Which classification applies to AF that lasts longer than 1 year?

Atrial Fibrillation (AF) classification is essential for guiding management and treatment options. When AF lasts longer than one year, it is classified as Permanent AF. This classification indicates that the arrhythmia is continuous, and the patient or healthcare provider has decided not to pursue further attempts to restore normal sinus rhythm.

In this context, Permanent AF represents a stage where the condition is entrenched, and often, the management focuses on rate control and the prevention of thromboembolic complications rather than rhythm restoration. The distinction is important because treatments and patient management strategies differ significantly from those for Paroxysmal AF (episodes that terminate spontaneously or with intervention), Persistent AF (sustained AF that lasts longer than seven days but may still be reverted), and First Diagnosed AF (the initial episode of AF without defining its duration).

Understanding the duration and classification of AF enables better patient outcomes through tailored therapeutic approaches, emphasizing the importance of recognizing the characteristics associated with Permanent AF.