title: Simultaneous wide and narrow QRS complex tachycardia: what is the mechanism?
abstract: We present the case of a 50-year-old patient with several episodes of syncope and documented simultaneous wide and narrow QRS complex tachycardia. We then review this tacharrhythmia, focusing on electrophysiological findings and pathophysiology, diagnosis and treatment.
authors.affiliation: Cardiovascular Division, UZ Brussel-VUB, Brussels, Belgium. mrodrig3@hotmail.com
authors.forename: Moisés
authors.initials: M
authors.lastname: Rodríguez-Mañero
authors.forename: Fatih
authors.initials: F
authors.lastname: Bayrak
authors.forename: Mehdi
authors.initials: M
authors.lastname: Namdar
authors.forename: Rubén
authors.initials: R
authors.lastname: Casado-Arroyo
authors.forename: Danilo
authors.initials: D
authors.lastname: Ricciardi
authors.forename: Gian-Battista
authors.initials: GB
authors.lastname: Chierchia
authors.forename: Andrea
authors.initials: A
authors.lastname: Sarkozy
authors.forename: Carlo
authors.initials: C
authors.lastname: de Asmundis
authors.forename: Pedro
authors.initials: P
authors.lastname: Brugada
mesh_terms: D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D013610:Tachycardia / Q000175:diagnosis / Q000503:physiopathology* / Q000628:therapy