Why the study?
Does QTc dispersion predict cardiac death in patients with peripheral vascular disease?
Population
49 patients with peripheral vascular disease and no clinically obvious cardiac disease, mean age 62 years.
Design
Cohort, Observers measuring QT intervals were blinded to patient diagnosis and…
Follow-up
5 years (mean 66 months)
Authors
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QTc dispersion ≥60 ms may flag cardiac death risk in asymptomatic PVD; hypothesis-generating and requires prospective validation before clinical adoption.
Does QTc dispersion predict cardiac death in patients with peripheral vascular disease?
QTc dispersion ≥60 ms on a standard 12-lead ECG is a strong, non-invasive predictor of cardiac death in patients with peripheral vascular disease who lack cardiac symptoms.
Darbar et al. (1996) studied this question.
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