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Weird flow graph during a 17 second CA
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Peter_C Offline

Advisory Members

Posts: 1,308
Joined: Sep 2013

Machine: System One DS960HS
Mask Type: Full face mask
Mask Make & Model: Mirage Quattro "MED"
Humidifier: Attached
CPAP Pressure: Auto mode-script is:15/3/3
CPAP Software: EncoreBasic Other Software

Other Comments: Severe obstructive sleep apnea 1999/Just got an ASV machine

Sex: Male
Location: Akron, Ohio USA

Post: #21
RE: Weird flow graph during a 17 second CA
Thank you for the info. I will work to get a copy of the full titration after my shoulder surgery today. I do know for a fact that the sleep doc is planning to have me test to come up with better settings as he doesn't believe in perfect settings from one night in a strange bed. His first step is getting medicare to allow the machine,and, if I am sure that I want a certain machine, he will tell the DME to get it for me. Someone smarter than I needs to pick 'ONE' machine. Do all ASV machines do a backup breathing rate? Is that a default setting?

@Vaughn watch for a small package coming your way too!

*I* am not a DOCTOR or any type of Health Care Professional. My thoughts/suggestions/ideas are strictly only my opinions.

"Only two defining forces have ever offered to die for you. Jesus Christ and the American Soldier. One died for your Soul, the other for your Freedom."
10-20-2014 04:13 AM
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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: #22
RE: Weird flow graph during a 17 second CA
(10-18-2014 06:35 PM)Peter_C Wrote:  Don't they have to add something for the backup breathing too?

The backup rate on the S9 VPAP Adapt will be automatic, meaning it will be based on your recent respiration rate.

On the PRS1 BiPAP autoSV Advanced the backup rate can also be automatic, or it can be set to a fixed backup rate such as 12 breaths per minute.

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: 10-20-2014 04:29 AM by vsheline.)
10-20-2014 04:13 AM
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jcarerra Offline

Advisory Members

Posts: 284
Joined: Jun 2014

Machine: ResMed S9 Adapt SV
Mask Type: Full face mask
Mask Make & Model: Quattro
Humidifier: H5i
CPAP Pressure: min/max EPAP 9/15 min/max PS 4
CPAP Software: ResScan

Other Comments:

Sex: Male
Location: Florida

Post: #23
RE: Weird flow graph during a 17 second CA
With the specs as written, and assuming they mean EPAP/minPS/maxPS, they essentially specify a fixed bi-level machine...
one pressure (settable) for EPAP,
one pressure (Settable) for IPAP (EPAP + PS).

I am concerned that the DME may not feel "legally covered" to give you an Adapt or even a VPAP of any sort.
(This post was last modified: 10-20-2014 07:57 AM by jcarerra.)
10-20-2014 07:55 AM
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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: #24
RE: Weird flow graph during a 17 second CA
(10-20-2014 07:55 AM)jcarerra Wrote:  With the specs as written, and assuming they mean EPAP/minPS/maxPS, they essentially specify a fixed bi-level machine...
one pressure (settable) for EPAP,
one pressure (Settable) for IPAP (EPAP + PS).

I am concerned that the DME may not feel "legally covered" to give you an Adapt or even a VPAP of any sort.

May need to add something like "Backup RR automatic" or better yet add specific model desired.

Having a range for EPAP (even a small range) will give us more information (namely, we will be able to see when the machine is raising EPAP to better treat or avoid obstructive events).

Having a range for EPAP might also allow a lower average EPAP pressure, which might lower the amount of air swallowing which occurs. Excessive air swallowing often becomes a major issue when the PS automatically increases while treating centrals.

Of the machines which have backup rate capability, I think only the ASV machines can be set to auto-adjust EPAP within a range. For example, I think the Non-Invasive Ventilator machines like the S9 VPAP ST-A and PRS1 BiPAP AVAPS automatically adjust PS to maintain a target alveolar tidal volume (needed when muscle weakness and lack of strength to breathe is an issue) and can treat central apneas, but can use only fixed EPAP.

I think the ResMed S9 VPAP Adapt would likely be quieter than the PRS1 BiPAP autoSV Advanced, and would allow your present humidifier to be used.

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: 10-20-2014 12:36 PM by vsheline.)
10-20-2014 11:57 AM
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