Why the study?
Does a VDD pacing system interact with a retained VVI lead to cause atrial oversensing in an acute canine model?
Does a VDD pacing system interact with a retained VVI lead to cause atrial oversensing in an acute canine model?
In an acute canine model, utilizing a VDD pacing system alongside a retained nonfunctioning VVI lead did not result in atrial oversensing, suggesting potential feasibility without significant lead-lead interference.
Answers are grounded in this paper and cite their sources.
Acute canine data suggest minimal interference; leaves open safety of retained VVI leads with VDD systems in humans.
Limited data exist on the utilization of a transvenous A-sense; V-pace/sense (VDD)pacing system with a chronically retained nonfunctioning endocardial V-sense/pace (VVI)pacing lead. In an acute canine model, no atrial oversensing was observed with lead-lead interaction between the VDD lead and the pseudo-retained VVI lead. Undersensing occurred <10% of all beats observed.
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Cohen et al. (2006) studied this question.
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