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Pressure equalization
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imbracer Offline

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Posts: 2
Joined: Mar 2014

Machine: S9
Mask Type: Nasal mask
Mask Make & Model: resmed
Humidifier: s9 autoset
CPAP Pressure: unsure
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #1
Pressure equalization
When I put my mask on I can feel the air rush in and a slight resistance when I breath out. Many times when I wake up I fell like the machine not working because that feeling of air rushing in and the restriction breathing out is gone. When I pull the mask away from my face air is rushing out so I know the machine is working. What is causing this? I use a Resmes S9 with a full face mask.
04-27-2014 10:22 AM
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justMongo Offline

Monitors

Posts: 3,853
Joined: Sep 2013

Machine: ResMed VPAP Auto (S9)
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quattro
Humidifier: ResMed H5i
CPAP Pressure: 18 IPAPmax - 11 EPAPmin, PS=5
CPAP Software: Other Software

Other Comments: μολὼν λαβέ

Sex: Male
Location: Калифорния

Post: #2
RE: Pressure equalization
It is slightly more difficult to breathe out against the pressure. You may find some relief by setting Pressure Support.
It lowers the exhalation pressure a few cm-H2o during exhalation.

BTW -- In infer your humidifier is an H5i, your machine is an S9 Autoset?

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.
04-27-2014 10:28 AM
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trish6hundred Offline

Advisory Members

Posts: 6,449
Joined: May 2012

Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: H5i Heated Humidifier
CPAP Pressure: 10 - 7-20 Cm H2O
CPAP Software: Not using software

Other Comments: I started CPAP in 2008. Totally blind since birth.

Sex: Female
Location: Missouri, USA

Post: #3
RE: Pressure equalization
Hi imbracer,
WELCOME! to the forum.!
Edit: Are you using EPR (Exhale Pressure Relief,) on your machine? That might help you to breathe against the pressure easier, End edit.
Hang in there for answers to your question and best of luck to you with your CPAP therapy.

trish6hundred
(This post was last modified: 04-27-2014 10:35 AM by trish6hundred.)
04-27-2014 10:30 AM
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imbracer Offline

New Members

Posts: 2
Joined: Mar 2014

Machine: S9
Mask Type: Nasal mask
Mask Make & Model: resmed
Humidifier: s9 autoset
CPAP Pressure: unsure
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #4
RE: Pressure equalization
Yes, Hi and autoset
04-27-2014 10:32 AM
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Sleepster Offline
Wiki Editor
Moderators

Posts: 4,995
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #5
RE: Pressure equalization
(04-27-2014 10:22 AM)imbracer Wrote:  When I put my mask on I can feel the air rush in and a slight resistance when I breath out. Many times when I wake up I fell like the machine not working because that feeling of air rushing in and the restriction breathing out is gone. [...] What is causing this?

That is the wonderful capability of the human body and mind to adapt!

We get used to the continuous pressure and it becomes the new normal.

This is why newbies need to be encouraged to persevere. The things that bother us about CPAP therapy are transient. We soon get used to them and are no longer aware of them. CPAP therapy becomes the new normal for us.

Personally, I feel like the CPAP mask and machine are parts of my body that the good Lord forgot to attach.

Sleepster
Apnea Board Moderator
www.ApneaBoard.com


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.
04-27-2014 10:37 AM
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PaytonA Offline
Wiki Editor
Monitors

Posts: 3,013
Joined: Dec 2013

Machine: ResMed S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
Humidifier: H5i(distilled-top up)
CPAP Pressure: VAuto MinE14.0 MaxI 20.6 PS4.0
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Orange County,California

Post: #6
RE: Pressure equalization
Welcome to the forum, imbracer.

I think Sleepster is right. I also think that in sleep our body relaxes and our subconcious mind takes over. When that happens we sync up better with the machine and the whole thing becomes effortless. When I go to bed, I can feel the incoming air and the switches from IPAP to EPAP. In the morning when I wake up, it feels like the machine is off. It is like when you turn your CPAP off with your mask still on after using it all night. When the machine shuts off it feels extremely difficult to take a breath. The main reason it feels so difficult is because it has been so easy when the machine was applying pressure.

Best Regards,

PaytonA
04-27-2014 11:40 AM
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RonWessels Offline

Preferred Members-2

Posts: 465
Joined: Jun 2013

Machine: REMstar Auto AFlex DS560TS
Mask Type: Nasal mask
Mask Make & Model: ComfortGel Blue
Humidifier: REMstar Heated Tube DS6T
CPAP Pressure: 11 - 20
CPAP Software: SleepyHead

Other Comments: CMS50F Pulse Oximeter

Sex: Male
Location: Ontario, Canada

Post: #7
RE: Pressure equalization
I agree. It's called "getting used to it". The next stage will be finding that your ramp (if you use it when first going to bed) feels like you are not getting enough air, so you increase the minimum ramp pressure. Then you simply stop using the ramp altogether. And eventually, you simply put on the mask and turn on the machine with little if any notice.

If I recall my initial few months, right around now you might be getting a backache right between your shoulder blades when you wake up. This is also normal, and is essentially "muscle ache" as your lungs are exercising against the increased pressure. It will eventually go away, although it did take a month or two for me.
04-29-2014 07:30 PM
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