Percutaneous coronary intervention is a technique that uses a percutaneous catheter to insert a small balloon into the lumen of a blocked coronary artery and place a stent to re-open the blood flow. Along with the improvement of technology, the development of new coronary stents has helped to solve the stenosis in the coronary arteries, helping to improve myocardial perfusion under all conditions of strenuous activity of the heart. patient.