Key result
Conductors' externalization occurred in 33% of patients with Riata leads and was independently associated with higher LVEF (P=0.04) and decreased ventricular electrogram amplitude (P=0.03).
Why the study?
What are the predictors and prevalence of conductor externalization in patients with small-caliber Riata ICD leads?
Observational (n=36)
What are the predictors and prevalence of conductor externalization in patients with small-caliber Riata ICD leads?
In patients with Riata ICD leads, higher LVEF and a progressive decrease in ventricular electrogram amplitude are associated with conductor externalization, which is often preceded by electrical dysfunction.
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May guide targeted monitoring of Riata leads with higher LVEF or declining electrograms; leaves open prospective validation of clinical utility.
Kubala et al. (2013) conducted an observational in Implantable cardioverter-defibrillator (ICD) leads (Riata family) (n=36). Riata family implantable cardioverter-defibrillator leads was evaluated on Conductors' externalization. Conductors' externalization occurred in 33% of patients with Riata leads and was independently associated with higher LVEF (P=0.04) and decreased ventricular electrogram amplitude (P=0.03).
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