[Subvalvular aortic stenosis. Apropos of 3 cases].


The three cases reported here illustrate the most frequent varieties of infra-valvular congenital aortic stenosis secondary to a fixed obstacle: such as a thin membrane located a few millimeters under the aortic ring; such as a fibro-muscular membrane at some distance of the ring; such as an infra-aortic fibro-muscular tunnel. The clinical symptoms and… (More)


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