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VPAP vs VPAP Auto
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tomko44 Offline

Members

Posts: 8
Joined: Jul 2012

Machine: S9 VPAP Auto
Mask Type: Nasal mask
Mask Make & Model: Mirage FX
Humidifier: H5i
CPAP Pressure: 04/22
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location:

Post: #1
VPAP vs VPAP Auto
Just got a S9 VPAP Auto after using a System One BiPAP. With the BiPAP I was getting AHI of between .11 and 1. The first day with the Auto I get 2.61. I also get a ton more info with the S9. Is it unusual to start off higher? And is that a bad first day? This machine is silent and the pressure more comfortable. I was getting leaks around my eyes every night before. This one nothing.
08-16-2013 09:28 PM
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STL Mark Offline

Preferred Members

Posts: 44
Joined: Jul 2013

Machine: Resmed S9 VPAP Adapt 36037
Mask Type: Full face mask
Mask Make & Model: Resmed Quattro Air
Humidifier: Resmed H5i
CPAP Pressure: Original Titration: 18 cm H2O
CPAP Software: ResScan SleepyHead

Other Comments: Mode: ASVAuto, Min EPAP: 4, Max EPAP: 15, Min PS: 3, Max PS: 15, Ramp: Off

Sex: Male
Location: Saint Louis, MO USA

Post: #2
RE: VPAP vs VPAP Auto
Usually the Auto machines do start with a lower pressure and increase as needed. This is part of why you are seeing less leaks and find it more comfortable. Also each manufacturer has a different way of responding to inhale and exhale cycles. Your 2.61 AHI is within the generally acceptable range. The important thing is how you feel in the morning.
08-16-2013 09:39 PM
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vsheline Offline

Advisory Members

Posts: 1,907
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: #3
RE: VPAP vs VPAP Auto
(08-16-2013 09:28 PM)tomko44 Wrote:  Just got a S9 VPAP Auto after using a System One BiPAP. With the BiPAP I was getting AHI of between .11 and 1. The first day with the Auto I get 2.61. I also get a ton more info with the S9. Is it unusual to start off higher? And is that a bad first day?

Hi tomko44, welcome to the forum!

Your minimum pressure setting is just 4. I would suggest raising that to your median EPAP (exhale) pressure, or perhaps up to a few cmH2O below the 95 percentile EPAP pressure.

The problem with a "wide open" pressure range is the pressure will occasionally slowly drift way too low, perhaps resulting in additional obstructive events. This may be most of the reason for your higher AHI with the VPAP Auto. Another reason may be differences in criteria for when/how ResMed versus Philips Respironics score events.

Take care,
--- Vaughn

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: 08-17-2013 06:08 PM by vsheline.)
08-17-2013 06:01 PM
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tomko44 Offline

Members

Posts: 8
Joined: Jul 2012

Machine: S9 VPAP Auto
Mask Type: Nasal mask
Mask Make & Model: Mirage FX
Humidifier: H5i
CPAP Pressure: 04/22
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location:

Post: #4
RE: VPAP vs VPAP Auto
(08-17-2013 06:01 PM)vsheline Wrote:  
(08-16-2013 09:28 PM)tomko44 Wrote:  Just got a S9 VPAP Auto after using a System One BiPAP. With the BiPAP I was getting AHI of between .11 and 1. The first day with the Auto I get 2.61. I also get a ton more info with the S9. Is it unusual to start off higher? And is that a bad first day?

Hi tomko44, welcome to the forum!

Your minimum pressure setting is just 4. I would suggest raising that to your median EPAP (exhale) pressure, or perhaps up to a few cmH2O below the 95 percentile EPAP pressure.

The problem with a "wide open" pressure range is the pressure will occasionally slowly drift way too low, perhaps resulting in additional obstructive events. This may be most of the reason for your higher AHI with the VPAP Auto. Another reason may be differences in criteria for when/how ResMed versus Philips Respironics score events.

Take care,
--- Vaughn
I set the EPAP min to 9 and will see what happens. Had another 2+ night, but a bunch were false as I was not asleep, I was in bed but didn't shut off the machine when I awoke.
08-17-2013 07:02 PM
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tomko44 Offline

Members

Posts: 8
Joined: Jul 2012

Machine: S9 VPAP Auto
Mask Type: Nasal mask
Mask Make & Model: Mirage FX
Humidifier: H5i
CPAP Pressure: 04/22
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location:

Post: #5
RE: VPAP vs VPAP Auto
(08-17-2013 07:02 PM)tomko44 Wrote:  
(08-17-2013 06:01 PM)vsheline Wrote:  
(08-16-2013 09:28 PM)tomko44 Wrote:  Just got a S9 VPAP Auto after using a System One BiPAP. With the BiPAP I was getting AHI of between .11 and 1. The first day with the Auto I get 2.61. I also get a ton more info with the S9. Is it unusual to start off higher? And is that a bad first day?

Hi tomko44, welcome to the forum!

Your minimum pressure setting is just 4. I would suggest raising that to your median EPAP (exhale) pressure, or perhaps up to a few cmH2O below the 95 percentile EPAP pressure.

The problem with a "wide open" pressure range is the pressure will occasionally slowly drift way too low, perhaps resulting in additional obstructive events. This may be most of the reason for your higher AHI with the VPAP Auto. Another reason may be differences in criteria for when/how ResMed versus Philips Respironics score events.

Take care,
--- Vaughn
I set the EPAP min to 9 and will see what happens. Had another 2+ night, but a bunch were false as I was not asleep, I was in bed but didn't shut off the machine when I awoke.

After raising the EPAP to 9 the AHI dropped down to .98. So your suggestion worked perfectly!
08-18-2013 01:57 PM
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