Table 4: Echocardiographic functional parameters during stress before and after PCI.

Pre PCI (mean ± SD) Post PCI (mean ± SD) P
HR (bpm) 120 ± 13.1 131 ± 12.2 0.05
WMSI 1.5 ± 0.3 1.5 ± 0.4 0.75
LV EDV (mL) 84.7 ± 31.9 84.7 ± 42.5 1
LV ESV (mL) 41 ± 22.6 36 ± 28.4 0.17
LV SV (mL) 43.6 ± 11.1 48.7 ± 15.1 0.08
LV EF (%) 53.6 ± 7.8 62 ± 11 0.001
E Wave (m/sec) 64.6 ± 12.7 81.7 ± 36.4 0.2
E Dec. Time (ms) 152 ± 56.3 150 ± 54 0.94
A Wave (m/sec) 95.5 ± 23.4 108 ± 35.4 0.26
E/A Ratio 0.6 ± 0.1 0.8 ± 0.4 0.39
TDI S (cm/sec) 11.4 ± 3.1 12 ± 3.4 0.52
TDI E (cm/sec) 7.8 ± 2.3 11.4 ± 4 0.11
TDI A (cm/sec) 13.3 ± 4.5 14 ± 4.7 0.37
TDI E/E' 7.4 ± 2.3 8.8 ± 4.3 0.70
LV_GLS % - 17.3 ± 4.8 - 17.4 ± 4.5 0.78
A4C SR S - 0.8 ± 0.2 - 1.8 ± 0.6 0.02
A4C SR E 1.2 ± 0.4 1.4 ± 0.8 0.27
A4C SR A 0.9 ± 0.2 1.5 ± 0.5 0.03
A2C SR S - 1.5 ± 0.3 - 1.6 ± 0.7 0.79
A2C SR E 1.2 ± 0.5 1.2 ± 0.5 0.77
A2C SR A 1.5 ± 0.4 1.6 ± 0.5 0.37
A LAX SR S - 1.4 ± 0.5 - 1.7 ± 0.6 0.01
A LAX SR E 1.1 ± 0.6 1.2 ± 0.7 0.27
A LAX SR A 1.4 ± 0.4 1.7 ± 0.6 0.13

PCI: Percutaneous coronary intervention; WMSI: Wall motion score index; LV: Left ventricle; EDV: End diastolic volume; ESV: End systolic volume; SV: Stroke volume;
EF: Ejection fraction; E: Early diastolic filling velocity; A: Late diastolic filling velocity; TDI: Tissue velocity imaging; S: Peak systolic velocity; E: Peak early diastolic velocity;
A: Peak late diastolic velocity; GLS: Global longitudinal strain; SR: Strain Rate; A4C: Apical four chambers view; apical A2C: Two chambers view; A LAX: Apical long axis view.