Key result
Second- or third-degree AV block linked to ~200% higher in-hospital mortality after first Q-wave MI.
Why the study?
Does the development of second- or third-degree atrioventricular block predict in-hospital mortality in patients with a first Q-wave myocardial infarction?
Population
705 successive patients admitted with a first Q-wave anterior or inferior myocardial infarction
Comparison
Second- or third-degree atrioventricular block vs no block
Design
Observational cohort study
Follow-up
In-hospital
Authors
Loading...
AV block supports prognostic stratification in first Q-wave MI; leaves open whether it is causal or modifiable by intervention.
Observational (n=705)
Does the development of second- or third-degree atrioventricular block predict in-hospital mortality in patients with a first Q-wave myocardial infarction?
Absolute Event Rate: 27.9% vs 9.3%
Second- or third-degree atrioventricular block is a significant independent predictor of in-hospital mortality in patients with acute anterior or inferior myocardial infarction.
McDonald et al. (1990) conducted an observational in First Q-wave myocardial infarction of the anterior or inferior wall (n=705). Second- or third-degree atrioventricular block vs. No atrioventricular block was evaluated on In-hospital mortality. Second- or third-degree atrioventricular block was associated with higher in-hospital mortality compared to no block (27.9% vs 9.3%) in patients with a first Q-wave myocardial infarction.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: