Why the study?
Does the presence of left or right bundle-branch block increase the risk of in-hospital death in patients with acute myocardial infarction?
Population
297,832 patients with acute myocardial infarction who had left, right, or no bundle-branch block on initial…
Comparison
Presence of left or right bundle-branch block on… vs No bundle-branch block on initial…
Design
Cohort
Follow-up
in-hospital
Authors
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BBB in AMI signals higher in-hospital mortality risk; leaves open whether targeted strategies improve outcomes.
Does the presence of left or right bundle-branch block increase the risk of in-hospital death in patients with acute myocardial infarction?
In patients with acute myocardial infarction, both right and left bundle-branch blocks are associated with significantly increased in-hospital mortality and lower rates of guideline-directed medical therapy compared to those without BBB.
Alan S. Go (1998) studied this question.
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