Why the study?
Do noninvasive systolic time intervals correlate with peak systolic pressure gradient in patients with valvular aortic stenosis and idiopathic hypertrophic subaortic stenosis?
Population
51 patients, comprising 26 with valvular aortic stenosis and 25 with idiopathic hypertrophic subaortic…
Comparison
Noninvasive measurement of corrected systolic… vs Comparison with peak systolic pressure gradient…
Design
Cross-sectional
Authors
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LVET/IVCT ratio may support noninvasive gradient estimation in valvular aortic stenosis; leaves open prospective validation and utility in idiopathic hypertrophic subaortic stenosis.
Do noninvasive systolic time intervals correlate with peak systolic pressure gradient in patients with valvular aortic stenosis and idiopathic hypertrophic subaortic stenosis?
Noninvasive measurement of the LVET/IVCT ratio correlates strongly with the peak systolic pressure gradient in valvular aortic stenosis, but systolic time intervals are not useful for assessing the gradient in idiopathic hypertrophic subaortic stenosis.
Ibrahim et al. (1973) studied this question.
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