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

High leak rate affecting treatment...
#1
High leak rate affecting treatment...
Hello,
    Quick question,
          I frequently get a high leak rate with my mask well over the 24L threshold that they suggest. I use my mask 7-8 hrs. a night but get high leak rates. How much does that impact the therapy if anyone has had experience with this. Thanks in advance for any feedback. Sleep-well
Post Reply Post Reply






Donate to Apnea Board  
#2
RE: High leak rate affecting treatment...
(12-14-2019, 07:51 PM)MDHil Wrote:           ...I frequently get a high leak rate with my mask well over the 24L threshold that they suggest. ...

I'm a relative newbie but I believe that the machines can usually correct for low leaks.  Once the leaks get too bad, the data from the pressure sensors becomes unreliable which makes it difficult for the algorithms to know what to do.  It also can mean that the OSCAR charts (which show that data) may become misleading in those times of bad leaks.
I suspect that the machines will stop making changes during bad leaks to avoid making poor choices...not certain... it seems wise though.
There's a UI option in OSCAR to put grey/gray shading in those regions on the graphs to emphasize that large leaks are happening and give you a heads up.
Post Reply Post Reply
#3
RE: High leak rate affecting treatment...
(12-14-2019, 08:05 PM)ApneaQuestions Wrote:
(12-14-2019, 07:51 PM)MDHil Wrote:           ...I frequently get a high leak rate with my mask well over the 24L threshold that they suggest. ...

....I suspect that the machines will stop making changes during bad leaks to avoid making poor choices...not certain... it seems wise though.
There's a UI option in OSCAR to put grey/gray shading in those regions on the graphs to emphasize that large leaks are happening and give you a heads up.
Here's data from last night for me..

Notice that..
1) between 5:00 and 5:20 I was having "Large Leaks" (Presumably I got into a position that made the mask slip... it's hard to know for sure) In my case the leaks were 30-32. I don't know if that matches what you called "well above 24L".
2) the grey shading in OSCAR gives us a heads up on the other graphs that large leaks are happening (also on top in the events graph)
3) The machine continued to adjust pressures during those leaks and did not take the "do nothing for the time being" strategy.  (See the steps in pressure during these leaks).
4) Those pressure changes look like they are in response to the apparent flow limitations happening around that time.

This doesn't answer your initial question "Are high leaks affecting treatment?" but you can see that my machine continues to try.
If those apparent flow limitations are real then the machine is doing the right things.


Attached Files Thumbnail(s)
   
Post Reply Post Reply
#4
RE: High leak rate affecting treatment...
I thought of your question as I read this.....

Page 74 of this 77 pdf contains the attached image
http://www.masm.wildapricot.org/resource...Morgan.pdf

On that slide, the author felt that the AHI looked better when the leaks were controlled better.

I take that to imply that large leaks can possibly adversely impact the therapy.

Of course, without seeing the details of the study that produced that data we can't know for sure if there was something else going on to explain the apparent correlation between Leaks and AHI.


Attached Files Thumbnail(s)
   
Post Reply Post Reply






Donate to Apnea Board  


Possibly Related Threads...
Thread Author Replies Views Last Post
  Please help with treatment review DaveL 282 7,190 4 hours ago
Last Post: DaveL
  Effort to improve treatment of OSA and IH QuietSign 79 1,412 Yesterday, 02:52 PM
Last Post: DaveL
  [Equipment] Massive leak rate, tape isn't helping Gronk 29 741 09-23-2020, 09:58 AM
Last Post: Dormeo
  [Diagnosis] Leak rate level and OA apneas between nasal and full face mask andreasnasioudis 0 64 09-20-2020, 03:55 AM
Last Post: andreasnasioudis
  A deep report on sleep treatment racprops 20 651 09-18-2020, 10:18 AM
Last Post: racprops
  Is there a link between sleep apnea treatment and incontinence? DaveL 0 122 09-15-2020, 10:57 AM
Last Post: DaveL
  How can I make my treatment more effective? Neighborgeek 9 236 09-14-2020, 08:37 PM
Last Post: Neighborgeek


New Posts   Today's Posts






About Apnea Board

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