How is coronary heart disease treated?

Medically. Medical treatment is the most important. Drugs to lower cholesterol and treat elevated blood pressure are essential. Aspirin and other anti-clotting drugs are key. Beta blocking drugs and angiotensin inhibiting drugs are also important. Invasive procedures such as angioplasty, stents and bypass surgery are best reserved for patiens with unstable disease. All patients need complete medical rx.
Many ways. Some patients are treated without medicine, and merely have to exercise, watch their diet and so forth. Most require some medications in addition to diet and exercise. Others require more - an angioplasty and a stent, or even a bypass. Talk to your doctor to determine what is the best way for you to be treated.