I am suggesting that he may not have had sleep apnea. He didn't mention snoring, which is the usual accompaniment to that, and they didn't treat him with a CAP machine. My hubs had sleep apnea, and the same pattern of stopping sleeping. They gave him a machine and then an operation on his nose! But all his other tests (blood pressure, FB, cholesterol, etc are so perfect it makes me a bit jealous, esp since he is actually obese!)
So, I'm suggesting the OP's doctors did a sleep test and determined that he needed a pacemaker (much more drastic than a CAP machine) because it was not your classic sleep apnea.
And then I wondered whether the mysterious DIB might be related to autonomous nerve damage. So I found the posting very interesting! That was my train of thought
Agreed, both disease areas are very interesting, but (most often) not interrelated.
With regards to sleep apnea, then you mainly have 3 types: obstructive, central, and a mix of the two.
Obstructive sleep apnea (OSA) is the most common, around 80% of all cases. It is caused by a physical blockage of the airway, usually when the soft tissue in the rear of the throat collapses and closes during sleep. Patients of this type are often overweight/obese. And yes, you see many T2s here for this reason (a physical blockage due to the overweight, not due to the T2 itself...) As OSA is due to a physical blockage, then one of the most frequent symptoms is laud snoring.
In
Central Sleep Apnea (CSA) the airway is
not blocked, but the brain fails to signal the muscles to breathe. Reason why snoring is not necessarily observed at all. When CSA is caused by heart failure, the patient has slow blood flow as well as erratic breathing and consequently awakens due to lack of oxygen. You can not fix that with a continuous positive airway pressure device (CPAP). Apart from those patients, about half of those suffering from CSA can be managed on CPAP alone.
OSA patient has a mechanical problem, one that almost always can be corrected by CPAP, potentially combined with weight loss and/or a surgical tissue adjustment. Treatment of the CSA patient is more challenging because the signal to the body to inhale is not being transmitted from the breathing center in the brain. So despite the difference in the root cause of each type, in all three, you can observe the same symptom namely that people with untreated sleep apnea stop breathing repeatedly during their sleep. As you mention the example about your own hubby, then many different root causes can be behind the sleep apnea. And depending on root cause, then the right treatment is different. Even children can suffer from sleep apnea, so its not just old, obese T2s. And for the OP, then luckily he reacted on his sleep apnea, which was actually a symptom due to his serious heart condition. Or rightfully, as often is the case with us lazy men, it was his wife that was his saviour and sent him to the doctor to get the problem fixed!
Ruth, I have also loads of statistics/studies to pull from if you want us to dive into the dead in bed syndrome.