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IMPLANTABLE CARDIOVERTER DEFIBRILLATOR LONGEVITY IN A LARGE SINGLE CENTER COHORT
E108 JACC April 5, 2011 Volume 57, Issue 14
CARDIAC ARRHYTHMIAS IMPLANTABLE CARDIOVERTER DEFIBRILLATOR LONGEVITY IN A LARGE SINGLE CENTER COHORT ACC Poster Contributions Ernest N. Morial Convention Center, Hall F Monday, April 04, 2011, 9:30 a.m.-10:45 a.m.
Session Title: Heart Failure and Atrial Tachyarrhythmia in ICD Recipients Abstract Category: 29. Defibrillation/Implantable Antiarrhythmia Devices Session-Poster Board Number: 1090-391 Authors: Joep Thijssen, C. Jan Willem Borleffs, Johannes B. van Rees, Míhàly K. de Bie, Enno T. van der Velde, Ernst E. van der Wall, Lieselot van Erven, Jeroen J. Bax, Martin J. Schalij, Leiden University Medical Center, Department of Cardiology, Leiden, The Netherlands Background: One of the major drawbacks of implantable cardioverter defibrillator (ICD) therapy is the limited service life. Thus far, data concerning ICD longevity under clinical circumstances are scarce. In the current analysis, an assessment of ICD service life was performed in a large cohort of ICD patients. Methods: All patients receiving an ICD in the Leiden University Medical Center were included in the analysis and follow-up visits were recorded prospectively. During follow-up, causes of ICD replacement were assessed. ICD service life was defined as time from ICD-implantation to replacement due to battery depletion. Additionally, service life was compared between different types of ICD. Results: Since 1992, 3226 ICDs were implanted of which 818 ICDs (25%) were replaced. Of these, 543 (66%) ICDs were replaced due to battery depletion. Mean service life of an ICD was 5.3±0.1 years. Mean longevity was 5.4±0.2 years for single-chamber (SC) ICDs, 5.5±0.2 for dualchamber (DC) ICDs and 4.4±0.2 years for cardiac resynchronization therapy -defibrillators (CRT-Ds) (p<0.001). Devices implanted after 2002 had a significantly better service life as compared to devices implanted before 2002 (5.3±0.1 vs. 5.0±0.2 years, p<0.001). Conclusions: The majority of ICDs were replaced because of battery depletion. Service life was significantly shorter in CRT-D devices as compared to SC and DC devices. Modern ICD generations demonstrated improved longevity.
CARDIAC ARRHYTHMIAS IMPLANTABLE CARDIOVERTER DEFIBRILLATOR LONGEVITY IN A LARGE SINGLE CENTER COHORT ACC Poster Contributions Ernest N. Morial Convention Center, Hall F Monday, April 04, 2011, 9:30 a.m.-10:45 a.m.
Session Title: Heart Failure and Atrial Tachyarrhythmia in ICD Recipients Abstract Category: 29. Defibrillation/Implantable Antiarrhythmia Devices Session-Poster Board Number: 1090-391 Authors: Joep Thijssen, C. Jan Willem Borleffs, Johannes B. van Rees, Míhàly K. de Bie, Enno T. van der Velde, Ernst E. van der Wall, Lieselot van Erven, Jeroen J. Bax, Martin J. Schalij, Leiden University Medical Center, Department of Cardiology, Leiden, The Netherlands Background: One of the major drawbacks of implantable cardioverter defibrillator (ICD) therapy is the limited service life. Thus far, data concerning ICD longevity under clinical circumstances are scarce. In the current analysis, an assessment of ICD service life was performed in a large cohort of ICD patients. Methods: All patients receiving an ICD in the Leiden University Medical Center were included in the analysis and follow-up visits were recorded prospectively. During follow-up, causes of ICD replacement were assessed. ICD service life was defined as time from ICD-implantation to replacement due to battery depletion. Additionally, service life was compared between different types of ICD. Results: Since 1992, 3226 ICDs were implanted of which 818 ICDs (25%) were replaced. Of these, 543 (66%) ICDs were replaced due to battery depletion. Mean service life of an ICD was 5.3±0.1 years. Mean longevity was 5.4±0.2 years for single-chamber (SC) ICDs, 5.5±0.2 for dualchamber (DC) ICDs and 4.4±0.2 years for cardiac resynchronization therapy -defibrillators (CRT-Ds) (p<0.001). Devices implanted after 2002 had a significantly better service life as compared to devices implanted before 2002 (5.3±0.1 vs. 5.0±0.2 years, p<0.001). Conclusions: The majority of ICDs were replaced because of battery depletion. Service life was significantly shorter in CRT-D devices as compared to SC and DC devices. Modern ICD generations demonstrated improved longevity.