What factors predict maintenance of sinus rhythm after direct current cardioversion of atrial fibrillation and flutter?
Several factors have been identified which may predict maintenance of sinus rhythm after direct current cardioversion of atrial fibrillation and flutter. These include the patient's age, duration of atrial fibrillation prior to cardioversion, left atrial size, left atrial appendage flow, presence of a left atrial thrombus, and use of anticoagulants prior to cardioversion. Studies have also suggested that patients with lone atrial fibrillation may be more likely to maintain sinus rhythm after cardioversion. Other factors such as the use of antiarrhythmic drugs and the presence of structural heart disease have not been shown to have a significant effect on maintaining sinus rhythm after cardioversion.  