Key result
Novel catheter-tip modification aims to improve retrograde LV catheterization success in congenital AS.
Why the study?
The retrograde arterial route for left ventricular pressure measurement in congenital aortic stenosis has a reported success rate of only 50 to 60 percent, motivating development of a new catheter-tip modification.
Does a new catheter-tip modification improve the success rate of retrograde catheterization of the left ventricle in patients with congenital aortic stenosis?
Does a new catheter-tip modification improve the success rate of retrograde catheterization of the left ventricle in patients with congenital aortic stenosis?
A novel catheter-tip modification was developed to improve the historically low success rate of retrograde left ventricular catheterization in patients with congenital aortic stenosis.
May facilitate retrograde LV access in congenital aortic stenosis; leaves open whether success exceeds historical rates in practice.
ACCURATE assessment of congenital aortic stenosis before and after operation requires simultaneous measurement of the systolic-pressure gradient between the left ventricle and aorta and the output of the left ventricle during a steady state. Many methods have been used for the measurement of pressure in the left ventricle.1 2 3 4 5 6 7 8 9 The retrograde arterial route from right brachial or axillary site is safest.∥10 However, the reported success rate has been only 50 or 60 per cent in patients with aortic stenosis.11 , 12 The increased efficiency of a catheter-tip modification developed in our laboratory and presented here has contributed to the improved results noted below. . . .
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Honick et al. (1962) studied Congenital aortic stenosis. Catheter-tip modification was evaluated. A new catheter-tip modification was developed to improve upon the historical 50 to 60% success rate of retrograde catheterization of the left ventricle in congenital aortic stenosis.
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