Journal of the American College of Cardiology · 2010
Acute lead dislodgements and in-hospital mortality in patients enrolled in the national cardiovascular data registry implantable cardioverter defibrillator registry.
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Cheng Alan, Wang Yongfei, Curtis Jeptha P, Varosy Paul D
Аннотация
OBJECTIVES: We sought to describe the incidence of acute lead dislodgements and the consequences of these events in patients enrolled in the National Cardiovascular Data Registry (NCDR) Implantable Cardioverter-Defibrillator (ICD) Registry.
BACKGROUND: Lead dislodgements are common adverse events in patients undergoing ICD implants. Little is known regarding who is at risk and the consequences of these events.
METHODS: Patients enrolled between April 2006 and September 2008 were included. Acute lead dislodgement was defined as movement of the lead requiring another procedure for repositioning before discharge.
RESULTS: Acute dislodgement occurred in 2,628 of 226,764 patients. Univariate variables associated with dislodgements included older age, female sex, and patients with atrial fibrillation, chronic lung disease, cerebrovascular disease, nonischemic cardiomyopathy, and lower ejection fractions (all p < 0.002). After multivariate adjustment, factors associated with an increased risk for dislodgement included New York Heart Association functional class IV heart failure, atrial fibrillation/flutter, having a cardiac resynchronization therapy-defibrillator device, and procedures performed by physicians trained under alternative pathways. A teaching/training hospital setting was not a factor (p = 0.64). Acute dislodgements had increased odds for other adverse events including cardiac arrest, cardiac tamponade, device infection, pneumothorax, and in-hospital death even after adjustment for potential confounders (all p < 0.0001).
CONCLUSIONS: Acute lead dislodgements occur more often in patients with more comorbidities and in patients undergoing implants by nonelectrophysiology-trained implanters. These events were strongly associated with increased odds for in-hospital death.
BACKGROUND: Lead dislodgements are common adverse events in patients undergoing ICD implants. Little is known regarding who is at risk and the consequences of these events.
METHODS: Patients enrolled between April 2006 and September 2008 were included. Acute lead dislodgement was defined as movement of the lead requiring another procedure for repositioning before discharge.
RESULTS: Acute dislodgement occurred in 2,628 of 226,764 patients. Univariate variables associated with dislodgements included older age, female sex, and patients with atrial fibrillation, chronic lung disease, cerebrovascular disease, nonischemic cardiomyopathy, and lower ejection fractions (all p < 0.002). After multivariate adjustment, factors associated with an increased risk for dislodgement included New York Heart Association functional class IV heart failure, atrial fibrillation/flutter, having a cardiac resynchronization therapy-defibrillator device, and procedures performed by physicians trained under alternative pathways. A teaching/training hospital setting was not a factor (p = 0.64). Acute dislodgements had increased odds for other adverse events including cardiac arrest, cardiac tamponade, device infection, pneumothorax, and in-hospital death even after adjustment for potential confounders (all p < 0.0001).
CONCLUSIONS: Acute lead dislodgements occur more often in patients with more comorbidities and in patients undergoing implants by nonelectrophysiology-trained implanters. These events were strongly associated with increased odds for in-hospital death.