title: Narrow QRS tachycardia with atrioventricular block.
authors.affiliation: Department of Pediatrics, University of Alberta, Edmonton, Canada.
authors.forename: M J
authors.initials: MJ
authors.lastname: Kantoch
authors.forename: S K
authors.initials: SK
authors.lastname: Kimber
mesh_terms: D000293:Adolescent; D002036:Bundle of His / Q000503:physiopathology; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D006327:Heart Block / Q000150:complications*; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007545:Isoproterenol; D008297:Male; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis*
chemical_list: D007545:Isoproterenol