Hi. Thank you for sharing your personal experience with us and for your question -- it is a good one. I know that cardiologists have specific guidelines that they follow that help them determine what treatment to recommend for heart blockage. I think the guidelines, if I am remembering correctly, says that a stent is recommended for a blockage of 70% or greater. For blockages of less than 70 percent, the first course of action is to try other treatments, such as what your doctor has prescribed for you. It also may be a good idea to run this question past your physician, who may be able to give you a more specific explanation as it pertains to you. Now, I also have a comment about your second question. If you are experiencing symptoms that you are concerned about, it is best to contact your physician for further guidance. It has been a few days since you have posted here. I am curious how you are doing today? Have you talked to a doctor? John. heart-failure.net community moderator