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Dr. Salome Zhvania answered : 7 years ago
blockage more then 75% has to be opened according to American and European recomendations. The thing that collaterals are formed and he doesn't have symptoms, on the one hand is good, it's not an amergency situatuon, but on the other hand as some diabetics can't feel pain as hard as healthy people, the real clinical picture can hide and so better not to loose time!. As for the choice between bypass surgery and angioplasty, there are some criteria (number of vessels blocked, which vessels are blocked, risk of thrombosis and so on...), according to which the cardiologist-surgeon decides which one is better for each patient.