Conversation: The conversation between human and AI assistant.
[|Human|] i am 53 years old man. today confirmed that my main artery to heart is blocked. i was suffering some problems in my chest from a long time, but unfortunately ne day i suffered a sever pain in my chest and then i went to my doctor, after that i got my problem. now what can i do now?
[|AI|]  Hello. Thank you for your question and welcome to Chat Doctor. I carefully read your query. As I am let to understand, coronary angiogram was performed. Well, there are different strategies on treating a narrowed or totally blocked coronary artery. It would be really helpful to see the full report and the film. However, I am going to try to ad Chat Doctor.  First, there is angioplasty and stenting of the artery. If the time from onset of a severe, different from others, episode of chest pain to angioplasty is less than six hours, then the benefits on the heart muscle is the highest. I am, of course, referring to a totally closed coronary artery which caused an acute myocardial infarction. If there is a significant blockage to the main artery, and I am assuming that this is the left main coronary artery or the very beginning of the left anterior descendant artery, then the strategy of coronary artery bypass grafting (CABG) provides more benefit in aspects of lifespan and symptom ameliorating. If this is a blockage in the proximal or midden portion of the LAD artery, then angioplasty and stent placement would be the appropriate strategy, with safety and effectiveness.