Failure of implantable cardioverter-defibrillator leads: A matter of lead size?

Background Small-diameter implantable cardioverter-defibrillator (ICD) Sprint Fidelis and Riata leads have been recalled owing to an increased risk of lead failure, thus arousing the suspicion that lead size might be a critical issue. Objective To compare the incidence of failure of small-diameter (...

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Veröffentlicht in:	Heart rhythm 2013-02, Vol.10 (2), p.184-190
Hauptverfasser:	Rordorf, Roberto, MD, Poggio, Luca, MD, Savastano, Simone, MD, Vicentini, Alessandro, MD, Petracci, Barbara, MD, Chieffo, Enrico, MD, Klersy, Catherine, MD,MSc, Landolina, Maurizio, MD
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult Analysis of Variance Arrhythmias, Cardiac - diagnosis Arrhythmias, Cardiac - mortality Arrhythmias, Cardiac - therapy Cardiovascular Cohort Studies Confidence Intervals Defibrillator Defibrillators, Implantable - adverse effects Durata lead Electrodes, Implanted - adverse effects Equipment Design Equipment Failure - statistics & numerical data Equipment Failure Analysis Female Follow-Up Studies Humans ICD lead Lead failure Lead size Male Middle Aged Multivariate Analysis Predictive Value of Tests Proportional Hazards Models Retrospective Studies Riata lead Risk Assessment Sprint Fidelis Survival Analysis Treatment Outcome
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Zusammenfassung:	Background Small-diameter implantable cardioverter-defibrillator (ICD) Sprint Fidelis and Riata leads have been recalled owing to an increased risk of lead failure, thus arousing the suspicion that lead size might be a critical issue. Objective To compare the incidence of failure of small-diameter (≤8 F) and standard-diameter (>8 F) ICD leads implanted in a single center. Methods From January 2003 to December 2010, 190 Sprint Fidelis, 182 Riata/Riata ST, 99 Optim (Riata Optim/Durata), and 419 standard-diameter leads were implanted in our center. Results During a median follow-up of 33 months, the overall failure rate was 6.3%. Follow-up duration was similar for Sprint Fidelis, Riata, and standard-diameter leads but shorter for the Optim group. The failure rate was significantly higher in Sprint Fidelis leads than in both standard-diameter (4.8%/year vs 0.8%/year; P
ISSN:	1547-5271 1556-3871
DOI:	10.1016/j.hrthm.2012.10.017