Suppression of Demand Pacemakers by Inactive Pacemaker Electrodes

Author:

WIDMANN WARREN D.1,MANGIOLA STELIO1,LUBOW LAWRENCE A.1,DOLAN FAYETTA M.1

Affiliation:

1. From the Departments of Surgery and Medicine, Morristown Memorial Hospital, Morristown, New Jersey.

Abstract

Ventricular inhibited cardiac pacemakers were suppressed by intimate contact of the tip of the active pacemaker electrode with that of the inactive pacemaker electrode in two patients. This contact apparently was sensed as myocardial electrical activity and resulted in variable suppression of pacemaker emission. There was no interference with R-wave sensing function. The threshold for stimulation was unaffected. There was no loss of capture as tested with the magnet-controlled continuous mode of stimulation. This type of pacemaker failure can be remedied simply by withdrawing the tips of the electrodes from intimate contact.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Physiology (medical),Cardiology and Cardiovascular Medicine

Reference12 articles.

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5. Deactivation of a Demand Pacemaker by Transurethral Electrocautery

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