Angioplasty has an initial success rate greater than 90%. Restenosis, which is the renarrowing of the artery after successful angioplasty due to scar tissue formation, occurs in ~40% of patients, requiring repeat angioplasty. Angioplasty is only performed as a stand alone procedures for certain type of coronary blockages. It is however used as an adjunct to most other procedures such as stenting or atherectomy. Usually, powerful blood thinners such as heparin and platelet inhibitors such as aspirin and glycoprotein IIbIIIa inhibitors are used with various percutaneous interventions.