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What happened last night? - Printable Version

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What happened last night? - ISnoreBadly - 08-18-2015

Last night at 1:30 AM I took my mask off and left it off until about 4:30 AM. My wife happened to be awake at that time, she said that I appeared to be sleeping normally (on my back) when I suddenly got up, took the mask off, placed it on the nightstand and went back to sleep on my left side. I, of course, remember none of this.

SleepyHead shows a whole bunch of stuff going on for about half an hour before I took it off. The pressure climbed from 8 to 16 during this time, then dropped a little bit before I took it off. The data from that time is below, any ideas what this is all about?

[Image: ykf22Ot.png]

RE: What happened last night? - justMongo - 08-18-2015

Your system (and likely mask) was in large leak. Hence, the machine ramped up pressure.
Leaks wake most people up.

RE: What happened last night? - ISnoreBadly - 08-18-2015

The pressure climbing during the bunch of events starting a little before 1:00 is expected, correct? And the way I read it once the pressure got to 16 the events mostly stopped so that's a good thing as well?

I guess my mask is leaking at the higher pressure...

RE: What happened last night? - justMongo - 08-18-2015

(08-18-2015, 12:57 PM)ISnoreBadly Wrote: The pressure climbing during the bunch of events starting a little before 1:00 is expected, correct? And the way I read it once the pressure got to 16 the events mostly stopped so that's a good thing as well?

I guess my mask is leaking at the higher pressure...

Agreed. Still need to tame those leaks; plus, in my opinion, 8 cm-H2O is too low a starting pressure. You see your flow rate amplitude declining around 00:58 -- 8 cm-H2O is not enough to splint your airway open. If it were me, I would up the min pressure.

RE: What happened last night? - ISnoreBadly - 08-18-2015

(08-18-2015, 01:27 PM)justMongo Wrote:
(08-18-2015, 12:57 PM)ISnoreBadly Wrote: The pressure climbing during the bunch of events starting a little before 1:00 is expected, correct? And the way I read it once the pressure got to 16 the events mostly stopped so that's a good thing as well?

I guess my mask is leaking at the higher pressure...

Agreed. Still need to tame those leaks; plus, in my opinion, 8 cm-H2O is too low a starting pressure. You see your flow rate amplitude declining around 00:58 -- 8 cm-H2O is not enough to splint your airway open. If it were me, I would up the min pressure.

I was thinking the same thing but wasn't sure what to raise it to... what would you suggest, 9? 10?


RE: What happened last night? - justMongo - 08-18-2015

(08-18-2015, 01:34 PM)ISnoreBadly Wrote:
(08-18-2015, 01:27 PM)justMongo Wrote:
(08-18-2015, 12:57 PM)ISnoreBadly Wrote: The pressure climbing during the bunch of events starting a little before 1:00 is expected, correct? And the way I read it once the pressure got to 16 the events mostly stopped so that's a good thing as well?

I guess my mask is leaking at the higher pressure...

Agreed. Still need to tame those leaks; plus, in my opinion, 8 cm-H2O is too low a starting pressure. You see your flow rate amplitude declining around 00:58 -- 8 cm-H2O is not enough to splint your airway open. If it were me, I would up the min pressure.

I was thinking the same thing but wasn't sure what to raise it to... what would you suggest, 9? 10?

I think those would be good targets. But, would recommend increasing in smaller increments and watching for a few days.
ResMed machines can be dial in 0.2 cm increments. I'm not sure about PR machines. So, perhaps 0.4 to 0.5 increments and watch for a few days.

RE: What happened last night? - ISnoreBadly - 08-18-2015

My machine can go up in .5 increments.

Up until last week I was at 12 cm CPAP, after talking to my doctor about how I felt that I slept better when I tried APAP instead he suggested doing it again but using 8 - 16 cm as the range so I'm not really tied to that minimum number right now.

Tonight I'll bump it up to 9 but will first set the machine to 16 cm CPAP to try to get the mask leaks worked out.

RE: What happened last night? - ISnoreBadly - 08-19-2015

This is getting frustrating.

Last night before bed I set the machine to 16 cm CPAP and adjusted the mask so it wasn't leaking. It took a lot of work and I had to tighten it down quite a bit but eventually got it. I set the machine back to 9 - 16 cm APAP and went to sleep. Within 2 hours the mask was on the nightstand again. I woke up about an hour after that, put it back on but then took it off again within an hour and it stayed off until about 5:30 this morning.

Both times I see that it started leaking air right before I took it off. I'm not sure what else to try here and am thinking about going back to the nasal pillows to see if that makes a difference.

RE: What happened last night? - ISnoreBadly - 08-20-2015

Progress!

I went back to the nasal pillows instead of the FFM and bumped the minimum pressure up to 9. Last night I kept the mask on all night, I only woke up once when I turned on my right side (away from the machine) and the hose pulled on my face. Aside from that I slept through the night and didn't have any issues with leaks. I still have a bunch of OAs and some snoring but it looks better than the only full night I had with the FFM.

[Image: Vz0l41Y.png]

That looks OK?

RE: What happened last night? - PaytonA - 08-20-2015

Looks quite good. Keep on truckin'.