Dr. K K Aggarwal, President Heart Care Foundation of India and Group Editor in Chief MEDtalks, will discuss about intervention process in a patient whose artery is 100% blocked. He will discuss a case with stable angina and angiography shows single vessel right coronary artery 100% blocked. In chronic total occlusion, stenting is warranted when the following three conditions are met: The occluded vessel is responsible for the symptoms. The myocardial territory of the occluded artery is viable. The likelihood of success is more than 60% with estimated rate of death and heart attack less than 1% and 5% respectively.