Tachycardia Mediated by an AV Universal (DDD) Pacemaker Triggered by a Ventricular Depolarization

A 44‐year‐old female had Chagas’ disease with right bundle branch block, right axis deviation, and ventricular ectopic beats. An invasive evaluation showed a prolonged HV interval of 100 ms. A Medtronic Versatrax 7000 was implanted, after which a pacemaker‐mediated tachycardia was observed. The esop...

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Bibliographic Details
Published in:Pacing and clinical electrophysiology 1986-01, Vol.9 (1), p.105-107
Main Authors: PIMENTA, JOÃO, SOLDÁ, ROBERTO, PEREIRA, CARLOS BRITTO
Format: Article
Language:English
Subjects:
Adult
Chagas' disease
Electrocardiography
Female
Heart Atria - physiopathology
Heart Block - physiopathology
Heart Block - therapy
Heart Conduction System - physiopathology
Heart Ventricles - physiopathology
Humans
Pacemaker, Artificial
pacemaker-mediated tachycardia
Tachycardia - physiopathology
universal pacemaker
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Summary:A 44‐year‐old female had Chagas’ disease with right bundle branch block, right axis deviation, and ventricular ectopic beats. An invasive evaluation showed a prolonged HV interval of 100 ms. A Medtronic Versatrax 7000 was implanted, after which a pacemaker‐mediated tachycardia was observed. The esophageal lead ruled out the possibility of an atrial triggered tachycardia. The diagnosis was pacemaker‐mediated tachycardia due to abnormal sensing of the terminal forces of the ventricular activation because of malposition of the atrial lead in the right ventricular out‐flow tract.
ISSN:0147-8389
1540-8159
DOI:10.1111/j.1540-8159.1986.tb05366.x