Baseline characteristics of groups with maintained or increased (ΔEF+) and decreased (ΔEF−) ejection fraction on follow up after aortic valve replacement
| ΔEF+ (n=16) | ΔEF− (n=10) | p Value | |
| Age (years) | 56 (12) | 58 (17) | 0.63 |
| Severity grade of AR | 3–4 | 3–4 | |
| Follow up (months) | 7 (8) | 5 (5) | 0.65 |
| Exercise capacity (min) | 9.0 (2.4) | 10.0 (2.5) | 0.38 |
| Exercise capacity (METs) | 8.2 (2.4) | 9.2 (2.6) | 0.42 |
| Peak RPP (×103 beats.mm Hg) | 29 (7.2) | 34 (4.6) | 0.11 |
| Resting LVIDD (mm) | 56 (9) | 57 (5) | 0.68 |
| Resting LVIDS (mm) | 40 (8) | 42 (4) | 0.72 |
| Resting FS (%) | 28 (5) | 27 (4) | 0.88 |
| Resting LV end diastolic volume (cm3) | 179 (79) | 176 (42) | 0.85 |
| Resting LV end systolic volume (cm3) | 93 (52) | 77 (26) | 0.40 |
| Resting LV ejection fraction (%) | 50 (7) | 57 (6) | 0.02 |
Values are mean (SD).
AR, aortic regurgitation; ΔEF, change in ejection fraction on follow up; FS, fractional shortening; LV, left ventricular; LVIDD, left ventricular internal diameter in diastole; LVIDS, left ventricular internal diameter in systole; METs, metabolic equivalents on exercise; RPP, rate–pressure product.