A design approach is a general philosophy that may or may not include a guide for specific methods. Some are to guide the overall goal of the design. Other approaches are to guide the tendencies of the designer. A combination of approaches may be used if they don't conflict.
Bradycardia can be caused by: 1  Changes in the heart that are the result of aging. 2  Diseases that damage the heart's electrical system. These include coronary artery disease, heart attack, and infections such as endocarditis and myocarditis. 3  Conditions that can slow electrical impulses through the heart.
How Bradycardia Is Detected. You may be prompted to find out if you have a slow heart rate if you have certain symptoms. However, some people with the condition donât have any symptoms. Typical symptoms include excess fatigue â to the point of feeling exhausted from walking or climbing stairs â and lightheadedness.