I have had severe SA for several years, I've been told that it can cause pulmonary hypertension because of the way it puts stress on the pulmonary artery when apnea s occur , has anyone else heard this and/or diagnosed w/ this?
I also have a deviated septum from many broken nose injuries. I had it checked out and the Dr. wasn't concerned, but thinking about getting a second opinion. It causes me to breathe from my mouth. I think it might worsen my SA.
Any input is appreciated.
Aloha, Earl

I can't answer your question about PH and OSA. I have COPD and know that COPD can cause secondary PH so it wouldn't surprise me if long-term UNTREATED OSA couldn't also be a contributing factor to secondary PH.

However, if you are sleeping well w/a full face mask it doesn't matter if you mouth breathe or nose breathe. That is the idea behind using a full face mask. I have to use a full face mask because I need a high emough pressure that some air manages to escape thru my lips in a manner I call "the lip flutters". Not the same as actually mouth breathing.