Why the study?
Recent guidelines added RBBB alongside LBBB as an indication for reperfusion in ACS, but the differential prognostic impact between RBBB and LBBB needed evaluation.
Does the presence of RBBB or LBBB impact all-cause mortality in patients with acute coronary syndromes?
Population
3990 consecutive ACS patients in a single-centre registry
Comparison
Baseline normal QRS vs LBBB vs RBBB
Design
Prospective single-centre registry study
Follow-up
one-year
Authors
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RBBB signals higher one-year mortality than LBBB in ACS; supports refined risk stratification but leaves practice change open in observational data.
Does the presence of RBBB or LBBB impact all-cause mortality in patients with acute coronary syndromes?
RBBB is an independent predictor of one-year all-cause mortality in patients with acute coronary syndromes, supporting recent guideline recommendations for aggressive management in this subgroup.
Timóteo et al. (2018) studied this question.
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