What causes multifocal pvcs, what is the treatment for multifocal pvcs, and how dangerous are they?

PVCs: For the most part, they're benign. They're premature ventricular contractions that arise from different sites in the ventricle. There's not overwhelming evidence that in healthy people with asymptomatic pvcs that they're at risk for anything bad happening, and most docs wouldn't treat people with asymptomatic pvcs. But if you have other heart problems, you should consult with your cardiologist.