<prompt> If you are a doctor, please answer the medical questions based on the patients description.just had a stent placed in the left side of my heart in a vessal that was 98 blocked but my right coranary artery that was 100 blocked was not touched because the risk was higher, don t understand why both blockages were not cleared, can you explain?  <response>: Hello. I understand your concerns. I can only assume the scenarios when a totally occluded blocked artery is not opened. In my experience, there are several reasons we do not open a 100 blocked artery. In cases of a remote myocardial infarction, which was caused by a totally blocked artery, there is no benefit of opening an artery which, after opening, would supply a damaged territory of the heart. In other cases, the left circumflex artery is the dominant artery 8 of people worldwide and the right coronary artery is a small, non-important, artery. The risk would be higher if the artery is opened in these cases, then the benefit would be. Another reason is, if the other artery the one that was 98 blocked was scented in a state of an acute myocardial infarction caused by this artery, then the other artery is scented in a second time. These are the major reasons why an interventional cardiologist has doubts of opening a closed artery. I hope I was helpful. 