Defibrillators are cheap and easy to use Defibrillators work miracles if used in the first two minutes after an attack. We calculate that my son was defibrillated about four minutes after his heart attack. Not soon enough. Defibrillators are cheap and easy to use. Here are some news articles.
Children can defibrilate .
They have a view heart attack as an electrical process akin to wave theory. I have written a simplified introduction to Spiral Waves . After my introduction, you might like to see the technical literature. You could do a search on cardiac spiral waves . Clinicians are accustomed to worn-out old people's hearts where the heart's physical condition indicates its problems.