Clinical Research Directory

Inclusion Criteria: * Primary indication for EPS for the evaluation of cardiac conduction system or supraventricular tachycardia. Exclusion Criteria: * Previous EPS with ablation * Previous failed ablation * Known conduction system disease, right or left bundle branch block on EKG * Pregnant women * History of postural orthostatic tachycardia syndrome * Patients who have had prior cervical vagotomy * Patients with skin on the tragus that is broken or cracked * Patients with a history of baseline cardiac disease or atherosclerotic cardiovascular disease, including congestive heart failure (CHF), known severe coronary artery disease or recent myocardial infarction (within 5 years) and patients diagnosed with narrowing of the arteries (carotid atherosclerosis) * Patients with an active implantable medical device, such as a cardiac pacemaker, hearing aid implant, or any implanted metallic, implanted vagus nerve stimulator or electronic device.