Why the study?
Does QRS duration ≥130 ms predict overall mortality in patients with low-flow/low-gradient aortic stenosis due to left ventricular systolic dysfunction?
Population
88 consecutive patients with low-flow/low-gradient aortic stenosis due to left ventricular systolic…
Comparison
QRS duration ≥130 ms vs QRS duration <130 ms
Design
Cohort
Follow-up
mean 3.1 (2.2-6.2) years
Authors
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Wider QRS may aid mortality risk stratification in low-flow/low-gradient AS; leaves open whether it guides interventions.
Does QRS duration ≥130 ms predict overall mortality in patients with low-flow/low-gradient aortic stenosis due to left ventricular systolic dysfunction?
In patients with low-flow/low-gradient aortic stenosis, a QRS duration ≥130 ms is common and strongly predicts overall mortality.
Sébag et al. (2014) studied this question.
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