title: 25 years of insights into the mechanisms of supraventricular arrhythmias.
abstract: The introduction of programmed electrical stimulation of the heart and intracardiac activation mapping 35 years ago made it possible to study the site of origin or pathway of a supraventricular tachycardia and to gain insight into the tachycardic mechanism. Information from these studies has been the basis for the development of new therapies, like arrhythmia surgery, antitachycardia pacing, and catheter ablation. The correlation of intracardiac findings with the 12-lead ECG during the tachycardia resulted in the recognition of characteristic ECG patterns for the different types of supraventricular tachycardias. Currently, gross localization of the site of origin of the arrhythmia is based on the 12-lead ECG during the arrhythmia with fine tuning using intracardiac activation mapping and pacing. These developments during the past 3 decades make accurate arrhythmia diagnosis possible and allow us to offer curative therapies to many of patients suffering from a supraventricular tachycardia.
authors.affiliation: Interuniversity Cardiology Institute of the Netherlands, Utrecht, The Netherlands. hwellens@xs4all.nl
authors.forename: Hein J J
authors.initials: HJ
authors.lastname: Wellens
mesh_terms: D001281:Atrial Fibrillation / Q000209:etiology; D001282:Atrial Flutter / Q000209:etiology; D004562:Electrocardiography / Q000379:methods; D022062:Electrophysiologic Techniques, Cardiac / Q000266:history; D049673:History, 20th Century; D006801:Humans; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000209:etiology; D013616:Tachycardia, Sinus / Q000209:etiology; D013617:Tachycardia, Supraventricular / Q000209:etiology*