title: Hypertrophic cardiomyopathy and tachyarrhythmias detected by a pacemaker.
abstract: A 56-year-old man came to the Pacemaker Clinic for his regular pacemaker control. He had experienced a syncopal episode in the previous week. He had a previous diagnosis of non-obstructive hypertrophic cardiomyopathy. Due to a previous syncope and documented 2:1 infrahisian block, a dual-chamber permanent pacemaker had been implanted a few years before. The device was interrogated, showing several ventricular high rate episodes. A careful analysis of the stored intracardiac electrograms showed ventricular tachycardia (VT) with 2:1 ventriculoatrial conduction. The following presentation discusses the alternative diagnosis and clinical management in an unusual diagnosis of VT in the presence of non-obstructive hypertrophic cardiomyopathy.
authors.affiliation: Arrhythmia Service, Kingston General Hospital, Queen's, Canada. barancha@kgh.kari.net
authors.forename: Adrian
authors.initials: A
authors.lastname: Baranchuk
authors.forename: Syamkumar
authors.initials: S
authors.lastname: Divakaramenon
authors.forename: Sebastian
authors.initials: S
authors.lastname: Ribas
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Morillo
mesh_terms: D002304:Cardiac Pacing, Artificial; D002312:Cardiomyopathy, Hypertrophic / Q000628:therapy*; D004562:Electrocardiography / Q000295:instrumentation*; D004567:Electrodes, Implanted; D006801:Humans; D008297:Male; D008875:Middle Aged; D013575:Syncope / Q000175:diagnosis; D013610:Tachycardia / Q000175:diagnosis*