Table 5

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 AR3–43–4
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 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.