Select the Guidelines & Statements drop-down menu, then click Publication Development. Permissions: Multiple copies, modification, alteration, enhancement, and/or distribution of this document are not permitted without the express permission of the American Heart Association. Instructions for obtaining permission are located at http://www.heart.org/HEARTORG/General/Copyright- Permission-Guidelines_UCM_300404_Article.jsp. A link to the Copyright Permissions Request Form appears on the right side of the page. ACC/AHA/HRS Guideline Page et al 2015 ACC/AHA/HRS SVT Guideline e507 Table of Contents Preamble e507 1. Introduction e508 1.1. Methodology and Evidence Review e508 1.2. Organization of the GWC e510 1.3. Document Review and Approval e510 1.4. Scope of the Guideline e510 2. General Principles e510 2.1. Mechanisms and Definitions e510 2.2. Epidemiology, Demographics, and Public Health Impact e510 Evaluation of the Patient With Suspected or Documented SVT e511 Clinical Presentation and Differential Diagnosis on the Basis of Symptoms e511 2.3.2. Evaluation of the ECG e514 2.4. Principles of Medical Therapy e515 2.4.1. Acute Treatment: Recommendations e515 Ongoing Management: Recommendations e517 Basic Principles of Electrophysiological Study, Mapping, and Ablation e518 Mapping With Multiple and Roving Electrodes e518 Tools to Facilitate Ablation, Including 3-Dimensional Electroanatomic Mapping e518 Mapping and Ablation With No or Minimal Radiation e519 2.5.4. Ablation Energy Sources e519 3. Sinus Tachyarrhythmias e520 3.1. Physiological Sinus Tachycardia e521 3.2. Inappropriate Sinus Tachycardia e521 3.2.1. Acute Treatment e521 3.2.2. Ongoing Management: Recommendations e521 4. Nonsinus Focal Atrial Tachycardia and MAT e523 4.1. Focal Atrial Tachycardia e523 4.1.1. Acute Treatment: Recommendations e526 4.1.2. Ongoing Management: Recommendations e527 4.2. Multifocal Atrial Tachycardia e527 4.2.1. Acute Treatment: Recommendation e531 4.2.2. Ongoing Management: Recommendations e531 5. Atrioventricular Nodal Reentrant Tachycardia e531 5.1. Acute Treatment: Recommendations e532 5.2. Ongoing Management: Recommendations e533 6. Manifest and Concealed Accessory Pathways e534 Management of Patients With Symptomatic Manifest or Concealed Accessory Pathways e535 6.1.1. Acute Treatment: Recommendations e535 6.1.2. 