[dreamcompiler]

> Exposure to high voltage can cause asystole directly

Yep. This is what defibrillation is. When you use a defibrillator, you're shocking the heart into asystole in the hopes that it will restart itself. Shocking an already "flatlined" heart will not restart it, contrary to what many movies would have you believe.

> The SA nodes are particularly vulnerable; patients may effectively give themselves an SA node ablation

This I did not know. Wow!