Key result
Complete bundle-branch block complicating acute myocardial infarction was associated with significantly higher hospital (32% vs 10%) and 3-year posthospital mortality (37% vs 18%, p<0.001).
Why the study?
Does complete bundle-branch block complicating acute myocardial infarction worsen short- and long-term mortality?
Cohort (n=1,013)
Does complete bundle-branch block complicating acute myocardial infarction worsen short- and long-term mortality?
Absolute Event Rate: 37% vs 18%
p-value: p=<0.001
Complete bundle-branch block complicating acute myocardial infarction is associated with significantly higher hospital and 3-year mortality, primarily driven by events in the first 6 months.
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Identifies complete BBB as high-risk marker in AMI; leaves open whether targeted interventions improve outcomes.
Dubois et al. (1988) conducted a cohort in Acute myocardial infarction (n=1,013). Complete bundle-branch block vs. No bundle-branch block was evaluated on 3-year posthospital mortality (p=<0.001). Complete bundle-branch block complicating acute myocardial infarction was associated with significantly higher hospital (32% vs 10%) and 3-year posthospital mortality (37% vs 18%, p<0.001).
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