Hi thanks for Contacting HCM .. Here you have done angioplasty operation for ischemic heart disease ... You need to take life long anti platelet drug for preventing thrombus formation like aspirin .... You need to take low salt diet and low fat diet ... To prevent recurrent thrombus formation along with drug , regular exercise also done .... Smoking strickly avoided .... Fruits and green leafy vegetable taken more. .... Non veg food not taken .. You are mentioning some ECG abnormality ... I can give you more comment if you post your ECG picture. .. If constricting chest pain, sweating like symptoms occur than immediately Cosult ER (In future )... Take care ... Just now you can consult physician for examination...