Abstract | BACKGROUND: Electrophysiology studies (EPS) have historically played a role in sudden death risk stratification. More recent studies point to the left ventricular ejection fraction (EF) as a guide to implantable cardioverter defibrillators (ICD) implantation. The extent of EPS use in patients undergoing ICD implantation in the current era remains unknown. METHODS: Patients undergoing de novo ICD implantation in the ICD Registry between September 2006 and March 2009 who also underwent EPS within 30 days before implant were compared to the remaining cohort to identify clinical characteristics that correlated with EPS performance. Multivariate models were generated using hierarchical logistic regression analysis. RESULTS: CONCLUSIONS: EPS were performed predominantly in patients with borderline or less well-defined risk factors for sudden death. Ventricular arrhythmias induced from EPS were not uncommon and may help identify individuals at higher risk for future ICD therapies. Efforts to better define the role of EPS in patients undergoing ICD implantation should be considered.
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Authors | Alan Cheng, Yongfei Wang, Ronald D Berger, Hugh Calkins, Alfred E Buxton, Jeptha P Curtis, Rachel Lampert |
Journal | Pacing and clinical electrophysiology : PACE
(Pacing Clin Electrophysiol)
Vol. 35
Issue 8
Pg. 912-8
(Aug 2012)
ISSN: 1540-8159 [Electronic] United States |
PMID | 22670627
(Publication Type: Journal Article)
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Copyright | ©2012, The Authors. Journal compilation ©2012 Wiley Periodicals, Inc. |
Topics |
- Aged
- Aged, 80 and over
- Cardiovascular System
(physiopathology)
- Cohort Studies
- Death, Sudden, Cardiac
(epidemiology)
- Defibrillators, Implantable
(adverse effects, statistics & numerical data)
- Electrophysiologic Techniques, Cardiac
(statistics & numerical data)
- Female
- Heart Failure
(epidemiology, physiopathology)
- Humans
- Male
- Middle Aged
- Registries
- Stroke Volume
(physiology)
- Syncope
(epidemiology, physiopathology)
- Tachycardia, Ventricular
(prevention & control, therapy)
- Treatment Outcome
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