What should I think about if I have electrical cardioversion for A Fib?

Cardioversion may be less successful or may not be recommended if you:

• Have had atrial fibrillation for more than a year.
• Have significant valve problems.
• Have an enlarged heart as a result of heart failure or cardiomyopathy.
• Have multiple recurrences of atrial fibrillation.

Cardioversion is more likely to be successful if:

• Atrial fibrillation has been present for less than a year.
• This is your first episode of atrial fibrillation.
• You are young.
• Antiarrhythmic medicines are used along with cardioversion.