Hi....., Angioplasty and stent placement are common procedures to open arteries in the heart that are clogged. These procedures are formally known as coronary angioplasty or percutaneous coronary intervention..... Some stents are coated in medicine that slowly releases into the artery. This prevents the affected artery from closing. Other stents are made of fabric and are designed for larger arteries....Costs typically depends upon what type of stents are used... Consult Cardiologist.....