Key result
Transcutaneous Doppler detects abnormal carotid flow in 100% of HSS patients vs. other heart diseases.
Why the study?
The clinical evaluation of hypertrophic subaortic stenosis lacks a validated noninvasive method to detect its distinct flow pattern in the carotid artery.
Does a transcutaneous Doppler velocity probe accurately identify hypertrophic subaortic stenosis by detecting abnormal phasic carotid artery flow?
Population
12 patients with hypertrophic subaortic stenosis and 94 patients with other cardiovascular disease
Comparison
Phasic carotid artery flow in hypertrophic subaortic stenosis vs other cardiovascular disease
Design
Cross-sectional study using transcutaneous Doppler velocity probe
Authors
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Carotid Doppler may aid noninvasive detection of hypertrophic subaortic stenosis; leaves open prospective validation of diagnostic utility.
Cross-Sectional (n=106)
Does a transcutaneous Doppler velocity probe accurately identify hypertrophic subaortic stenosis by detecting abnormal phasic carotid artery flow?
Absolute Event Rate: 100% vs 0%
Transcutaneous Doppler velocity recording of phasic carotid flow is a valid clinical tool for evaluating hypertrophic subaortic stenosis, identifying abnormal flow patterns even when characteristic pulse contours are absent.
Claude R. Joyner (1971) conducted a cross-sectional in Hypertrophic subaortic stenosis (n=106). Transcutaneous Doppler velocity probe vs. Patients with other cardiovascular disease was evaluated on Abnormal abrupt decrease in midsystolic flow. A transcutaneous Doppler velocity probe detected an abnormal carotid flow profile in 100% of patients with hypertrophic subaortic stenosis, compared to 0% of 94 patients with other cardiac diseases.
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