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Is my pressure too high?
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Dawei Offline

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Posts: 342
Joined: Feb 2012

Machine: ResMed S9 AutoSet
Mask Type: Other
Mask Make & Model: Respironics "FitLife"
Humidifier: H5i
CPAP Pressure: 10-20
CPAP Software: ResScan SleepyHead

Other Comments: Began CPAP in 2006; spent the first 6 years with a "brick"

Sex: Male
Location: Western North Carolina

Post: #21
RE: Is my pressure too high?
Oops, I should have written extra high LEAK periods, not pressure periods. Sorry about that.
10-15-2012 04:35 PM
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Dawei Offline

Preferred Members-2

Posts: 342
Joined: Feb 2012

Machine: ResMed S9 AutoSet
Mask Type: Other
Mask Make & Model: Respironics "FitLife"
Humidifier: H5i
CPAP Pressure: 10-20
CPAP Software: ResScan SleepyHead

Other Comments: Began CPAP in 2006; spent the first 6 years with a "brick"

Sex: Male
Location: Western North Carolina

Post: #22
RE: Is my pressure too high?
Your leak periods must be quite short in duration. I say simply from the fact that your 95th percentile leak rate is way down at 1.2 and your AHI is almost below that 5 level. My thought is that the max. spiking high leak rate is not the machine responding to an apnea. Call it a wager.
10-15-2012 04:53 PM
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DennisM Offline

Members

Posts: 7
Joined: Sep 2012

Machine: Resmed S9 Autoset
Mask Type: Full face mask
Mask Make & Model:
Humidifier: Resmed
CPAP Pressure: none
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #23
RE: Is my pressure too high?
Also I'm curious as to how the machine works, low vs. high with the ramping, so say if it is set to 4 to 19 @ 45 minutes ramp time does it start out at 4 (cfm?) and after 45 minutes go up to 19 and stay there or does the pressure actually constantly fluctuate and go up and down depending on how hard you breath in or out?
10-16-2012 11:44 AM
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PaulaO2 Offline
Wiki Editor
Moderators

Posts: 8,065
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #24
RE: Is my pressure too high?
No, it does not fluctuate based on breathing in or out. That's what the EPR and x-Flex is for. The pressure it maintains is based on the resistance it meets.

According to the clinician manual, a ramp in APAP mode starts below the set range then slowly increases to the lowest of the range. It then goes into APAP mode and finds the best pressure needed to keep your airway open. The starting pressure for the ramp is a number you can set and the lowest the ramp can be set for is 4. So if the minimum pressure is 8, then the ramp would start at 4 then slowly increase during that 45min time to 8. At that point, it then finds the setting needed for treatment.

In your case, I don't know how it ramps up since the ramp start and the start of the pressure range are the same.

This is one of the reasons having an autoPAP set wide open is not a good idea.

PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

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.
10-16-2012 12:11 PM
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DennisM Offline

Members

Posts: 7
Joined: Sep 2012

Machine: Resmed S9 Autoset
Mask Type: Full face mask
Mask Make & Model:
Humidifier: Resmed
CPAP Pressure: none
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #25
RE: Is my pressure too high?
"In your case, I don't know how it ramps up since the ramp start and the start of the pressure range are the same."

I'm not sure I understand, the machine is set to 4 low & 19 high.
10-16-2012 03:24 PM
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Sleepster Offline
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Posts: 4,989
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: #26
RE: Is my pressure too high?
I need to see the separate CA and OA indexes. Based on what I've seen, though, I would concur with zonk and suggest you try lowering the pressure.

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.
10-16-2012 03:42 PM
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PaulaO2 Offline
Wiki Editor
Moderators

Posts: 8,065
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #27
RE: Is my pressure too high?
The purpose of the ramp is to slowly introduce the user to the minimum treatment pressure.

The lowest a person with an S9 Autoset can set the RAMP to is 4.

Your machine's MINIMUM pressure is set at 4.

Since the ramp low and your machine's minimum low are the same, I don't know what it ramps up to.

(Personally, I'd not be able to breathe with a pressure that low. I don't bother with ramp anymore because I've gotten so used to my treatment pressure of 12, anything less feels smothering.)

PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

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.
10-16-2012 03:59 PM
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