Typical Atrioventricular Nodal Reentrant and Orthodromic Atrioventricular Tachycardias: Electrocardiographic, Electrophysiological Diagnosis and Treatment
- *Corresponding Author:
- Rose Mary Ferreira Lisboa da Silva
Department of Internal Medicine
Faculty of Medicine
Federal University of Minas Gerais, Brazil
E-mail: [email protected]
Received date: April 04, 2016; Accepted date: May 23, 2016; Published date: May 28, 2016
Citation: Lisboa da Silva RMF, Roever L (2016) Typical Atrioventricular Nodal Reentrant and Orthodromic Atrioventricular Tachycardias: Electrocardiographic, Electrophysiological Diagnosis and Treatment. Arrhythm Open Access 1:109. doi:10.4172/atoa.1000109
Copyright: © 2016 Lisboa da Silva RMF, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Paroxysmal supraventricular tachycardias with narrow QRS are defined as rhythms originating from above the His bundle, heart rate higher 100 bpm and QRS complex of less than 120 ms in adults or less than 90 ms in children. They present a prevalence of up to 8/1000 individuals. The main presentations of these regular tachycardias are atrioventricular nodal re-entrant tachycardia and orthodromic atrioventricular reentrant tachycardia due to an accessory pathway. These tachycardias present morbidity, with symptoms such as palpitations, dyspnea, chest pain, syncope, polyuria, and can be a cause of sudden cardiac death. Thus, their clinical and electrocardiographic diagnoses are the first step in the approach and treatment of the patient. This review will discuss the clinical aspects, electrocardiographic, electrophysiological diagnosis and treatment options in the acute phase and long-term management, in addition to nonpharmacological treatment.