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Central Apneas Occurring with CPAP use - Sleepster - 01-25-2014
A new user sent me this question via PM and asked me to post it here:
RT/APAPuser Wrote:I am a 14yr user of Auto-CPAP and an RT specializing in sleep dme. Requesting input on symptoms of blurred vision, "heavy head" feeling in morning, diminished hearing.... have hypothyroid but on Armour and levels are good. Concerned that nerve damage could have occurred. Have lost 50 lbs in past 4 years (APAP pressure down accordingly with AHI < 1). Too many symptoms occurring over past year. Wonder if CPAP use is at this point causing more harm? Going to stop for awhile (but will miss the humidified/filtered air!) Used to be on 10-12cmH20 but gradually reduced to 4-7cmH20. Any thoughts?
RE: Central Apneas Occurring with CPAP use - Sleepster - 01-25-2014
If your AHI is less than 1 on a pressure range of 4-7 I would see what it's like at a fixed pressure of 4.
If the CPAP machine were harming you you'd see an elevated CA index that would raise your AHI, so no, I do not believe the CPAP machine is doing you any harm.
Are there periods of time where your AHI per hour is higher than normal? I don't know if ResScan can be used to answer this question, but I do know that SleepyHead can.
RE: Central Apneas Occurring with CPAP use - me50 - 01-25-2014
All I can say is that I wouldn't stop using cpap therapy because your AHI is low but it is most likely low b/c you use the cpap machine. The repercussions of not using cpap is not something I want to chance (including death).
RE: Central Apneas Occurring with CPAP use - Bladskinner - 01-25-2014
We'll I hope u go to the doc as cancer or diabetes come to mind.
RE: Central Apneas Occurring with CPAP use - Lukie - 01-25-2014
I'm thinking glaucoma or increased eye pressures. All CPAP users need to get their ocular pressures regularly. Signs of glaucoma can be blurry vision. The heavy head feeling might be from the circadian flow of fluids up to the head and neck during the night. My pressures are up in my eyes and my hands are swollen in the morning since being on CPAP. The benefits far outweigh these symptoms. The CPAP is keep ing me breathing.
RE: Central Apneas Occurring with CPAP use - RT/APAPuser - 01-26-2014
(01-25-2014, 05:18 PM)Sleepster Wrote: A new user sent me this question via PM and asked me to post it here:
RT/APAPuser Wrote:I am a 14yr user of Auto-CPAP and an RT specializing in sleep dme. Requesting input on symptoms of blurred vision, "heavy head" feeling in morning, diminished hearing.... have hypothyroid but on Armour and levels are good. Concerned that nerve damage could have occurred. Have lost 50 lbs in past 4 years (APAP pressure down accordingly with AHI < 1). Too many symptoms occurring over past year. Wonder if CPAP use is at this point causing more harm? Going to stop for awhile (but will miss the humidified/filtered air!) Used to be on 10-12cmH20 but gradually reduced to 4-7cmH20. Any thoughts?
Thanks for input! I changed settings to 4-5cmH20 and slept well - AHI was .4 over 9 hrs. No heavy head upon awakening. Want to add that weight loss was achieved through continued healthier diet and exercise over a 4 yr period. Opthalmologist saw significant changes in distance vision.He didn't mention glaucoma but will check with him! Previous 4 yrs virtually no changes in vision. Also experiencing foggy memory. Will have sugar levels checked although have never had problems. Just thought it may be neurological in nature. Perhaps in need of specific mineral/vitamin supplements. ? I love my CPAP and am passionate about helping others with CPAP. Does anyone use "manual" mode (for humidity) on S9 ResMed Auto?
RE: Central Apneas Occurring with CPAP use - c0reDump - 01-26-2014
(01-26-2014, 03:19 PM)RT/APAPuser Wrote: Does anyone use "manual" mode (for humidity) on S9 ResMed Auto?
I do, at a setting of '5.0' last night. I do not think there is an automatic humidity control with my S9+H5i configuration (I do not have a ClimateLine hose).
My vendor originally suggested a setting of no more than 1.5 (what he uses), but that was much too dry for me with my full-face mask / mouth breather. He uses nasal pillows, so perhaps 1.5 is a better humidifier settings for that style of mask.
Anyhow, I'm new to CPAP so I'm still experimenting with the humidifier settings. I suspect the best humidifier setting is tightly coupled to the humidity level of the room -- if you have an automatic setting, then that sounds like it would take a lot of the guess-work out of the equation.
I'm pondering purchasing a regular free-standing humidifier to control the humidity of the bedroom --which would leave the bedroom at a constant humidity level, so I won't have to guess at the best H5i setting for the night.
RE: Central Apneas Occurring with CPAP use - trish6hundred - 01-26-2014
Hi RT/APAPuser,
WELCOME! to the forum.!
It's great to hear that you had such good results with the new pressure change on your CPAP.
CONGRATULATIONS on your weight loss.
RE: Central Apneas Occurring with CPAP use - RT/APAPuser - 01-27-2014
(01-26-2014, 03:54 PM)c0reDump Wrote:(01-26-2014, 03:19 PM)RT/APAPuser Wrote: Does anyone use "manual" mode (for humidity) on S9 ResMed Auto?
I do, at a setting of '5.0' last night. I do not think there is an automatic humidity control with my S9+H5i configuration (I do not have a ClimateLine hose).
My vendor originally suggested a setting of no more than 1.5 (what he uses), but that was much too dry for me with my full-face mask / mouth breather. He uses nasal pillows, so perhaps 1.5 is a better humidifier settings for that style of mask.
Anyhow, I'm new to CPAP so I'm still experimenting with the humidifier settings. I suspect the best humidifier setting is tightly coupled to the humidity level of the room -- if you have an automatic setting, then that sounds like it would take a lot of the guess-work out of the equation.
I'm pondering purchasing a regular free-standing humidifier to control the humidity of the bedroom --which would leave the bedroom at a constant humidity level, so I won't have to guess at the best H5i setting for the night.
I would definitely get a climateline tubing! One great benefit of your device! It can be placed in "manual" mode, then you can set your tube temperature to sustain and control temperature which will provide much improved "direct" humidity to your airway.The room humidifier will not benefit you when sleeping with your CPAP. I highly recommend tube setting of 86 and your humidity at least 4. Give it a try and I'm certain you'll benefit!
RE: Central Apneas Occurring with CPAP use - c0reDump - 01-27-2014
(01-27-2014, 05:16 PM)RT/APAPuser Wrote: I would definitely get a climateline tubing! One great benefit of your device! It can be placed in "manual" mode, then you can set your tube temperature to sustain and control temperature which will provide much improved "direct" humidity to your airway.The room humidifier will not benefit you when sleeping with your CPAP. I highly recommend tube setting of 86 and your humidity at least 4. Give it a try and I'm certain you'll benefit!
Hi RT, perhaps when it's time to purchase a new hose I'll get a ClimateLine, but 86 degrees sounds like it would be hot and muggy.