What is the primary use of amiodarone in patients with stable atrial fibrillation?

Amiodarone is primarily used in patients with stable atrial fibrillation to convert the arrhythmia to normal sinus rhythm. This antiarrhythmic medication works by affecting various ion channels in the heart, leading to a prolongation of the action potential and refractory period, which can help restore and maintain normal sinus rhythm. Its effectiveness in rhythm control is particularly valuable in managing persistent atrial fibrillation where other conversion strategies may not be as effective or suitable.

While the prevention of thromboembolic events is crucial in atrial fibrillation management, this is typically achieved through anticoagulation therapy rather than with amiodarone itself. Similarly, controlling heart rate is an important aspect of atrial fibrillation management but is often addressed with rate-controlling medications such as beta-blockers or calcium channel blockers, not specifically amiodarone. Lastly, amiodarone is not indicated for reducing blood pressure in hypertensive patients; its use is more focused on rhythm control in the context of atrial fibrillation. Thus, converting atrial fibrillation to normal sinus rhythm is the primary role of amiodarone in this patient population.