Why the study?
Does left ventricular ejection fraction < 30% worsen outcomes in patients treated with implantable defibrillators compared to LVEF >= 30%?
Population
68 consecutive patients treated with implantable defibrillators
Comparison
Implantable defibrillator therapy in patients… vs Implantable defibrillator therapy in patients…
Design
Cohort
Follow-up
31 +/- 27 months
Authors
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LVEF <30% marks higher post-ICD arrhythmia mortality risk; cohort data leave open prospective validation for refined selection.
Does left ventricular ejection fraction < 30% worsen outcomes in patients treated with implantable defibrillators compared to LVEF >= 30%?
In patients receiving implantable defibrillators, severe left ventricular dysfunction (LVEF < 30%) is associated with higher surgical mortality and total arrhythmia-related death compared to those with LVEF >= 30%.
Kim et al. (1992) studied this question.
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