This one test could answer all of your questions. If you left ventricular function is normal, then your symptoms are caused by a non-cardiac condition. If your left ventricular pumping function is decreased, then you would need to speak to your physicians for further recommendations and information. I was not the physician who answered your original question, but I don't know enough of your history to comment on the issue of pericardial disease. I hope you find this information useful.
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Only your physician can provide specific diagnoses and therapies. Please feel free to write back with additional questions. The Heart Center website contains a directory of the cardiology staff that can be used to select the physician best suited to address your cardiac problem. Information contained within this forum is intended solely for general educational purposes and is not intended nor implied to be a substitute for professional medical advice relative to your specific medical condition or question. Only your physician can provide specific diagnoses and therapies.