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Idiosyncratic pacing with a commercial pacing system analyzer
S Zweibel1, S Goel, E Calderon
1Pacemaker Center, Montefiore Medical Center, Bronx, New York 10467, USA.
Pacing and Clinical Electrophysiology : PACE
|February 10, 1998
Abstract:
An idiosyncratic response of the Medtronic AV Pacing System Analyzers (models 5311 [unipolar] and 5311B [bipolar]) during high output AAI pacing is reported. Using the bipolar analyzer with unipolar cables and a 2734 adaptor, ventricular capture was noted during high output AAI pacing when the ground was displaced from the patient. Using the unipolar analyzer with bipolar cables also resulted in ventricular capture with high output AAI pacing. Implanting physicians should be aware of this phenomenon to avoid false conclusions.