TAV, N=177 BAV, N=59 p-value
Median follow-up (years) 2.40 (1.48-3.93) 3.17 (1.92-4.92) 0.02
Baseline AS grade >0.9
Mild 120 (68%) 40 (68%)
Moderate 57 (32%) 19 (32%)
AS grade at last follow-up 0.062
None 8 (4.5%) 7 (12%)
Mild 50 (28%) 15 (25%)
Moderate 69 (39%) 15 (25%)
Severe 50 (28%) 22 (37%)
Baseline Mean Gradient (mmHg) 16 (13-20) 18 (14-22) 0.2
Baseline Peak Velocity (m/s) 2.70 (2.50-3.00) 2.80 (2.50-3.11) 0.5
Baseline Aortic Valve Area (cm2) 1.30 (1.10-1.60) 1.35 (1.18-1.70) 0.2
Baseline AVA Index (cm2/m2) 0.72 (0.59-0.86) 0.70 (0.60-0.82) 0.7
Progression Rate of Mean Gradient (mmHg/year) 2.3 (0.6-5.0) 1.5 (0.5-4.1) 0.5
Progression Rate of Peak Velocity (m/s/year) 0.14 (0.00-0.31) 0.10 (0.04-0.26) 0.7
Progression of AS grade 105 (59%) 40 (68%) 0.2
Rapid Progressors (>2.85mmHg/year) 74 (43%) 21 (36%) 0.4