Crosstalk Due to Activation of Atrial Sense Marker Function of DDD Pulse Generators |
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Authors: | S. SERGE BAROLD MICHAEL D. FALKOFF LING S. ONG ROBERT A. HEINLE RIGHARD SANDERS |
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Affiliation: | Division of Cardiology, Department of Medicine, The Genese Hospital, and the University of Rochester School of Medicine and Dentistry, Rochester, New York |
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Abstract: | We studied the occurrence and characteristics of crosstalk related to the atrial sense marker function of the Intermedics Cosmos DDD pulse generator in 29 patients. Upon activation of the atrial sense markers, the pulse generator delivers a series of markers in the form of triggered atrial stimuli at 0.025 ms in duration at the programmed voltage output of the atrial channel. Under certain circumstances, these atrial sense marker stimuli may cause crosstalk when they are sensed by the ventricular sensing amplifier. This form of crosstalk may be eliminated in most cases by decreasing ventricular sensitivity and/or atrial output voltage. |
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Keywords: | crosstalk DDD or dual chambered pacemakers sense event markers |
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