Parameters | Acute MI n=68 | Previous MI n=45 | Control n=101 | P value |
AVAi (cm2/m2/year) | −0.068±0.063* | −0.048±0.053 | −0.042±0.039* | 0.004 |
AVA (cm2/year) | −0.125±0.116* | −0.087±0.093 | −0.078±0.074* | 0.005 |
VTI ratio (/year) | −0.032±0.028* | −0.022±0.024 | −0.022±0.021* | 0.015 |
MG (mm Hg/year) | +3.5±5.0 | +2.7±4.4 | +2.7±4.4 | 0.44 |
Vpeak (m/s/year) | +0.27±0.40 | +0.20±0.30 | +0.16±0.28 | 0.11 |
LVEF (%/year) | +2.5±1.6 | +0.1±5.3 | −0.4±5.8 | 0.07 |
SVi (mL/m2/year) | +2.62±7.27*† | −0.87±3.31† | −0.01±3.92* | 0.0005 |
LVET (s/year) | +0.022±0.040*† | −0.003±0.020 | +0.006±0.026*† | <0.001 |
*P<0.05 for comparison acute MI versus control groups.
†P<0.05 for comparison acute versus previous MI groups.
AVA, aortic valve area; AVAi, indexed aortic valve area; LVEF, left ventricular ejection fraction; LVET, left ventricular ejection time; MG, mean aortic gradient; MI, myocardial infarction; SVi, indexed stroke volume; Vpeak, aortic peak jet velocity; VTI, velocity-time integral.