title: "Wide-narrow-wide" QRS complex tachycardia: What is the mechanism?
authors.affiliation: Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy. Electronic address: carbovincenzo61@gmail.com.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Carbone
authors.affiliation: Cardiovascular Department, "G. Mazzini" Hospital, Teramo, Italy.
authors.forename: Alessio
authors.initials: A
authors.lastname: Poggi
authors.affiliation: Cardiovascular and Thoracic Department, University Hospital of Verona, Verona, Italy.
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Marafioti
authors.affiliation: Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Oreto
mesh_terms: D004562:Electrocardiography; D006329:Heart Conduction System / Q000503:physiopathology*; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013617:Tachycardia, Supraventricular / Q000175:diagnosis / Q000503:physiopathology*
keywords: Fast pathway; Fusion; Slow pathway; Supraventricular tachycardia; Ventricular tachycardia