resolve them?

Interestingly, if I'm using a machine with Central Apnea Detection turned on, it often fails to see the tiny breaths, and counts it as an **apnea**.  If I'm in autoset mode, the pressure will increase as well.

Do you have any thoughts on the second graph that I posted?

[Reznik]

Here's another image showing what looks to my uninformed eye like periodic breathing.  Again, I'd love any thoughts from people with more experience than I...

   

[Walla Walla]

It looks like it's obstructive flow limitation. The first chart had unknown events but I think they were obstructive. Same with the second chart but they're not counted as events because they don't last long enough. Well that's my guess until Sleeprider says I'm wrong.