I was recently diagnosed with SVT and am awaiting consult with cardiologist. I only have episodes when I am exercising. The last one I got was captured on the event monitor at a rate exceeding 230bpm. My husband is worried about my running and is scared I'm going to drop dead while running or something. I have tried to explain to him that everything I have read says this is not a life threatening issue. Anyone know of any reasons why I would have to stop running long distances? Is svt dangerous?