What causes bradycardia?
Bradycardia can be caused by: • Changes in the heart that are the result of aging. • Diseases that damage the heart’s electrical system. These include coronary artery disease, heart attack, and infections such as endocarditis and myocarditis. • Conditions that can slow electrical impulses through the heart. Examples include having a low thyroid level (hypothyroidism) or an electrolyte imbalance, such as too much potassium in the blood. • Some medicines for treating heart problems or high blood pressure, such as beta-blockers, antiarrhythmics, and digoxin.
