Tests and Procedures

Pulmonary vein isolation

Overview

Pulmonary vein isolation is a procedure to treat an abnormal heart rhythm called atrial fibrillation.

Pulmonary vein isolation is a type of cardiac ablation. Cardiac ablation uses heat or cold energy to create tiny scars in your heart to block abnormal electrical signals and restore a normal heartbeat.

In pulmonary vein isolation, the tiny scars are created in the left upper chamber of your heart in the area where the four lung (pulmonary) veins connect. Your pulmonary veins bring oxygen-rich blood from your lungs to your heart.