I wrote1 ten days ago about the high number of apneic events that my CPAP machine had been recording. I had two hypotheses for these high numbers: the mask is reaching the end of its life, and the lack of amitryptiline.
Well, today I reviewed the numbers for the past week, and whilst they're not quite as bad as those from early October, they're still far too high. I've been taking amitryptiline every night, so I can see that if it did have an effect, it's only minor. I'm going to order the new mask tomorrow, as we're now in November, and last year's mask was bought in November: I'm entitled to a free mask once a year. I don't think that the mask will have much of an effect either.
A third hypothesis occurs to me: maybe my weight loss is effecting the apnea. Since writing that blog, I've dropped another half kilo from my weight. I looked at my records and saw that I was nearly the same weight in May 2023: I had lost weight in a similar manner to that of today (although I soon started putting it back on), but there seems to have been no effect on the number of apneic events. As I suffer from central sleep apnea, which is caused by the brain failing to send proper signals to the muscles that control breathing, it seems unlikely that weight would have any effect.
I shall try to find a 'sleep doctor' whom I can consult.
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[1] 2024
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