Other causes of palpitations can be detected by the holter and possibly by electrophysiologic testing using a catheter that is placed into the heart through the veins in the groin. This catheter-based technique, if indicated by the Holter results, can not only diagnose, but sometimes treat and cure these arrhythmias. As I mentioned above, this is a benign condition. Saying it's not harmful doesn't make it go away, but if in fact this is the problem, you need to understand that it's not dangerous. I recommend you discuss the findings of the Holter and Echocardiogram with your doctor in order to arrive at the appropriate plan of action.
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