Population
225 patients ≥ 80 years of age receiving implantable defibrillators (ICDs), mean age 83.3 ± 3.1 years.
Design
Cohort
Follow-up
3.3 +/- 2.6 years
Authors
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Flags high-mortality elderly ICD subgroup; leaves open net benefit of implantation pending prospective data.
In ICD recipients aged 80 and older, an ejection fraction ≤20% and absence of beta-blocker use strongly predict 1-year mortality, identifying a subgroup that may derive limited benefit from device implantation.
Ertel et al. (2010) studied this question.
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