[The surgical treatment of critical aortic stenosis in a child by the Ross-Konno technic].

A twenty-nine-day old male infant suffering from critical aortic stenosis underwent aortic valvotomy by cardiopulmonary bypass. At three years of age the aortic stenosis recurred and the child underwent a balloon aortic valvuloplasty, but developed severe aortic insufficiency after the procedure. The critical condition of the patient made aortic valve replacement mandatory. The surgical technique consisted of aortoventriculoplasty with infundibular and valve pulmonary autograft for substituting the aortic root (Ross-Konno technique). As for as we know this is the first report on the Ross-Konno procedure in Spanish journals.