What is this?
Cardioversion is a method of restoring an arrhythmia (abnormal heart rhythm) back to normal by using an electrical shock on specialised pads on the patient’s chest. The sudden electrical jolt restores the abnormal heart beat to normal rhythm. Up to three shocks in increasing energy may be given to restore a regular heart rhythm. Most elective or “non-emergency” cardioversions are performed to treat atrial fibrillation.