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AS etiology
Congenital vs. Degenerative/Rheumatic aortic stenosis
Symptom/Finding | Congenital or Degenerative? |
---|---|
2 cusps with a football shaped opening seen on PSAX | Congenital AS (bicuspid) |
A raphe or underdeveloped cusp may be present. | Congenital AS (bicuspid) |
Cusps will appear thickened and may exhibit doming | Congenital AS (bicuspid) |
Post stenotic dilatation of the aortic root and ascending aorta | Both |
Thickening and calcification of the cusps | Degenerative/rheumatic |
Decreased excursion of the cusps | Degenerative/rheumatic |
MAC | Degenerative/rheumatic |
LVH – long-standing AS | Both |
LAE due to volume and pressure overload | Degenerative/rheumatic |
Late stage: LV dilatation, decreased systolic function, LV failure | Degenerative/rheumatic |