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

Centrals and Leak Rate
#1
Centrals and Leak Rate
Looking at this chart which highlights a series of central Apneas, They seem to be correlated to the Leak Rate somehow. Does anyone have any observations?

[Image: jkqUW9H.png]
Began APAP 11/28/17
Post Reply Post Reply






Donate to Apnea Board  
#2
RE: Centrals and Leak Rate
You have leaks all over the place it looks like mouth breathing it may be that these are not CA’s but you breathing through your mouth that the apap cannot detect. You have a huge amount of large leaks over 1/5 of the time you need to concentrate on that first once the leaks are sorted then we can look at the flow.



Jason
Post Reply Post Reply
#3
RE: Centrals and Leak Rate
(12-10-2017, 01:26 PM)jaswilliams Wrote: You have leaks all over the place it looks like mouth breathing it may be that these are not CA’s but you breathing through your mouth that the apap cannot detect. You have a huge amount of large leaks over 1/5 of the time you need to concentrate on that first once the leaks are sorted then we can look at the flow.



Jason

Why would the software call these CA's if it can NOT detect them (due to my mouth breathing)? Wouldn't it be more likely to miss apneas if the leaks are too high? Thinking-about

BTW, these large leaks just began 2 nights ago. Even including them, my ave leak rate for the last 2 weeks has been 7.4%. I am also trying to figure out why suddenly the leak rate tripled. Last night I tried to loosen up my mask a bit (did not work!), and tonight I am going to try a new pillow in my mask.
Began APAP 11/28/17
Post Reply Post Reply
#4
RE: Centrals and Leak Rate
It is not detecting that you are breathing, and it is not detecting a flow restriction, so it is assuming that it is a central event.

Another issue is large leaks can flush excess CO2 from the system and induce hypocapnia. Since the CO2 level in the blood is what triggers us to inhale, the result of hypocapnia is truly a central apnea event that happens to prevent hyperventilation.
-- Rich
Links to Download OSCAR here
OSCAR Installation and Setup

Using Attachments to Post Images on Apnea Board

INFORMATION ON FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.

Post Reply Post Reply






Donate to Apnea Board  


Possibly Related Threads...
Thread Author Replies Views Last Post
  Seemingly little correlation between EPAP (or PS) and AHI or flow rate. [UARS] ldinks 42 676 6 hours ago
Last Post: SarcasticDave94
  Lots of Centrals and frequency Cheyne Stokes patterns Flex Plexico 4 113 07-29-2021, 09:48 AM
Last Post: Sleeprider
  Odd flow rate graph gadgetmaniah 17 311 07-28-2021, 01:09 PM
Last Post: gadgetmaniah
  How long for centrals/clear airways to subside after starting apap? blancobonzo 12 303 07-27-2021, 10:30 PM
Last Post: blancobonzo
  Centrals: Do you have Complex CSA or other type? S. Manz 5 174 07-24-2021, 08:08 PM
Last Post: SarcasticDave94
  F. & P. Vitera full face mask leak Rgn3 16 335 07-24-2021, 04:30 AM
Last Post: SarcasticDave94
  Centrals: Finally getting some sleep with my ASV therapy S. Manz 2 126 07-21-2021, 05:25 PM
Last Post: S. Manz


New Posts   Today's Posts






About Apnea Board

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