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Air Curve ASV
#1
Hi!
90% of my apneas are CSA and I've been told to switch from my current S9 AutoSet to ResMed's AirCurve ASV.
Does anyone now if it is realy effective in treating CSA?
S9 has been very easy to use, the Air Curve is similar?
Any pros/cons?
Many many thanks,
JGG1945

Thanks
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#2
The ASV is used to treat central apnea. It has three pressures. IPAP, EPAP, and a 3rd, timed pressure pulse that acts like an artificial ventilator.
So, yes, the ASV will treat central apnea.

The AirCurve series (sometimes called the A10 series) is the next current generation of ResMed's machines.
S9 is the prior generation. Your S9 Autoset cannot treat central apnea.

There are pros and cons as far as the series, The humidifier is integrated in the A10. There is a cellular modem built into the A10.
You can Google " ResMed AirCurve ASV" and review it.
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#3
Yes, that's what it is for.

But before you invest major personal bucks, tell us more about your circumstance.

What is your AHI reading doing these days? Of that, how many are OSA, Hypop, and CAI?

What are your low, average, and 95% pressure readings?
The one thing I notice is you say your low pressure is 4. That's normally too low, especially when you're using a nasal or full face mask. Conversely, the max of 10 may not be high enough for you.

If the pressure ranges are off, you could be experiencing CA events that are not actually CA's in the sense you may be thinking.

So how about a little more data?
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#4
(04-07-2015, 04:57 PM)retired_guy Wrote: Yes, that's what it is for.

But before you invest major personal bucks, tell us more about your circumstance.

What is your AHI reading doing these days? Of that, how many are OSA, Hypop, and CAI?

What are your low, average, and 95% pressure readings?
The one thing I notice is you say your low pressure is 4. That's normally too low, especially when you're using a nasal or full face mask. Conversely, the max of 10 may not be high enough for you.

If the pressure ranges are off, you could be experiencing CA events that are not actually CA's in the sense you may be thinking.

So how about a little more data?

Many thanks for your reply.
Data follows:
Max pressure: 9.0
Median press.: 7.4
95th perc.: 8.9

Central apneas per hour: 9.0
Obstructive: 1.5
Apnea Index: 11.0
Hypoapneas: 2.1
AI: 13.1

And many thanks again.

(04-07-2015, 04:54 PM)justMongo Wrote: The ASV is used to treat central apnea. It has three pressures. IPAP, EPAP, and a 3rd, timed pressure pulse that acts like an artificial ventilator.
So, yes, the ASV will treat central apnea.

The AirCurve series (sometimes called the A10 series) is the next current generation of ResMed's machines.
S9 is the prior generation. Your S9 Autoset cannot treat central apnea.

There are pros and cons as far as the series, The humidifier is integrated in the A10. There is a cellular modem built into the A10.
You can Google " ResMed AirCurve ASV" and review it.

Many thanks.
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#5
(04-07-2015, 05:08 PM)JGG1945 Wrote: Many thanks for your reply.
Data follows:
Max pressure: 9.0
Median press.: 7.4
95th perc.: 8.9

Central apneas per hour: 9.0
Obstructive: 1.5
Apnea Index: 11.0
Hypoapneas: 2.1
AI: 13.1

And many thanks again.

That does make a decent case for moving to the ASV unit. The numbers aren't really all that bad, but increasing pressure could actually increase them rather than reduce them. I think narrowing of the range by raising the bottom end might be a fine thing to do.

If it were me I would be tempted to go against everything I hold dear and change my Auto settings to CPAP fixed of 9 for a night or two. I would not use ramp, and I would not use EPR greater than 2. If the CA's did not drop when I did this, then I'd reach for my checkbook and summon up a Resmed ASV unit.

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#6
(04-07-2015, 05:22 PM)retired_guy Wrote:
(04-07-2015, 05:08 PM)JGG1945 Wrote: Many thanks for your reply.
Data follows:
Max pressure: 9.0
Median press.: 7.4
95th perc.: 8.9

Central apneas per hour: 9.0
Obstructive: 1.5
Apnea Index: 11.0
Hypoapneas: 2.1
AI: 13.1

And many thanks again.

That does make a decent case for moving to the ASV unit. The numbers aren't really all that bad, but increasing pressure could actually increase them rather than reduce them. I think narrowing of the range by raising the bottom end might be a fine thing to do.

If it were me I would be tempted to go against everything I hold dear and change my Auto settings to CPAP fixed of 9 for a night or two. I would not use ramp, and I would not use EPR greater than 2. If the CA's did not drop when I did this, then I'd reach for my checkbook and summon up a Resmed ASV unit.
Many thanks.
A couple of clarifications:
1. I didn't get the "narrowing of the range by raising the bottom end" idea.
2. Why do you think an EPR of 2 would reduce the CA's?
By the way, I don't use ramp because I prefer the fuller breathing feeling vs. the slower alternative (it gives me a suffocation feeling).
I started with the S9 because I was increasingly sleepy during the day, and with a feeling of tiredness, even when driving.
That scared me and I got involved with the diagnosis & treatment.
Since then I am feeling much better during daytime.
If I could eventually reduce the CA's that would be great.
Many thanks again for your advice and support.
Best regards.
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#7
(04-07-2015, 06:10 PM)JGG1945 Wrote:
(04-07-2015, 05:22 PM)retired_guy Wrote:
(04-07-2015, 05:08 PM)JGG1945 Wrote: Many thanks for your reply.
Data follows:
Max pressure: 9.0
Median press.: 7.4
95th perc.: 8.9

Central apneas per hour: 9.0
Obstructive: 1.5
Apnea Index: 11.0
Hypoapneas: 2.1
AI: 13.1

And many thanks again.

That does make a decent case for moving to the ASV unit. The numbers aren't really all that bad, but increasing pressure could actually increase them rather than reduce them. I think narrowing of the range by raising the bottom end might be a fine thing to do.

If it were me I would be tempted to go against everything I hold dear and change my Auto settings to CPAP fixed of 9 for a night or two. I would not use ramp, and I would not use EPR greater than 2. If the CA's did not drop when I did this, then I'd reach for my checkbook and summon up a Resmed ASV unit.
Many thanks.
A couple of clarifications:
1. I didn't get the "narrowing of the range by raising the bottom end" idea.
2. Why do you think an EPR of 2 would reduce the CA's?
By the way, I don't use ramp because I prefer the fuller breathing feeling vs. the slower alternative (it gives me a suffocation feeling).
I started with the S9 because I was increasingly sleepy during the day, and with a feeling of tiredness, even when driving.
That scared me and I got involved with the diagnosis & treatment.
Since then I am feeling much better during daytime.
If I could eventually reduce the CA's that would be great.
Many thanks again for your advice and support.
Best regards.

By the way I noticed you use a nasal pillow.
Any side effects?
I use a nasal mask (no mouth leaks) and I wondered if a nasal pillow would be less intrusive and allow easier movements while sleeping.
Is that so?
My concerns might be that, perhaps, I could have soreness or nasal irritation caused by the air flow, and the risk of ot keeping the nasal pillow in place when I move during sleep.
Otherwise it seems a much lightier and simpler device.
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#8
(04-07-2015, 06:18 PM)JGG1945 Wrote: By the way I noticed you use a nasal pillow.
Any side effects?
I use a nasal mask (no mouth leaks) and I wondered if a nasal pillow would be less intrusive and allow easier movements while sleeping.
Is that so?
My concerns might be that, perhaps, I could have soreness or nasal irritation caused by the air flow, and the risk of ot keeping the nasal pillow in place when I move during sleep.
Otherwise it seems a much lightier and simpler device.

I initially used a nasal mask, then tried a ffm, and finally against the advice of my DME went to the P10 pillow mask. Best thing I have done for my cute little body since .......... well, just since.

Because of the minimalistic nature of the pillows, because of the almost complete silence of the exhaust of the P10, and for lots of other becauses I very highly recommend them.

In fact, it is only a matter of time until everyone uses the P10.

Resistance is futile.
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#9
Hi JGG1945,
WELCOME! to the forum.!
The P10 is great if you are looking for a mask that is very light and minimalist.
Hang in there for more responses to your post and much success to you as you continue your CPAP therapy and good luck with the switch to the ASV machine.
trish6hundred
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#10
(04-07-2015, 04:42 PM)JGG1945 Wrote: Hi!
90% of my apneas are CSA and I've been told to switch from my current S9 AutoSet to ResMed's AirCurve ASV.

Who told you, some internet expert or your doctor?

Would you be willing to upload and share a copy of you SD card data? http://www.apneaboard.com/wiki/index.php..._your_data

Sometimes, you can lower your max pressure and trade a little obstructive apnea for lower centrals. Have you done much tinkering with your pressure settings?
Get the free SleepyHead software here.
Useful links.
Click here for information on the main alternative to CPAP.
If it's midnight and a DME tells you it's dark outside, go and check it yourself.
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