So, atrial fibrillation, which is this irregularity of the heartbeat, often has a focus at the back of the heart, which is like a little electrical short circuit. And if it keeps happening, there’s a procedure where you can thread a little electrical wire up from the top of the leg into the heart, which sounds terrible, it isn’t at all dangerous, and you can find where the irritable bit of electricity is coming from, and give it a micro zap, a little burn, and in about 70 or 75% of cases, that can fix atrial fibrillation, potentially forever.
