### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
sir my father has an heart problem ........ he had gone through all tests for it n angio gram test was also done in KGH doctors suggest him that they need to put two stunts ......... we are thinking to visit putaparthi for the treatment can i get any sort of advice from u n doctors said they are blocked 70-80% so asked us to to be done by 15-20 days

### output:

Hi and pleased to answer you about your father stent option. Coronary angioplasty is one of the therapeutic options proposed to the patient after coronary angiography. The degree of stenosis is a primordial argument, but it is not the only one. Even if coronary stenosis is considered significant (> 70%), the decision to perform coronary angioplasty should correlate to other factors: - The clinical status (chest pain) - electrical modification (st+ and st-) - enzymatic elevation - Evidence of myocardial ischemia provided by the upstream examinations and which often motivated coronary angiography (stress test, scenography). The indications for coronary angioplasty have been widened by the effectiveness of anti-aggregation treatments (reduction of the risk of thrombosis) but also technical advances (in particular active stents). At present angioplasty is often an alternative to surgery. Decisions and discussions are made on a case-by-case basis to enable the patient to benefit from the best therapeutic option for myocardial revascularization. For complex cases (multi-truncular, diabetic ...), cardio logical societies have developed decision-making tools such as EuroS core or Syntax Score. These scores make it possible to choose objectively the therapeutic option with the best "benefit-risk" for the patient. The risks associated with the prolonged antiaggregant combination associated with active stents lead them to prefer in many cases bare metal stents, which require only a much shorter anti-aggregation treatment.  Active stents are of interest only to selected patients, in case of monotone lesions with a high risk of restenosis with lesions more than 15 mm or diameter of the vessel reached less than 3 mm or diabetes. Or in the case of first instent-restenosis of a bare metal stent, total coronary occlusion, stenosis of left unprotected common core or multi-renal lesions with a high risk of restenosis, Angioplasty is preferred to surgery (CABG or Coronary artery bypass grafting) after medico-surgical discussion. I urge you to accept the suggested method by your doctor