Long term longevity of defibrillator leads: a prospective follow-up over 25 years

Abstract Funding Acknowledgements Type of funding sources: None. Background The implantable cardioverter defibrillator (ICD) lead is the most fragile part device. Several studies have focused on both longevity ICD and factors associated with malfunction but long-term data (i.e., ≥ 10 years) are limited. Purpose We report our experience very leads. Methods Data from all patients ≥18 years implanted an transvenous at university hospital between 1988 May 2021 were prospectively collected analyzed. Follow-up was censored in July 2022. included patient characteristics, characteristics follow-up data. primary endpoint study survival rate without failure defined by 2017 HR consensus . Factors influencing Results 2093 leads study. During (mean = 72.6±56.9 months, range 11-299), there 84 dysfunction. Lead 97% 5 years, 92% 88% 15 85% 24 respectively. In multivariate analysis, a higher risk dysfunction revealed were: younger age (p 0.001), channelopathy 0.037), Linox 0.041), Riata 0.022) Fidelis 0.001). On other hand, polyurethane coated < Durata 0.036), Endotak reliance 0.016) Sprint quattro 6935 0.026) less Conclusion decreased progressively 1 after implantation rupture seems to be maximal within first implant little increase thereafter.