Can +1 Make Much Difference?

[Breathe Jimbo]

When I switched from an S8 Escape II to my fully data capable S9 Elite yesterday, my sleep doc upped the straight CPAP pressure from 12 to 13. At 12, after the first night or so, I felt I was waking up in the middle of the night and I started waking to go to the bathroom again. Last night, I slept through the night (and cannot remember my dreams), felt I hardly woke up at all, and had an AHI of 0.8 on the display. (When the machine finishes its cooling routine, I will analyze the data on the card with the ResScan software, but that 0.8 looks really good.) Can a 1 cmH2O increase really make that much difference?

[Wulfman]

When I switched from an S8 Escape II to my fully data capable S9 Elite yesterday, my sleep doc upped the straight CPAP pressure from 12 to 13. At 12, after the first night or so, I felt I was waking up in the middle of the night and I started waking to go to the bathroom again. Last night, I slept through the night (and cannot remember my dreams), felt I hardly woke up at all, and had an AHI of 0.8 on the display. (When the machine finishes its cooling routine, I will analyze the data on the card with the ResScan software, but that 0.8 looks really good.) Can a 1 cmH2O increase really make that much difference?

Sure.


Den

[Bookbear]

Yes, it can. So can sleeping position, mood or emotional state before going to bed, room temperature, stress at work, What you ate for dinner, financial worries.... you get the idea. MANY things affect sleep, and it isn't unusual for people using cpap to have varying results, night to night. That's why it's always a good idea to remember that 'one night does not a trend make', and look at at least a week's average AI, HI, and AHI figures before coming to any conclusions or making any changes. It's also wise to listen to your body as well as looking at the numbers. How you feel is as important as the numbers.

Gook luck!

[jlk]

Breathe Jimbo's quote "When the machine finishes its cooling routine, I will analyze the data on the card with the ResScan software" I remove my card immediately after turning the unit off. It is in the cooling mode, but hasn't caused data loss with cooling mode running. Not sure if it can cause anything harmful. jlk

[Breathe Jimbo]

Good to know, jlk.

[echo]

Even 0.5cm can make a difference. A night on 10cm is vastly different than a night on 10.5cm for me. And at 11cm I start getting centrals. A very fine line between therapy and disaster indeed!

What Bookbear said!!

[DreamDiver]

Breathe Jimbo's quote "When the machine finishes its cooling routine, I will analyze the data on the card with the ResScan software" I remove my card immediately after turning the unit off. It is in the cooling mode, but hasn't caused data loss with cooling mode running. Not sure if it can cause anything harmful. jlk

For the S9, the best practice is to wait two minutes after turning off the pressure to remove the card. Reason? Some of the data is held in a buffer that only writes every two minutes. You may miss some data if you pull the card before it has had those two minutes to write the last of it. So some of your numbers will not jive when you look at them and compare with the graphs.

Is it a big deal? Probably not. Most of the time you're awake two minutes before you stop the machine anyway - unless you're in a very deep sleep and you were woken by your alarm clock, so any apneas/hypopneas, etc., for data while awake will not really be useful.

Yes, you can yank the card out immediately after you've turned off the pressure. If you are a data nerd, or you know you woke up from a sound sleep, go potty first, then remove the card. If you really don't care about matching data from one graph to another, yank the card.

I hope this helps.

[Scarlet834]

Even 0.5cm can make a difference. A night on 10cm is vastly different than a night on 10.5cm for me. And at 11cm I start getting centrals. A very fine line between therapy and disaster indeed!

What Bookbear said!!

Ditto - but in my case .5 was a positive change from ineffective therapy to working therapy that changed my life. Glad you've got an attentive doc!

[jlk]

Thanks for the info DreamDiver. I did notice my leak rate not pegged out a time or two when using auto off. Guess it's potty time first! I enjoy looking at my data every day on the puter still. Potty...coffee...sd card. Potty... coffee... sd card. Potty...coffee...sd card. I think I got it. Thanks, jlk

[echo]

Even 0.5cm can make a difference. A night on 10cm is vastly different than a night on 10.5cm for me. And at 11cm I start getting centrals. A very fine line between therapy and disaster indeed!

What Bookbear said!!

Ditto - but in my case .5 was a positive change from ineffective therapy to working therapy that changed my life. Glad you've got an attentive doc!

Nope, my doc said 10cm max! If it wasn't for this forum, I would still be getting ineffective therapy (not to mention the mouth breathing!).