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Sierra

Sierra
Joined Jul 2018
Bio

CPAP: AirSense 10 AutoSet

Set to CPAP Fixed Mode

Pressure 11 cm

Ramp: Auto

Ramp Start: 9 cm

EPR: 2, Full Time

Mask: ResMed AirFit P10 Nasal Pillow

Canada

Sierra
Joined Jul 2018
Bio

CPAP: AirSense 10 AutoSet

Set to CPAP Fixed Mode

Pressure 11 cm

Ramp: Auto

Ramp Start: 9 cm

EPR: 2, Full Time

Mask: ResMed AirFit P10 Nasal Pillow

Canada

I am not all that familiar with DreamMapper, but I think it is just giving you summary data. SleepyHead does that too, but the real value is the minute by minute graphical plots of a number of variables during the whole sleep session. These are displayed with the Daily Detail chart. See this example for a Dreamstation, which is actually a BiPAP machine, but an Auto CPAP will be quite similar. Notice the red pressure trace and see how the DreamStation keep peaking it up during the night and back down again. The results this individual is getting are quite good, but they potentially could be improved with some pressure adjustments to reduce the pressure variation during the night. It also looks like hypopnea events are primarily occurring when the pressure is lower. In any case this is the kind of detail you can see with SleepyHead. It can be very helpful in determining what may be causing your arousal events, and what adjustments could be made to reduce them.

DreamStation SleepyHead Screen Shot

Your pressure range of 5 cm to 20 cm is very wide, but not unusual for an initial guess for setup. Most will find that 5 cm is too low and when you start there each night, some feel short of air, or a claustraphobic feeling. More often 7-9 cm is a better start point. And narrowing up the minimum and maximum pressures can make the experience more comfortable, and at the same time improve AHI.

SleepyHead will run on Windows or Apple, and all you need to do is remove your SD card from you machine and plug it into a card reader to get the data into SleepyHead. Not all that hard. Your sleep provider or doctor should have software from Phillips similar to this, and can view the data as well. However, what they can do, and what they actually do are often different things...

It does sound like you may have a defective machine. Some thoughts on the issues:

  1. You mentioned that prior to the incident the machine stopped shutting off when you took your nasal pillow mask off. In the Clinical Guide troubleshooting section (see page 32) they mention that if you use a nasal pillow mask and your set pressure is less than 7 cm the automatic shutoff will not work. This would seem to suggest for some time you may be getting less than 7 cm pressure. Do you know if it should be higher than that, or if it has been changed?
  2. Do you use SleepyHead to monitor what the machine is doing? If so you could look back through the history which should all be on the SD card to see if the machine was slowly failing, or if it was an intermittent thing.
  3. A few weeks ago we went camping and tried out our new 12 volt to 24 volt power adapters. Mine which is on an A10 worked fine for all nights. On my wife's S9 machine it initially worked, but then one night it started to act up. In her case it would shut down and then start up again in ramp mode. When I looked at what happened in SleepyHead the next day, I think it shut off and restarted about 15 times. I am amazed that she got any sleep at all. She was going fairly long periods with the machine not running at all. At about 5:00 in the morning she changed to the normal AC adapter as we did have AC on that night. It then worked fine. After some troubleshooting I figured out that the plug on the adapter where it goes into the S9 must have had a broken wire or solder joint to the connection inside the molded plug. If you wiggled it just the right way the power would go off and on at will. I did a screen shot of the SleepyHead chart and sent it to the vendor that I bought the adapter in the spring. They immediately sent me a new one. The warranty on the adapter and the machine is 2 years. That said it sounds like your machine is not shutting right off, or if it is, then it may be immediately restarting without you knowing. I would try wigging the plugs and wires to see if you can make it shut off and on.

In any case I would look at the data on SleepyHead before giving up on it. It might just be the adapter.