What can cause a sudden increase in pressure on CPAP?

Steves396lt1 wrote:Thanks everyone. I will CPAP it tonight, and see what happens. I dont have software yet, but compliance and hour useage.

Total machine hours run, and total hours of use. I misunderstood you and thought you reported your machine gives usage /compliance per night, or per session.

ozij wrote:

Steves396lt1 wrote:Thanks everyone. I will CPAP it tonight, and see what happens. I dont have software yet, but compliance and hour useage.

Total machine hours run, and total hours of use. I misunderstood you and thought you reported your machine gives usage /compliance per night, or per session.

It does tell me compliance. When I hold the information access button down for a few seconds, it goes into a different screen mode and then I click through it and it tell me hour use age and compliance hours and other items, such as pressures min/max/ramp/ramp time etc. If I had software it would tell me more.

Steves396lt1 wrote:

ozij wrote:

Steves396lt1 wrote:Thanks everyone. I will CPAP it tonight, and see what happens. I dont have software yet, but compliance and hour useage.

Total machine hours run, and total hours of use. I misunderstood you and thought you reported your machine gives usage /compliance per night, or per session.

It does tell me compliance. When I hold the information access button down for a few seconds, it goes into a different screen mode and then I click through it and it tell me hour use age and compliance hours and other items, such as pressures min/max/ramp/ramp time etc. If I had software it would tell me more.

Total machine hours run is when it runs even if there's no person using a mask on the other side of the hose.
By total hours of use I mean total hours of you using the machine with your mask on. That is compliance.

You are abolutely right: The Silverlining software will let you have far more info than the screen.

viewtopic.php?p=477375#p477375

Steves396lt1 wrote:I will try the APAP for week and see what happens. I will look into the software for this system too. I am not paying a 100 dollars for it though.

How long since you set the 420E in APAP mode?
Which settings did you give the machine?
How often did you run into a sudden rise in pressure?
Is this machine new, or used?
What is the IFL1 set on?


O.

ozij wrote:

Steves396lt1 wrote:

ozij wrote:

Steves396lt1 wrote:Thanks everyone. I will CPAP it tonight, and see what happens. I dont have software yet, but compliance and hour useage.

Total machine hours run, and total hours of use. I misunderstood you and thought you reported your machine gives usage /compliance per night, or per session.

It does tell me compliance. When I hold the information access button down for a few seconds, it goes into a different screen mode and then I click through it and it tell me hour use age and compliance hours and other items, such as pressures min/max/ramp/ramp time etc. If I had software it would tell me more.

Total machine hours run is when it runs even if there's no person using a mask on the other side of the hose.
By total hours of use I mean total hours of you using the machine with your mask on. That is compliance.

You are abolutely right: The Silverlining software will let you have far more info than the screen.

viewtopic.php?p=477375#p477375

Steves396lt1 wrote:I will try the APAP for week and see what happens. I will look into the software for this system too. I am not paying a 100 dollars for it though.

How long since you set the 420E in APAP mode?
Which settings did you give the machine?
How often did you run into a sudden rise in pressure?
Is this machine new, or used?
What is the IFL1 set on?


O.

My machine is my second one, its new and I have used it since April 17, 2010.
One issue with sudden pressure
FL1 is enabled.
Okay, I am not going to argue with you about this. The machine does tell how many hours it has been used (hours the machine has been on). Now when I do the information access button action I spoke of earlier, it tells me the following, in Order
APAP
4.0 cmH2O Initial Pressure
11.5 cmH20 (this is max pressure)
4.0 cmH2O (min pressure)
0 min ramp
FL1
A 10 cm H2O (max pressure for the commands on apnea)
120 H 52 min (hours device has been operating)
101 H (compliance hours, time which patient has breathed with device) hourglass and human symbols stand for patient time
And last software version 1d 1.8
And when using this, the compliance meter starts 15 minutes after starting and no leaks detected.
Please go here and read my manual, as you obviously havent.
http://www.cpapsupplyusa.com/community/ ... fault.aspx GoodKnight Puritan Bennet 420E, sixth one down. I also have the practiotioners guide.

Steves396lt1 wrote:Please go here and read my manual, as you obviously havent.
http://www.cpapsupplyusa.com/community/ ... fault.aspx GoodKnight Puritan Bennett 420E, sixth one down. I also have the practiotioners guide.

You're right about that, I've only read the one I downloaded directly from Puritan Bennett's Solvitcenter, here:

http://solvitcenter.puritanbennett.com/?faqid=458 Also the documentation handed to the FDA about the 420E, and the patent application.

Look Steve, the fact I misunderstood what you wrote in your initial posts makes me neither stupid nor ignorant.
I know more about the 420E and how it works than most people on this this forum -- and I really want to help you. I don't care what you call the hour numbers on your LCD -- call them what you want - they won't help us troubleshoot the rise in pressure.

You asked about a sudden rise in pressure, and I am convinced you are indeed using a PB 420E.
So here is my response to your question about the sudden rise in pressure on your Puritan Bennett 420E in APAP:

If the sudden pressure rise happened only once, and you've been using the machine since April 17, then I would suspect a sudden leak, or some snoring -- both of which drive the pressures up very fast on a PB, or (if starts happening often, after a time of stability) a malfunction.

viewtopic.php?p=472795#p472795

Steves396lt1 wrote:Just curious if higher pressure with your machine reduces snoring tendencies?
I have a new machine too, 420E, and I have gone two days with a cool 17 hours use, 2 hours compliance. I have watched after 15 minutes to see the compliance symbol show, went to bed and nothing last night.
Now, My wife says I snore even with the mask, which is a full face Mirage Quattro.
Any suggestions. Yes I have searched, and the search engine provides thousands of related issues. None specific.

To see if I could avoid a sudden rise in pressure, but still enjoy APAP mode I would make the following changes:
I would raise the initial pressure to 8 or even 10,
I would raise minimum pressure to or 7.
This may help to keep you from snoring, and therefore may keep the machine's pressure from swinging so high and bothering you.

I personally would actually would try to find out what the reason was for the pressure rise, before setting the machine on CPAP, and I would read my warranty carefully too.

PB no longer produces the 420E -- hasn't been producing it for a long time -- so if the machine is malfunctioning, and under warranty, I would expect PB to replace it for a the new Sandman series - as they did for Tillymarigold for instance.

By the way, according to that other thread, your first machine was a 420G.

O.

Steve - I don't see that Ozij mentioned, anywhere in this thread, that she used the PB 420E for years and has just changed to another machine in the last few months.

She does know more about this machine than almost anyone else on this forum.

Seems to me that you and she are talking about 2 different things and therefore, have a misunderstanding- not uncommon on internet fourms!!!

O , roger that. I will raise the pressure as suggested and if I am on my back I snore, but I have been sleeping on my side.

Goo luck -- and keep us posted, Steve.
O.