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Table 3 Comparison of the parameters of LV function and perfusion in two subgroups

From: Non-invasive evaluation of myocardial reperfusion by transthoracic Doppler echocardiography and single-photon emission computed tomography in patients with anterior acute myocardial infarction

Parameters of LV function recovery Preserved CFR (N = 19) Impaired CFR (N = 25) p value
72 hours after reperfusion    
TPD at stress (%) 19.68 (12.77) 37.76 (11.59) < 0.001
TPD at rest (%) 12.58 (1.22) 30.16 (11.32) < 0.001
LVEF (%) (3D) 47.78 (8.99) 40.79 (7.25) 0.007
LV ESV (ml) (3D) 64.32 (22.97) 74.86 (16.11) 0.084
LV EDV (ml) (3D) 109.06 (21.90) 128.10 (24.15) 0.011
WMSI at rest 1.74 (0.29) 1.89 (0.17) < 0.001
WMSI LDDE 1.48 (0.27) 1.80 (0.22) < 0.001
At 5 months follow-up    
CFR 2.61 (0.40) 2.06 (0.33) < 0.001
TPD at stress (%) 8.74 (9.44) 28.12 (9.72) < 0.001
TPD at rest (%) 5.26 (6.14) 23.28 (12.19) < 0.001
LVEF (%) (3D) 49.78 (8.70) 40.36 (7.90) 0.001
LV ESV (ml) (3D) 59.28 (2.18) 80.04 (25.10) 0.006
LV EDV (ml) (3D) 113.39 (25.28) 133.72 (3.59) 0.026
WMSI at rest 1.47 (0.30) 1.81 (0.20) < 0.001
WMSI LDDE 1.30 (0.28) 1.76 (0.25) < 0.001
Contractile reserve (difference ≥ 0.25 of WMSI)    
WMSI at rest (AMI) - WMSI at rest (at follow-up) 0.27 (0.19) 0.07 (0.10) < 0.001
WMSI at rest (AMI) - WMSI LDDE (AMI) 0.25 (0.13) 0.08 (0.09) < 0.001
WMSI at rest (AMI) - WMSI LDDE (at follow-up) 0.43 (0.20) 0.13 (0.16) < 0.001
  1. Data are mean (SD)
  2. CFR - coronary flow reserve; LV- left ventricular; LVEF - left ventricular ejection fraction; LV ESV - left ventricular end-systolic volume; LV EDV - left ventricular end-diastolic volume; 3D - three-dimensional echocardiography; WMSI - wall motion score index; WMSI LDDE - wall motion score index at low-dose dobutamine echocardiography; WMSI at rest - WMSI LDDE - difference ≥ 0.25 between WMSI at rest and WMSI at LDDE indicates the presence of contractile reserve; WMSI at rest (AMI) - WMSI at rest (at follow-up) - difference of WMSI ≥ 0.25 indicates the myocardial viability; TPD% - total perfusion defect (%)