Shock occurrence and survival in 241 patients with implantable cardioverter-defibrillator therapy.
Why the study?
What clinical characteristics predict shock occurrence and survival in patients with implantable cardioverter-defibrillator therapy?
Population
241 consecutive patients who underwent implantable cardioverter-defibrillator implantation between November…
Design
Cohort
Follow-up
26 +/- 22 months
Authors
Discussion
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Member takes
Implication
EF ≤30% flags ICD patients for intensified monitoring; supports consensus stratification while leaving prospective validation open.
Structured PICO
What clinical characteristics predict shock occurrence and survival in patients with implantable cardioverter-defibrillator therapy?
P
Population
241 consecutive patients who underwent implantable cardioverter-defibrillator (ICD) implantation between November 1982 and November 1991
I
Intervention
Implantable cardioverter-defibrillator (ICD) therapy
O
Outcome
Shock occurrence (appropriate and any spontaneous) and survival (all-cause mortality and arrhythmic death)hard clinical
In patients with ICDs, low ejection fraction is the strongest predictor of both shock occurrence and mortality, whereas the occurrence of shocks itself is not associated with increased mortality.
Cite This Study
Grimm et al. (1993) studied this question.