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Cpap too high
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Bullabill Offline

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Posts: 2
Joined: Feb 2016

Machine: Fisher and Paykel 238
Mask Type: Oral
Mask Make & Model: none
Humidifier: As above
CPAP Pressure: 14
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #1
Cpap too high
Is having too high a pressure set on the machine a problem? For example; I need a setting of 14cm h2o. Would using a machine set to 18cm h2o be a bad thing?
02-06-2016 01:17 AM
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DeepBreathing Offline
Wiki Editor
Moderators

Posts: 2,296
Joined: Sep 2013

Machine: Resmed S9 VPAP Adapt
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: Resmed H5i
CPAP Pressure: EPAP: 9 - 15 PS: 3 - 10
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Perth, Western Australia

Post: #2
RE: Cpap too high
G'day Bullabill, welcome to the forum.

Your pressure should be high enough to treat your apneas but there's no benefit in going higher. A higher pressure is more likely to be uncomfortable, making it difficult to sleep - which would be counter-productive. It could also cause aerophagia - swallowing air into your stomach, which is likewise uncomfortable and will give you a gassy bloated feeling. Lastly, too high a pressure can often cause central apneas, which again is counter-productive.

Do you have a specific reason for the question?

DeepBreathing
Apnea Board Moderator
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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.
02-06-2016 01:30 AM
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Bullabill Offline

New Members

Posts: 2
Joined: Feb 2016

Machine: Fisher and Paykel 238
Mask Type: Oral
Mask Make & Model: none
Humidifier: As above
CPAP Pressure: 14
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #3
RE: Cpap too high
Thanks, DeepBreathing,

"Do you have a specific reason for the question?"

I've read quite a lot of stuff about CPAP but nothing about the dangers (if any) of using too high a pressure. I tried searching the forum but found nothing here either.

In the article about adjusting the pressure setting it talks about adjusting by .5mm at a time and it mentions the point of diminishing returns. I had in my mind adjusting upwards and then finding that point, and then wondering why things are worse. That's all.
02-06-2016 02:16 AM
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DeepBreathing Offline
Wiki Editor
Moderators

Posts: 2,296
Joined: Sep 2013

Machine: Resmed S9 VPAP Adapt
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: Resmed H5i
CPAP Pressure: EPAP: 9 - 15 PS: 3 - 10
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Perth, Western Australia

Post: #4
RE: Cpap too high
I'm not familiar with your particular CPAP, but if it is data-capable, a better way is to use SleepyHead software to monitor your results. With a bit of practice (and guidance from some clever people on this forum) you can pretty quickly zero in on your optimum settings. You can find a link to Sleepyhead at the top of every page in this forum.

There's no way the machine can generate enough pressure to actually hurt you, so the dangers (such as they are) are limited to what I wrote above.

DeepBreathing
Apnea Board Moderator
www.ApneaBoard.com


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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.
02-06-2016 03:25 AM
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zonk Offline

Advisory Members

Posts: 7,908
Joined: Feb 2012

Machine: A10 AutoSet
Mask Type: Nasal mask
Mask Make & Model: Activa LT
Humidifier: Integrated /ClimateLineAir
CPAP Pressure: 9/13
CPAP Software: ResScan

Other Comments: CPAP since Nov 2010

Sex: Male
Location: Australia

Post: #5
RE: Cpap too high
Hi Bullabill
Adjusting pressure upwards has to be for a reason, like having too many apnea/hypopnea events and AHI exceeding the acceptable level of 5
Also upward pressure doesn't help with central apnea and could make it worse. FP 238 doesn't flag central apnea and I'm not sure whether flag obstructive apnea/hypoponea or report leak rate either

SleepyHead doesn't support FP SleepStyle series, only support FP Icon and Icon +
02-06-2016 05:25 AM
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trish6hundred Offline

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Posts: 6,452
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: #6
RE: Cpap too high
Hi Bullabill,
WELCOME! to the forum.!
Much success to you as you continue your CPAP therapy and hang in there for more responses to your post.

trish6hundred
02-06-2016 08:36 PM
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vsheline Online

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Posts: 1,911
Joined: Jul 2012

Machine: S9 VPAP Adapt (USA Model# 36007, not better 36037 or 36067)
Mask Type: Full face mask
Mask Make & Model: F10 or SimPlus w/ 2Liners. MirageQuatro & Gecko gel pad
Humidifier: H5i
CPAP Pressure: 15 EPAP, PS 5-10
CPAP Software: ResScan

Other Comments: Marfan Syndrome, chronic bradycardia, occasional Cheyne-Stokes Respiration

Sex: Male
Location: California, USA

Post: #7
RE: Cpap too high
Hi Bullabill,

In addition to the possible risks which DB wrote of, unneccessarily high pressure could aggravate intraocular pressure and inner ear pressure, perhaps worsening glaucoma or hearing or balance problems. Also, higher pressure often means tighter face mask straps, which can cause problems, including stronger pulling on the jaw, perhaps worsening jaw TMJ problems or pulling the teeth inward until they become crouded and crooked.

Most of these risks are either minor or rare, but, certainly, it is generally a good idea to avoid higher pressure than actually needed for restful sleep.

But if we need higher pressure for restful sleep then we need to attend to it. (My own pressure often reaches 24 or 25 cm H2O.)

Most important is to achieve restful sleep, without which our health will gradually deteriorate horribly, and we might fall asleep behind the wheel and kill or cripple ourself and others.

Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment. The Advisory Member group provides advice and suggestions to Apnea Board administrators and staff on matters concerning Apnea Board operation and administrative policies - not on matters concerning treatment for Sleep Apnea. I think it is now too late to change the name of the group but I think Voting Member group would perhaps have been a more descriptive name for the group.
(This post was last modified: 02-07-2016 02:17 AM by vsheline.)
02-07-2016 02:05 AM
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DariaVader Offline
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Monitors

Posts: 1,828
Joined: Nov 2014

Machine: Resmed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: Airfit P10 for Her
Humidifier: H5i humidifier with ClimateLine heated hose
CPAP Pressure: 8-15
CPAP Software: SleepyHead

Other Comments: diabetes II, Thyroidectomized, Primary Immune Deficiency, and the list goes on :P

Sex: Female
Location: Oregon

Post: #8
RE: Cpap too high
Also, higher pressure can cause an increase in intrathoracic pressure resulting in issues with the vascular system, circulation, water retention, etc.

هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه
Tongue Suck Technique for prevention of mouth breathing:
  • Place your tongue behind your front teeth on the roof of your mouth
  • let your tongue fill the space between the upper molars
  • gently suck to form a light vacuum
Practising during the day can help you to keep it at night

هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه هههههه
02-07-2016 03:25 PM
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ginzo Offline

Advisory Members

Posts: 227
Joined: Aug 2015

Machine: ResMed Airsense 10 Autoset
Mask Type: Nasal pillows
Mask Make & Model: Res Med Airfit P-10
Humidifier: Humidair S with heated hose.
CPAP Pressure: 10.0-13.0
CPAP Software: ResScan SleepyHead

Other Comments: I'm a mouth breather!!!

Sex: Male
Location: North Port, FL

Post: #9
RE: Cpap too high
bullabill!!!! Welcome!!!!

For me, the higher pressure while I use a nasal pillow causes major leakage issues. I have self moderated my usage and switched from CPAP to APAP mode and with much due diligence and record keeping, have improved my therapy immensely.

The folks here are a wealth of information that can help you improve your therapy.Sleep-well
02-07-2016 08:50 PM
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Mr Nifty Offline

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Posts: 31
Joined: Jan 2016

Machine: ResMed AirCurve 10 VAuto
Mask Type: Nasal mask
Mask Make & Model: Mirage Activa LT
Humidifier: ResMed Climateline
CPAP Pressure: IPAP 22 EPAP 16
CPAP Software: ResScan SleepyHead

Other Comments: Darth Vader used a vpap

Sex: Male
Location: South Dakota

Post: #10
RE: Cpap too high
The higher the pressure the more leaks. Be thankful with low pressure!
02-10-2016 11:05 PM
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