Table 4.

Proposed classification of atrial fibrillation

Duration-based classification
Paroxysmal—continuous AF episode lasting longer than 30 s but terminating spontaneously or with intervention within 7 days of onset Early paroxysmal—continuous AF episode lasting longer than 30 s but terminating spontaneously or with intervention within 24 h of onset
Persistent—continuous AF episode lasting longer than 7 days but <1 year Early persistent—continuous AF episode lasting longer than 7 days but <3 months
Long-standing persistent—continuous AF episode lasting longer than 1 year, in whom rhythm control management is being pursued
Permanent—AF for which a therapeutic decision has been made not to pursue sinus rhythm restoration

AF, atrial fibrillation.