Can you tell me the pros and cons of cardioversion?

Complex: I'm assuming you are referring to cardioversion for af. The benefits of cardioversion are the restoration of normal rhythm. The risks are: (1) stroke (must be anticoagulated before the procedure) (2) won't work (many patients will go back into af either immediately or over time; meds may help this) (3) pain (short, general anesthesia is usually used).

Yes: Cardioversion is an electrical shock treatment to correct arrhythmia, and there is a small risk of stroke and pulmonary edema with this procedure -- talk with your cardiologist.