All the following are true about Atrial fibrillation, except

There are two approaches to mitigate the risk related to cardioversion. One option is to anticoagulate continuously for 3 weeks before and a minimum of 4 weeks after cardioversion. A second approach is to sta anticoagulation and perform a transesophageal echocardiogram to determine if throm- bus is present in the left atrial appendage Ref Harrison 20th edition pg 1576