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

[Pressure] What is the theoritical correct pressure for a fixed pressure CPAP?
#11
RE: What is the theoritical correct pressure for a fixed pressure CPAP?
(05-14-2017, 06:28 PM)Rcgop Wrote: I am looking for the pressure setting that would be recommended for a straight CPAP. I am not including my data because I want the theory behind what the recommended pressure would be set.

I know I need the minimum to be high enough to be comfortable and to keep the airway from collapsing. I am beginning to believe the minimum is needed to keep the OA's, H's, flow limits, and snores to a min. And, if the max is too high, you will introduce CA's.

My overall numbers and sleep experience is excellent. AHI near 1 with a few exceptions. Gave up the chin strap as it is no longer needed for leaks.

Most of my apneas are CA's which makes me think the max pressure could be lowered. My home study PSG showed zero Centrals so I wonder if I could lower my max which is quite low anyway.

As I said, "Looking for the theoretical pressure for a straight CPAP". I am thinking the changing pressure has some disruptive effect on my sleeping.

there is no such thing

everybody has their own pressure that works best
and many people change from day to day if not hour to hour

get an auto machine that changes to what you actually need at that moment
Post Reply Post Reply
#12
RE: What is the theoritical correct pressure for a fixed pressure CPAP?
(05-14-2017, 06:28 PM)Rcgop Wrote: I am looking for the pressure setting that would be recommended for a straight CPAP. I am not including my data because I want the theory behind what the recommended pressure would be set.

I know I need the minimum to be high enough to be comfortable and to keep the airway from collapsing. I am beginning to believe the minimum is needed to keep the OA's, H's, flow limits, and snores to a min. And, if the max is too high, you will introduce CA's.

My overall numbers and sleep experience is excellent. AHI near 1 with a few exceptions. Gave up the chin strap as it is no longer needed for leaks.

Most of my apneas are CA's which makes me think the max pressure could be lowered. My home study PSG showed zero Centrals so I wonder if I could lower my max which is quite low anyway.

As I said, "Looking for the theoretical pressure for a straight CPAP". I am thinking the changing pressure has some disruptive effect on my sleeping.

you do realise that a cpap only has one pressure

a bipap has two
Post Reply Post Reply
#13
RE: What is the theoritical correct pressure for a fixed pressure CPAP?
A CPAP has a pressure range for 4cm to 20cm and can allow an exhale pressure relief of up to 3cm.  A Bi-PAP has a pressure range of 4cm to 25cm and can allow an exhale pressure relief greater than 3cm.  CPAPs can come in a single pressure model or an Autoset (APAP) model that will allow setting the pressure range.
Crimson Nape
Apnea Board Moderator
Project Manager for OSCAR - Open Source CPAP Analysis Reporter
www.ApneaBoard.com
___________________________________
Useful Links -or- When All Else Fails:
The Guide to Understanding OSCAR
OSCAR Chart Organization
Attaching Images and Files on Apnea Board
Apnea Helpful Tips

INFORMATION ON APNEA BOARD 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 APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Post Reply Post Reply
#14
RE: What is the theoritical correct pressure for a fixed pressure CPAP?
He has an auto machine. He doesn't realise how good his numbers are and is concerned about 3 clear airways.
I think he's referring to his pressure range min and max.


Though I would say that the EPR function is close enough to a PS 1-3cm bilevel for me
mask fit http://www.apneaboard.com/wiki/index.php...ask_Primer
For auto-cpap, from machine data or software. You can set the min pressure 1 or 2cm below 95%. Or clinicians commonly use the maximum or 95% pressure for fixed pressure CPAP, this can also be used for min pressure.
https://aasm.org/resources/practiceparam...rating.pdf
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
Sad Ghastly Pressure Spikes - Please Help! Sleeper49 9 209 1 hour ago
Last Post: Sleeper49
  [Pressure] Looking for treatment/pressure advice - want to stay asleep! amgpeter63 1 161 12-20-2024, 02:03 PM
Last Post: SarcasticDave94
  As I search my optimal pressure, should I increase by 1 cmH2O per week at most? Fabrice01 6 279 12-20-2024, 01:57 PM
Last Post: Fabrice01
  How can my pressure change in the middle of the night ? williegeez 10 464 12-12-2024, 05:00 PM
Last Post: williegeez
  95% pressure steadily going up- should I be concerned? Vike3 15 567 12-08-2024, 12:31 AM
Last Post: SarcasticDave94
  Pressure Problem: Can Anyone Make Sense Of This, Please?? channeal 2 210 12-04-2024, 11:07 AM
Last Post: Deborah K.
  Bipap Pressure Suggestions supyasieve 23 3,249 12-02-2024, 12:53 PM
Last Post: supyasieve


New Posts   Today's Posts


About Apnea Board

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