Atrial Fibrillation (AF) Ablation is a minimally invasive cardiac procedure used to treat atrial fibrillation, a common heart rhythm disorder that causes the heart to beat irregularly and often rapidly. The procedure uses a catheter to identify abnormal electrical signals in the heart and applies controlled energy to create small areas of scar tissue that block these faulty signals. Common techniques include radiofrequency ablation and cryoablation.
Who May Need AF Ablation?
AF ablation may be considered for people who continue to experience atrial fibrillation symptoms despite medication or who are suitable candidates for ablation as an early rhythm-control treatment. Your cardiologist or cardiac electrophysiologist will assess your heart rhythm, symptoms, medical history and overall health before recommending the procedure.
How Is Atrial Fibrillation Ablation Performed?
During catheter ablation, thin flexible catheters are usually introduced through a blood vessel, commonly in the groin, and guided toward the heart. The specialist uses cardiac mapping and imaging to locate abnormal electrical activity. Energy such as radiofrequency heat or extreme cold can then be used to treat the targeted areas, often around the pulmonary veins, which can be important sources of AF triggers.
The procedure commonly takes several hours, although the duration varies depending on the type and complexity of the ablation. Patients are monitored closely following the procedure and may be discharged the same day or remain in hospital overnight depending on their condition.
Recovery and Follow-Up
Some patients experience mild soreness or fatigue following AF ablation. Recovery varies from person to person, and your medical team will advise when you can return to normal activities. Follow-up appointments are important to monitor your heart rhythm and assess treatment response.
Atrial fibrillation can sometimes return after ablation, and some patients may require additional treatment or another ablation procedure. Importantly, AF ablation does not automatically eliminate stroke risk, so anticoagulant or other medicines may still be recommended based on your individual stroke-risk assessment.