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CPAP triggering asthma/wheezing?
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holden4th Offline

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Machine: PR System One REMStar 60 Series Auto with Bluetooth
Mask Type: Nasal mask
Mask Make & Model: Respironics Dreamwear
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CPAP Software: SleepyHead

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Sex: Male
Location: Gold Coast Australia

Post: #11
RE: CPAP triggering asthma/wheezing?
You might find this article interesting.

http://www.healthguidance.org/entry/10912/1/Asthma-and-Humidity.html
06-26-2016 03:54 AM
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Kris the Crone Offline

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Joined: May 2016

Machine: ResMed AirSense 10 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus small
Humidifier: ResMed HumidAir S
CPAP Pressure: 8
CPAP Software: SleepyHead

Other Comments: 68, started CPAP/APAP June 9, 2016

Sex: Female
Location: Illinois, USA

Post: #12
RE: CPAP triggering asthma/wheezing?
(06-26-2016 03:54 AM)holden4th Wrote:  You might find this article interesting.

http://www.healthguidance.org/entry/10912/1/Asthma-and-Humidity.html

holden4th, "interesting" would be an understatement! A google search brought up many more articles about this. The consensus is that both low and high humidity (and low and high temperatures) can trigger asthma episodes, even for people with mild disease, like me. The suggested optimal humidity range for those with asthma is 35 - 50%. Such an eye-opener!

Most likely the air from the machine that I was breathing into my lungs was too humid, triggering asthma symptoms of wheezing, coughing and chest tightness. I am feeling a little better every day now that I am on the steroid inhaler, but airways are still twitchy, and I still have a wheeze if I push air out to empty my lungs. Have the coughing, too.

I am eager to start APAP again, with proper humidity. Looking at the ResMed Clinical Guide, it states that with Climate Control on AUTO, the humidity is 85%, which would be too high for me. If AUTO is 85% and in MANUAL there are 8 settings, 8 being the highest (85%, I assume), and if I want it between 35 - 50%, then 4 should be a good setting, right?

So, my current plan is:

-Keep with the steroid inhaler until breathing is healthy again.
-Have Pulmonary Function Test.
-See sleep doc/pulmonolgist, hear what he says. Show him my findings.
-Start APAP again with:
Climage Control in Manual
Level 4 humidity
Hose Temperature 72

"Perseverance, secret of all triumphs."
Victor Hugo
(This post was last modified: 06-26-2016 11:04 AM by Kris the Crone.)
06-26-2016 11:03 AM
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chill Offline

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Sex: Male
Location: Vancouver, Canada

Post: #13
RE: CPAP triggering asthma/wheezing?
As you are sensitive to the humidity, you might want to try "passover" humidification - fill the tank with water but turn the heating and hose heat off. This will provide a small amount of humidity. Quite a few people do this, it might be enough humidity for your comfort without triggering asthmatic symptoms.
06-26-2016 11:14 AM
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Kris the Crone Offline

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Machine: ResMed AirSense 10 Autoset
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CPAP Pressure: 8
CPAP Software: SleepyHead

Other Comments: 68, started CPAP/APAP June 9, 2016

Sex: Female
Location: Illinois, USA

Post: #14
RE: CPAP triggering asthma/wheezing?
Good idea, chill, and I might end up trying it. The problem is that not enough humidity is bad for people with asthma, too, and that might not be enough. 35% - 50% is the sweet spot, apparently.

This will be a trial and error process, and eventually I will know what works best for me. Today it is 82 degrees outside with a humidity of 64% and it feels absolutely oppressive out there. Took a short walk and felt awful.

I just can't imagine how anyone, even non-asthmatics, can breathe 85% humidity during PAP therapy (the AUTO setting on my machine) during sleeping hours (about 7 hours a night for me), and not feel like they were being waterboarded.

"Perseverance, secret of all triumphs."
Victor Hugo
06-26-2016 01:28 PM
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eseedhouse Offline

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Other Comments: Also on supplemental O2 at 3L/min. while sleeping.

Sex: Male
Location: Victoria, British Columbia

Post: #15
RE: CPAP triggering asthma/wheezing?
(06-26-2016 01:28 PM)Kris the Crone Wrote:  The problem is that not enough humidity is bad for people with asthma, too, and that might not be enough. 35% - 50% is the sweet spot, apparently.

You can get a cheap hygrometer and look at it at bed time. This will give you some idea of how much extra humidity you might need that night.

Ed Seedhouse
VA7SDH

I am neither a Doctor, nor any other kind of medical professional.

Actually you know, it is what it isn't.
06-26-2016 02:06 PM
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Kris the Crone Offline

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Posts: 61
Joined: May 2016

Machine: ResMed AirSense 10 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus small
Humidifier: ResMed HumidAir S
CPAP Pressure: 8
CPAP Software: SleepyHead

Other Comments: 68, started CPAP/APAP June 9, 2016

Sex: Female
Location: Illinois, USA

Post: #16
RE: CPAP triggering asthma/wheezing?
(06-26-2016 02:06 PM)eseedhouse Wrote:  You can get a cheap hygrometer and look at it at bed time. This will give you some idea of how much extra humidity you might need that night.

For sure! I'm on it, thanks.

"Perseverance, secret of all triumphs."
Victor Hugo
06-26-2016 02:29 PM
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