[Classification of congenital aortic stenosis].

Recent epidemiological data relating congenital stenosis of the aorta are cited. An anatomical criterion is used in the formation of three classification groups, each containing a number of different types. There are no clear-cut clinical pictures corresponding to these anatomical varieties, however, so that differential diagnosis is dependent on the haemodynamic and contrastographic data. There are, on the other hand, clinical signs that serve as pointers to the site of the stenosis.