Send the ECG Echo Holter and CAG report so that I can guide you further Dr Ashish Srivastava General Physician & Clinical Cardiologist

As far as age is concerned , My oldest patient was 86 when he underwent bypass. Today he is 89 plus and is regularly seen visiting the market to buy stuff and does so by walk! Whether Pace maker /stents or bypass cannot be commented about with out seeing the patient and angiography disc and holter reports. There are specific indications for both nothing is better than the  other.Meet a good doctor , ask him questions and proceed only if you are convinced