Table 2

Radionuclide Variables by Classification (expressed as percent of left ventricle)

Overall (n = 84)Match (n = 48)Mismatch-Stunned (n = 21)Mismatch-Hyperkinetic (n = 15)p Valuea
Perfusion
Myocardium at risk31 ± 2030 ± 1939 ± 2125 ± 200.08
Infarct size13 ± 1513 ± 1513 ± 1614 ± 14NS
Salvage18 ± 1717 ± 1626 ± 1812 ± 160.03
Left Ventricular Function
Predicted LVEF0.52 ± 0.070.52 ± 0.070.52 ± 0.070.52 ± 0.06NS
Discharge LVEF0.52 ± 0.110.52 ± 0.080.41 ± 0.080.64 ± 0.06< 0.0001
6-week LVEF0.52 ± 0.100.52 ± 0.100.47 ± 0.100.58 ± 0.090.007
6 week vs. discharge LVEF0 ± 0.080 ± 0.060.06 ± 0.08−0.06 ± 0.06< 0.0001
  • a Between-group analysis of variance. Data are presented as mean values ± SD. LVEF = left ventricular ejection fraction.