Table 2

Baseline Parameters Characterizing Infarct Size in Patients With Diagnostic and Nondiagnostic ECGs at Baseline

ECGNondiagnostic (n = 10)Diagnostic (n = 36)p Value
LVEDV, ml144 ± 35165 ± 260.04
LVESV, ml69 ± 1987 ± 200.012
LV mass, g101 ± 19124 ± 300.02
EF, %52 ± 547 ± 80.08
Absolute MI size, g8.6 ± 7.022.5 ± 15.9<0.0001
Relative MI size, % of LV mass9.2 ± 6.317.9 ± 11.70.03
Transmurality score10.4 ± 6.217.7 ± 8.30.009
AAR, g25.8 ± 11.940.1 ± 21.00.015
Salvage index0.6 ± 0.10.4 ± 0.50.16
MVO4 (36.4)24 (67.0)0.09
Max troponin I, ng/ml44 ± 4786 ± 750.09
Max CK-MB, U/l127 ± 58234 ± 1480.03

Values are mean ± SD or n (%).

AAR = area at risk; ECGs = electrocardiograms; EF = ejection fraction; LV = left ventricular; LVEDV = left ventricular end-diastolic volume; LVESV = left ventricular end-systolic volume; MVO = microvascular obstruction; other abbreviations as in Table 1.

  • Nondiagnostic versus diagnostic.