My father us suffered from heart attack and all 3 nerves are blocked doctor has done operation (angioplasty) and place stint in the nerve 2 nerves are clear and the 3rd one is blocked and he said to done later But the pain is there in the chest it is because of pumping and beating to bring back his life How to solve it and what food does he take What precautions he have to take ? And how many months he have to take to recover Is there any problem in future Help me.