Causes
Heart block often occurs when there is underlying heart disease. The causes of heart block include:
- History of heart disease ( myocardial infarction , congestive heart failure , valvular problems, endocarditis )
- Hereditary heart defect
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Use of certain types of medications, such as:
- Beta blockers (eg, propranolol)
- Calcium channel blockers (eg, verapamil, diltiazem)
- Digitalis
