Re: Any Clues?
Posted: Sun Jul 12, 2009 7:49 pm
Lee Lee and others - I should probably point out that my experience with CPAP may be unique, in that I have UARS rather than OSA. My diagnostic study had 1 obstructive apnea, 2 hypopneas, 1 central apnea - and 148 respiratory effort related arousals. I have had years of bad sleep, but very little effect on my general health beyond fatigue, and some things that may be connected such as irritable bowel and sensitivity to cold. I am fatigued, easily distracted, and irritable, but my health is quite good. I actually have naps every once in a while where I sleep well (seems to be a combination of neck position and low-humidity) and I know I don't have any irreversible brain/neurological problems. Feeling really good is a possibility, and that is what I want to get. I know irreversible problems from apnea may explain why other people are still tired despite CPAP, but it is not a good explanation for me.
My titration studies demonstrated huge amounts of sleep fragmentation at every pressure that was tried in my two titration studies so far (6 - 18 cm). There was never any evidence that CPAP made my sleep better. It may have fixed by breathing issues, but at the expense of some other part of my breathing system. What is truly intriguing, and what no one has attempted to explain to me, is why I have less disruption during REM sleep than during non-REM. This is completely contrary to the general ideas about how CPAP helps your sleep breathing, as my most recent study opined that at the prescribed pressure, I had "REM sleep in the supine position" as if this is the end-all-and-be-all of CPAP. This and other issues convinces me that CPAP is blunt treatment, a one-size-fits-many-but-not-all treatment.
Lee Lee - did you ever see the hypnogram from your husband's study? Did it show a lot of sleep fragmentation (that is, frequently changes in sleep stage back to lighter stages of sleep) despite what were described as "effective" pressures? How did he feel after his titration study? Did he ever have a situation where he felt an improvement? The data from the CPAP machine is important, but the sleep staging is a very important part of the picture, too.
My titration studies demonstrated huge amounts of sleep fragmentation at every pressure that was tried in my two titration studies so far (6 - 18 cm). There was never any evidence that CPAP made my sleep better. It may have fixed by breathing issues, but at the expense of some other part of my breathing system. What is truly intriguing, and what no one has attempted to explain to me, is why I have less disruption during REM sleep than during non-REM. This is completely contrary to the general ideas about how CPAP helps your sleep breathing, as my most recent study opined that at the prescribed pressure, I had "REM sleep in the supine position" as if this is the end-all-and-be-all of CPAP. This and other issues convinces me that CPAP is blunt treatment, a one-size-fits-many-but-not-all treatment.
Lee Lee - did you ever see the hypnogram from your husband's study? Did it show a lot of sleep fragmentation (that is, frequently changes in sleep stage back to lighter stages of sleep) despite what were described as "effective" pressures? How did he feel after his titration study? Did he ever have a situation where he felt an improvement? The data from the CPAP machine is important, but the sleep staging is a very important part of the picture, too.