Key result
Classic indications for carotid duplex scans such as transient ischemic attack and dizziness had no correlation with disease severity, whereas bruit and known carotid disease were statistically related.
Observational (n=5,001)
Yes
Classic neurologic symptoms such as TIA and dizziness do not correlate with the severity of carotid arterial disease on duplex ultrasound, whereas physical findings like bruit and known history do.
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Questions symptom-based duplex ordering; leaves open whether bruit or known disease better refines indications in prospective cohorts.
Hill et al. (2000) conducted an observational in Carotid arterial disease (n=5,001). Clinical indications and risk factors was evaluated on Relationship between severity of carotid arterial disease and symptoms. Classic indications for carotid duplex scans such as transient ischemic attack and dizziness had no correlation with disease severity, whereas bruit and known carotid disease were statistically related.
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