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any benefit of narrowing pressure ranges
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ckingzzzs Offline

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Posts: 57
Joined: Aug 2015

Machine: resmed aircurve 10 VAUTO
Mask Type: Nasal pillows
Mask Make & Model: swift fx nasal pillows
Humidifier: resmed aircurve10 vauto
CPAP Pressure: min epap 7, max ipap 20, PS 4
CPAP Software: ResScan SleepyHead

Other Comments: CPAP user June-Dec 2015, VPAP starting Jan 2016 and struggling with proper adjustments

Sex: Male
Location: maine

Post: #1
any benefit of narrowing pressure ranges
In the months of August and September, I used my airsense 10, with nasal pillows, with a pressure range of 5-20, and 10 min ramp. My numbers were about the same:

AI= 5.7
AHI= 7.2
Central=5.2

median pressure of 8.4 and max pressure of 12

I narrowed the pressure range to 7-14 for the entire month of October in an effort to reduce my centrals and the numbers were:

AI=6.5
AHI=7.5
Central=4.5

median pressure was 9.5 and max pressure was 12.1

Though the central had a slight decrease, my AI increased and so did my median pressure. is there really any benefit to narrowing the pressure ranges down??
11-04-2015 10:41 PM
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Ghost1958 Offline

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Posts: 957
Joined: Aug 2014

Machine: PRS1 Series Sixty Auto Aflex
Mask Type: Nasal mask
Mask Make & Model: F&P Eson
Humidifier: PRS1 with Heated Hose
CPAP Pressure: 10.5 min 16 max
CPAP Software: SleepyHead EncoreBasic

Other Comments: Moderate to Severe SA Obstructive. Rapid O2 desat off the machine.

Sex: Male
Location: KY

Post: #2
RE: any benefit of narrowing pressure ranges
I suggest you start nudging the min pressure up. you Will acomplish more on the low side of therange than the high side
11-04-2015 11:20 PM
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zonk Offline

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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: #3
RE: any benefit of narrowing pressure ranges
The majority of AHI events are centrals, you don't treat centrals with pressure increase
Some medication and heart conditions may cause central apnea in some people

Does the machine report any % time in CSR
(This post was last modified: 11-05-2015 12:39 AM by zonk.)
11-05-2015 12:25 AM
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Ghost1958 Offline

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Posts: 957
Joined: Aug 2014

Machine: PRS1 Series Sixty Auto Aflex
Mask Type: Nasal mask
Mask Make & Model: F&P Eson
Humidifier: PRS1 with Heated Hose
CPAP Pressure: 10.5 min 16 max
CPAP Software: SleepyHead EncoreBasic

Other Comments: Moderate to Severe SA Obstructive. Rapid O2 desat off the machine.

Sex: Male
Location: KY

Post: #4
RE: any benefit of narrowing pressure ranges
(11-05-2015 12:25 AM)zonk Wrote:  The majority of AHI events are centrals, you don't treat centrals with pressure increase
Some medication and heart conditions may cause central apnea in some people

Does the machine report any % time in CSR

That is conventional wisdom.
However i began having more centrals than oa.
Tapped the pressure up a bit and they were gone. And stayed gone.
One of my friends also was having almost all ca ,bumped up a bit and they dissappeared.
Both of us have had infarctions years ago.
Neither of us showed ca in sleep study.
Looking at his and my waveforms the machine was scoring ca when thetre was actvity in the apnea . Should have flagged oa.
Two different machines. Wifes mis flags some ca as well.
I personally dont think the machines are all that when it comes to scoring ca, and tend to flag oa that have some very reduced air flow as ca because the pulse sent out doesnt register a blocked airway..
That is why i tried the pressure bump first. Then him. Worked for us both.
The fact the OPs centrals decreased when mun was upped to 7 indicates that is whats happening. And why i suggested nudging it up a tad more slowly.
Can always back it down on the min if the ca get worse and dont settle and go away.
I think her machine is false flagging centrals, which Resmed and PR machines will do under the right circumstances.
(This post was last modified: 11-05-2015 02:22 AM by Ghost1958.)
11-05-2015 02:09 AM
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Dagmar Offline

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Posts: 97
Joined: Jul 2015

Machine: Resmed Airsense 10 Autoset
Mask Type: Nasal mask
Mask Make & Model: Wisp by Respironics
Humidifier: Resmed
CPAP Pressure: 10
CPAP Software: ResScan

Other Comments:

Sex: Male
Location: Michigan

Post: #5
RE: any benefit of narrowing pressure ranges
My CA events appear related to pressure increases, but not necessarily higher pressure. So, I'm running in straight CPAP mode.
11-05-2015 07:22 AM
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Napmeister Online

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Posts: 74
Joined: Jan 2015

Machine: Resmed S9 Elite
Mask Type: Nasal pillows
Mask Make & Model: Resmed P10 Pillow mask
Humidifier: H5i
CPAP Pressure: testing 10.2 cm
CPAP Software: ResScan SleepyHead

Other Comments: Windows 8.1 64 bit

Sex: Male
Location:

Post: #6
RE: any benefit of narrowing pressure ranges
Nice thing about this forum is you become knowledgeable about the equipment and how you you respond to the many experiments we can try. Go slow for now but slight changes can tweak the therapy results.

I'm another who saw better results on a steady pressure and experimenting with EPR choices.
11-05-2015 12:00 PM
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zonk Offline

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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: #7
RE: any benefit of narrowing pressure ranges
(11-05-2015 02:09 AM)Ghost1958 Wrote:  That is conventional wisdom.
I wasn't referring to your comments, just in general
11-05-2015 03:04 PM
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Ghost1958 Offline

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Posts: 957
Joined: Aug 2014

Machine: PRS1 Series Sixty Auto Aflex
Mask Type: Nasal mask
Mask Make & Model: F&P Eson
Humidifier: PRS1 with Heated Hose
CPAP Pressure: 10.5 min 16 max
CPAP Software: SleepyHead EncoreBasic

Other Comments: Moderate to Severe SA Obstructive. Rapid O2 desat off the machine.

Sex: Male
Location: KY

Post: #8
RE: any benefit of narrowing pressure ranges
Okay
11-05-2015 06:24 PM
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