Rate Control for Atrial Fibrillation Catheter Ablation of the AV Node

Catheter ablation of the atrioventricular (AV) node is a procedure that is sometimes used to achieve rate control in people with atrial fibrillation (AFib) who are not able to achieve adequate rate control with medication or who are intolerant of medication.

During the procedure, a catheter is inserted through a vein in the groin and threaded up to the heart. Radiofrequency energy is then used to destroy or ablate the AV node, which is the electrical connection between the atria and ventricles of the heart. This disrupts the normal electrical conduction pathway and prevents the rapid atrial impulses from reaching the ventricles, thus slowing down the heart rate.

After the procedure, a permanent pacemaker is usually implanted to maintain an appropriate heart rate and rhythm. This is because without the AV node, the normal electrical impulses that control the heart rate and rhythm cannot be transmitted from the atria to the ventricles.

Catheter ablation of the AV node is generally considered a last resort for people with AFib who have not been able to achieve adequate rate control with medication, as it carries some risks, such as infection, bleeding, and the need for a permanent pacemaker. However, in some cases, it can be an effective way to manage symptoms and improve quality of life for people with AFib who are not able to tolerate or benefit from other treatment options. It is important to discuss the potential benefits and risks of this procedure with your doctor to determine if it is an appropriate option for you.