The Impact of Autonomic Function on Atrial Fibrillation Recurrence After Pulmonary Vein Ablation

Circumferential pulmonary vein isolation (CPVI) is a type of cardiac ablation procedure. Cardiac ablation procedures involve creating small scars in the heart using thermal or cold energy to block irregular electrical signals and restore normal heart rhythm. CPVI specifically creates small scars in the area where the four pulmonary veins connect to the left atrium of the heart. The pulmonary veins carry oxygen-rich blood from the lungs to the heart.