Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

Long period with no data
#1
Any idea what happened here? A fairly long period where it wasn't recording data. Thinking-about




Attached Files Thumbnail(s)
   
Post Reply Post Reply
#2
I can't explain the dropout in the flow and events, but there was pressure data. I've never see this.

On another note, I don't think your 4.0 minimum pressure serves you well. From what I see a minimum of 6.5 is a little closer to your needs. Your leak rate steadily increased leading up to the data gap, and I thought that might have something to do with the data loss, but probably not. It looks like a mouth leak, but if not, switch to the next size larger nasal pillow.
Post Reply Post Reply
#3
Thanks. I'm still learning how to adjust the machine. Last night, actually, was the first night where I changed any settings. I began the night with min 6.0 and max 16.0. I fell asleep, but woke up again with it blowing very hard. I lowered the minimum back to 4 and that seemed to work. I've never seen data like last night's -- not only the long gap, but also the abrupt climb around 1:15 (I guess 1:20 was when I turned it off and reset the minimum).

Why does the leak rate show an upper and a lower line?

It looks like I had one really good section though, from 12:20 to 1:00. No events, not even snoring. Except for flow limitations. Are those anything to be concerned about?
Post Reply Post Reply


#4
(02-12-2016, 11:06 AM)Winterfrost Wrote: Why does the leak rate show an upper and a lower line?

It looks like I had one really good section though, from 12:20 to 1:00. No events, not even snoring. Except for flow limitations. Are those anything to be concerned about?

On a Respironics machine, the total leak rate is the top line, and includes intentional mask leak and air leaks from the system. The bottom line is the net air leakage after accounting for intentional mask venting. In a leak-free night, the bottom leak line will stay near the bottom of the graph. When you see it rise and stay elevated, that is leakage beyond what would be desirable.

You might want to cap the maximum pressure until you get used to the CPAP. From what I see, your sleep is disrupted when pressure exceeds 12 cm. I think you may need to allow pressure to go higher eventually, but for now, I'd set the maximum at 12 and accept a few more events in lieu of the discomfort and disruption of higher pressure. I would move the minimum pressure back up to 6.0.
Post Reply Post Reply
#5
What was your AHI?

The APAP responds to FL and snores, and will raise pressure in anticipation of an apnea event.
You will not be able to control the FL and snores by keeping your start pressure at 4.

Raise the start pressure to 7 and lower the max pressure down to 12 or 13. You can also use the AFlex setting to help with breathing out toward pressure. I would set it to 2.
Post Reply Post Reply
#6
(02-12-2016, 11:22 AM)Sleeprider Wrote: You might want to cap the maximum pressure until you get used to the CPAP. From what I see, your sleep is disrupted when pressure exceeds 12 cm. I think you may need to allow pressure to go higher eventually, but for now, I'd set the maximum at 12 and accept a few more events in lieu of the discomfort and disruption of higher pressure. I would move the minimum pressure back up to 6.0.

Thanks! Makes sense. On other nights when pressure got up around 15 or 16, I'd wake, either from mask leaks (air blowing in eyes), noise, or whatever. I'd also start having CA events. I've noticed, though, that it's the snoring that seems to bump up the pressure. It seems to be mostly the snoring that's triggering the increases in pressure.
(02-12-2016, 11:41 AM)OpalRose Wrote: What was your AHI?

The APAP responds to FL and snores, and will raise pressure in anticipation of an apnea event.
You will not be able to control the FL and snores by keeping your start pressure at 4.

Raise the start pressure to 7 and lower the max pressure down to 12 or 13. You can also use the AFlex setting to help with breathing out toward pressure. I would set it to 2.

Thanks! Good ideas, I'll try them. My AHI last night was 1.6 I believe. Actually pretty good, but then again there's 1.5 hrs unaccounted for. Maybe there were events during that period that didn't get counted.

Post Reply Post Reply


#7
Yes, that one time period is really strange. I don't think I've ever seen that.
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Cpap Mask left wrinkle lines in my face. How long doe they take to go away? Ihaveapnea 4 266 03-21-2017, 04:42 AM
Last Post: cant_sleep_in_nj
  Long time cpap'r with new machine - confused. aucivil 14 481 03-06-2017, 12:38 AM
Last Post: Beej
  How long can you expect your machine to last? ppca 8 369 02-13-2017, 02:06 PM
Last Post: ppca
  How long can prescription for CPAP machine be? Dreams of Green 10 662 02-13-2017, 08:06 AM
Last Post: Sleepster
Question How Long Before Centrals Subside hartikka 19 1,056 02-08-2017, 10:33 AM
Last Post: Sleeprider
  CPAP rental period is up...they say come in and get a brand new machine? JustMac 6 477 01-17-2017, 11:21 PM
Last Post: big_dave
  Using CPAP on Long Haul Flights holden4th 3 336 01-11-2017, 06:36 PM
Last Post: holden4th

Forum Jump:

New Posts   Today's Posts




About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.

For any more information, please use our contact form.