Acute transient non-physiological over-sensing in the ventricle with a DF4 lead
Kevin Kit Ng, Paul A. Gould
Indian Pacing and Electrophysiology Journal · 2015
doi:10.1016/j.ipej.2015.10.008 (opens in a new tab)
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Abstract
The DF-4 is a new defibrillator lead technology. We present two cases of non-physiological transient ventricular over-sensing in patients who underwent implantation of an ICD for secondary prevention. Case 1 had ventricular over-sensing during pacing threshold evaluation post defibrillation testing while Case 2 had the lead integrity alert triggered immediately post discharge with transient over-sensing. No lead-connector issues were found. Case 1 was likely due to improper venting of the header and trapped air. Case 2 was hypothesized to be due to intermittent header pin non-contact secondary to blood in the header. These cases reveal that DF-4 leads are subject to both reported and potentially novel causes of transient acute ventricular over-sensing.
Abstract licence: CC BY-NC-ND
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