Suppression of Demand Pacemakers by Inactive Pacemaker Electrodes | Zendy

Warren D. Widmann | Zendy; Stelio Mangiola | Zendy; LAWRENCE A. LUBOW | Zendy; FAYETTA M. DOLAN | Zendy

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Suppression of Demand Pacemakers by Inactive Pacemaker Electrodes

Author(s) -

Warren D. Widmann,

Stelio Mangiola,

LAWRENCE A. LUBOW,

FAYETTA M. DOLAN

Publication year - 1972

Publication title -

circulation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.795

H-Index - 607

eISSN - 1524-4539

pISSN - 0009-7322

DOI - 10.1161/01.cir.45.2.319

Subject(s) - medicine , electrode , stimulation , cardiology , artificial cardiac pacemaker , biomedical engineering , chemistry

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.

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