Atrial fibrillation, or AF, is a quivering or irregular heartbeat. Left untreated, AF gets worse over time. Medications and procedures can reset or control the heart’s rate and rhythm to prevent irregular heartbeat and reduce risk for stroke for many people. These measures are not enough for some patients, however. When medications are not enough, patients may benefit from cardiac ablation.
Cardiac ablation destroys the tissue producing the unpredictable electrical signal. Ablation directs energy at the pulmonary vein, where it connects to the left atrium of the heart. This energy creates lesions that cause the tissue to scar over, preventing the erratic signals from ever reaching the atria.