I just started using the APAP machine for 2 nights and got a few problems which I am not sure if they are common ?
1) On both nights , I woke up twice ( approximately 2 hours apart) due to excess air being pumped into my open mouth.
2) Each time, audible noise was heard as air escaping the mouth area of the mask . I tightened the straps a bit and went back to sleep each time .
( the average pressure during each night was 5. cm H2O . My machine had been setup for 5 to 20 cm H2O range)
3) The baseline AHI = 29.6 ( i.e. AHI at the start of treatment)
The AHIs of the first 2 nights were : 20. and 12. , respectively.
a) Do I expect these wake-ups at the beginning of the treatment ?
b) How can I avoid this mouth breathing under the full mask ?
c) Apart from a dry mouth in the morning, is there any harm done if one breathes through the mouth under the full mask ?
07-30-2015, 03:26 PM
(This post was last modified: 07-30-2015, 03:27 PM by PaytonA.)
The wake-ups are not all that unusual at the beginning of treatment.
You might try a chin strap in conjunction with your full face mask.
Apart from dry mouth, there should be no problem with mouth breathing with a Full Face Mask. Dry mouth, however, is not particularly good for your oral health.
The mouth breathing with a FFM will not negatively affect your therapy since it will not reduce your effective pressure. The same is obviously not true for nasal masks or pillows.
The mask leakage can be a problem. Would you please tell us what your leak rates are for the 2 days and also what the breakdown of your apnea events is. What percentage or how many of your events are obstructive apneas, central apneas, and hypopneas. Or what the OAI, CAI, and HAI are.
WELCOME! to the forum.!
Hang in there for more suggestions and answers to your questions and much success to you as you continue your CPAP therapy.