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.
For symptomatic patients, the healthcare team must determine the cause of bradycardia. In many cases, bradycardia results from use of other drugs, specifically other antiarrhythmicsâfor instance, beta blockers and calcium channel blockers. So those drugs may need to be withheld temporarily until their effects wear off.