Congenital aortic stenosis in adults: rate of progression and predictors of clinical outcome.

Background: Little data are available on the natural history of young adults with congenital valvular aortic stenosis (AS). The aim of the present study was to determine the progression rate of AS in young adults, and to identify predictors of stenosis progression and outcome.

Methods: Retrospective study of all patients seen at a single centre diagnosed with congenital AS (> or = 2.