Chronic stable angina (CSA) is one of the most common symptoms experienced by persons with heart disease. CSA is defined by the physical symptoms resulting from blockage of blood flow through the coronary arteries. Anginal symptoms generally occur as a result of increased demands for blood flow, such as with physical activity, eating a large meal, emotional upset or exposure to cold weather. Symptoms vary widely and can include discomfort in the chest, arms, back and jaw, shortness of breath and a sense of increased fatigue. Many patients with chronic stable angina do not describe their symptoms as “pain” but have a sense of burning, tightness, pressure or heaviness in the chest and upper body. Chronic stable angina is usually relieved by stopping the activity that precipitated the symptoms, by resting, and by the use of Nitroglycerine. Anginal symptoms are called “chronic and stable” when they occur in a predictable fashion and are in response to “triggers” such as those mentioned above.