Apologies warthog, I was not trying to make a cause and effect of my exercise to my SCA.
Rather the point that I was attempting to make is that DESPITE much exercise and the resultant great plumbing, the risk of electrical problems was still there.
Which is exactly the situation I was in. Great plumbing. But not so the electrics. So it is worth checking out the electrics as there may be a hidden risk unassociated with fitness. There are a range of arrhythmias that give warnings. If it happens to be an SCA it will almost certainly be followed by death.I am not particularly concerned given my level of exercise. Far better that I do than don't, for my physical and mental health imo.
Even with early CPR, outside of hospital the chances of survival are not good. A statement I've heard in information sessions and used in submissions to relevant inquiries is "for every minute without defib your chances of survival drop 10%". Glib and probably lacking in scientific rigour but based in reality. And even if survived, there is usually residual damage to heart muscle and/or brain.Good quality CPR can maintain enough perfusion of the brain for some time prior to defibrillation. Mechanical CPR even more so.
Yes unlikely to recieve both outside of hospital quickly.
I am not talking about rare events. In Australia SCA's account for 30,000 deaths each year. Survivors are rare. Only 27% attended to by ambos survive due to response times of 6 to 8 minutes. Only 7% to 10% of sufferers survive overall.
SCAs do not give fair warning, hence the imperative to have relevant tests regardless of fitness levels.