KEY TEACHING POINTS

•The right atrial approach is sufficient for vagal denervation of the atrioventicular (AV) node. •Potentials >300 Hz have excellent correlation with fibrillar atrial myocardium in the region compatible with paracardiac ganglia, which present a heterogenous and coarse segmented spectrum. •Cardioneuroablation in patients with functional AV block is feasible and may be a valuable adjunctive therapy in patients who cannot be adequately treated by conventional modalities and refuse pacemaker implantation.