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Updated: Aug 10, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
Published on: May 21, 2017
Insights
Aortic stenosis progresses in most adults with the condition, leading to a reduced aortic valve area. This progression can occur relatively quickly, within 27-29 months, highlighting the need for monitoring.
Area of Science:
- Cardiology
- Valvular Heart Disease
Background:
- Aortic stenosis (AS) is a common valvular heart disease.
- Understanding the progression of AS in adults without surgical intervention is crucial for patient management.
Purpose of the Study:
- To assess the progression of aortic valve stenosis in adult patients with isolated AS who did not undergo aortic valve surgery.
Main Methods:
- Retrospective analysis of 11 adult patients with AS.
- Two cardiac catheterizations were performed on each patient, with a mean interval of 59 months.
- Measurements included aortic valve area, left ventricular peak systolic pressure, and left ventricular-aortic pressure gradient.
Main Results:
- Progressive aortic stenosis was observed in 10 out of 11 patients.
- A significant decrease in mean aortic valve area (1.2 to 0.7 sq cm) was noted (P < 0.005).
- Significant increases in left ventricular peak systolic pressure (149 to 199 mm Hg, P < 0.01) and left ventricular-aortic pressure gradient (31 to 75 mm Hg, P < 0.005) were recorded.
Conclusions:
- Progressive aortic valve stenosis occurs in adults with isolated AS.
- A significant reduction in aortic valve area can develop within 27-29 months.
- Changes in pressure gradients may not always directly correlate with aortic valve area changes due to cardiac output variations.
Abstract:
We assessed progressive stenosis of the aortic valve in 11 adult patients (mean age of 48 years) with aortic stenosis who had undergone two cardiac catheterizations without intervening aortic valve surgery. The mean time between cardiac catheterization was 59 months (range 20 to 133). No patients had mitral valve disease. Two patients had coronary artery disease. The results showed that progressive stenosis of the aortic valve occurred in 10 of 11 patients with a significant decrease in the calculated mean aortic valve area from 1.2 +/- 0.2 sq cm to 0.7 +/- 0.1 sq cm (P less than 0.005); a significant increase in mean left ventricular peak systolic pressure from 149 +/- 8 mm Hg to 199 +/- 3 mm Hg (P less than 0.01), and a significant increase in mean left ventricular aortic pressure gradient from 31 +/- 4 mm Hg to 75 +/- 13 mm Hg (P less than 0.005). On an individual basis, the change in left ventricular pressure and the left ventricular-aortic gradient did not always reflect the decrease in aortic valve area because of variations in cardiac output. The shortest period of time in which progression of aortic stenosis occurred was 27 to 29 months. Thus, progressive stenosis of the aortic valve occurs in adults with isolated aortic valvular stenosis. Significant decrease in the aortic valve area can develop in as short a period as 27 to 29 months.
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