Primary prevention
Primary prevention measures include avoiding circumstances that increase vagal tone when possible, withdrawing or decreasing the dose of AV-nodal blocking agents, controlling chronic cardiovascular diseases, and aggressively treating the acute coronary syndrome by restoring blood flow. During procedures, reassurance and avoidance of pain also reduce vagally mediated bradycardia and heart block.
Secondary prevention
Control of chronic cardiovascular conditions can potentially be of some benefit. Statins have not shown to be beneficial in prevention of atrial fibrillation in patients with AV block and a permanent pacemaker implantation.[49]
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