Key result
A cardiac cause of syncope was associated with higher 5-year mortality (50.5%) compared to noncardiac (30%) or unknown causes (24.1%), and was an independent predictor of sudden death.
Population
433 patients with syncope
Design
Cohort
Follow-up
5 years
Authors
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Cardiac syncope may warrant closer surveillance; leaves open whether etiology-specific interventions improve survival.
Cohort (n=433)
Effect estimate: SMR 5.02
Absolute Event Rate: 50.5% vs 30%
A cardiac etiology of syncope is an independent predictor of significantly higher 5-year mortality and sudden death compared to noncardiac or unknown causes.
Wishwa N. Kapoor (1990) conducted a cohort in Syncope (n=433). Cardiac cause of syncope vs. Noncardiac or unknown cause of syncope was evaluated on Mortality at 5 years (SMR 5.02). A cardiac cause of syncope was associated with higher 5-year mortality (50.5%) compared to noncardiac (30%) or unknown causes (24.1%), and was an independent predictor of sudden death.
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