How does marijuana affect someone with atrial fibrillation?

Despite popular belief, marijuana is a stimulant. It raises your heart rate, and can cause anxiety and hypertension. I have atrial flutter (similar to atrial fibrillation). My doctor told me to stay away from marijuana, but I was skeptical so I did my own test. I took my blood pressure and pulse before and after use. My blood pressure remained about the same but my pulse went from 82 to 120 and stayed above 100 for at least a half an hour, all while I was sitting on the couch. Considering that atrial fibrillation causes tachycardia (rapid heart beat), I don't think the ganja will help your situation. We all react differently to substances, but I would recommend refraining from daily use.