title: Demonstration of entrainment and presence of slow conduction during ventricular tachycardia in arrhythmogenic right ventricular dysplasia.
abstract: During VT in two cases with arrhythmogenic right ventricular dysplasia, entrainment criteria, constant fusion beats except for the last entrainment beat, progressive fusion, and a localized conduction block associated with interruption of VT, were demonstrated with rapid ventricular pacing performed during VT. Furthermore, a long conduction interval was present during entrainment from the pacing site to the earliest activation site during VT, indicating the presence of a slow conduction area. VT in these cases was, thus, due to reentry with an area of slow conduction within the circuit.
authors.affiliation: Division of Cardiology, Kumamoto University School of Medicine, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Yamabe
authors.forename: K
authors.initials: K
authors.lastname: Okumura
authors.forename: T
authors.initials: T
authors.lastname: Tsuchiya
authors.forename: H
authors.initials: H
authors.lastname: Yasue
mesh_terms: D000200:Action Potentials / Q000502:physiology; D000368:Aged; D002036:Bundle of His / Q000503:physiopathology; D002304:Cardiac Pacing, Artificial / Q000379:methods; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology; D006330:Heart Defects, Congenital / Q000150:complications* / Q000503:physiopathology*; D006352:Heart Ventricles / Q000002:abnormalities / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009431:Neural Conduction / Q000502:physiology; D017180:Tachycardia, Ventricular / Q000503:physiopathology* / Q000628:therapy*; D016278:Ventricular Function, Right / Q000502:physiology