Benefits of intracardiac electrograms and programmable sensing polarity in preventing pacemaker inhibition due to spurious screw-in lead signals.
False inhibition of ventricular output due to spurious signals from a bipolar Oscor Medical lead (PY58BV) is reported following implantation of a Pacesetter Synchrony DDDR 2020T. Telemetered bipolar and distal unipolar intracardiac electrograms revealed 20 mV spurious signals coming from the distal screw-in electrode. Reprogramming the sensing channel to unipolar ring prevented inhibition of pacemaker output.
Central Cardiology Medical Clinic, Bakersfield, California 93301.
P C
PC
Nalos
W
W
Nyitray
D000368:Aged; D002304:Cardiac Pacing, Artificial / Q000379:methods; D004562:Electrocardiography; D004567:Electrodes, Implanted; D004868:Equipment Failure; D006327:Heart Block / Q000628:therapy; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial; D013686:Telemetry