Heart blockage you can do angioplasty putting a stent into your blocked vein. It is a small procedure.
Contrary to popular belief, heart blockage is actually caused by inflammation we put our body through several times a day through the years and decades. This is most often in the form of food that we take like deep fried, high heat cooking with vegetable oils, highly processed food with plenty of refined carbs. Beer falls into this category plus the alcohol that burdens our liver (that is so important in creating hormones, enzymes, detoxification and etc etc). Any imbalance screws up our system.
Smoking accelerates this as in veins to constrict after years of subjecting our body to the chemicals in cigarettes.
We cannot eliminate but can slow down heart blockages through good diet, healthy lifestyle and low mental stress.