Illustration depicting<unk> <unk>  is most commonly caused by age-related progressive calcification (>50% of<unk> es), with a mean age of 65 to 70 years. Another major cause of<unk>  is the calcification of a congenital bicuspid aortic valve or, more rarely, a congenital unicuspid aortic valve. Those with unicuspid aortic valves typically need intervention when very young, often as a newborn. While those with congenital bicuspid aortic valve make up 30-40% of those presenting during adulthood and typically presenting earlier (ages 40+ to 50+) than those with tricuspid aortic valves (65+). Acute rheumatic fever post-inflammatory is the cause of less than 10% of<unk> es. Rare causes of<unk>  include Fabry disease, systemic lupus erythematosus, Paget disease, high blood uric acid levels, and infection.
Aortic stenosis
Hypertrophic cardiomyopathy
Mitral stenosis
Aortic regurgitation
Tricuspid valve stenosis
Tricuspid regurgitation
Mitral regurgitation
Pulmonary valve stenosis