April 1, 1994Circulation
Mortality benefits and the implantable cardioverter-defibrillator.
Why the study?
Does the implantable cardioverter-defibrillator improve overall survival in patients with life-threatening ventricular tachyarrhythmias?
Population
Patients with life-threatening ventricular tachyarrhythmias
Design
Review
Authors
Discussion
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Member takes
Implication
Mortality benefit of ICDs varies by competing risks; leaves open refined selection criteria for net survival gain.
Structured PICO
Does the implantable cardioverter-defibrillator improve overall survival in patients with life-threatening ventricular tachyarrhythmias?
P
Population
Patients with life-threatening ventricular tachyarrhythmias
I
Intervention
Implantable cardioverter-defibrillator (ICD)
O
Outcome
Overall survival / mortality benefithard clinical
While ICDs effectively reduce sudden death, their impact on overall survival varies significantly across different patient subpopulations due to competing clinical risk factors.
Cite This Study
Sweeney et al. (1994) studied this question.