<s>[INST] Ive recently had investigations such as an ECG after having been diagnosed with high blood pressure which was underlying for years. My doctors mentioned something about extra muscle forming around the heart from it working harder for a long time. Could this extra muscle be serious? [/INST] Hello, I have gone through your query. Thanks for using Chat Doctor. I would like to know your exact report of echo and ECG. This term extra muscle around heart is uncommon term and I need to know what exactly it is! I can presume that there may be thickening of walls of heart due to long-standing untreated Hypertension what we call as LVH. If it is the same then what you need is good control of BP with regular medicines. I would be glad to guide you if you send me the exact reports best wishes Chat Doctor.  </s>