Table 2 Echocardiographic and ECG variables before discharge.

From: Residual ST-segment elevation to predict long-term clinical and CMR-derived outcomes in STEMI

 

All patients (n = 488)

MACE

p

Yes (n = 92)

No (n = 396)

Echocardiographic variables

LVEF (%)

54.93 ± 10.92

48.08 ± 13.29

56.61 ± 9.55

 < 0.001

LV end-diastolic volume (mL)

108.13 ± 36.1

119.5 ± 44.32

104.84 ± 32.89

0.11

LV end-systolic volume (mL)

53.45 ± 23.5

68.86 ± 29.06

49 ± 19.66

0.002

TAPSE (mm)

20 [18–23]

19 [18–22.5]

20 [19–24]

0.86

E wave velocity (m/s)

0.72 ± 0.21

0.8 ± 0.33

0.7 ± 0.17

0.11

A wave velocity (m/s)

0.74 ± 0.19

0.79 ± 0.21

0.73 ± 0.19

0.13

Left atrium diameter (mm)

35 [32–39]

38 [33–42]

35 [31–38]

0.008

ECG variables

Maximum sum-STE (mm)

11.28 ± 8.17

13.14 ± 9.19

10.85 ± 7.87

0.016

Minimum sum-STE (mm)

2.6 ± 3.01

3.11 ± 3.05

2.48 ± 2.99

0.067

Sum-STE before pPCI (mm)

11.72 ± 8.66

12.75 ± 9.25

11.5 ± 8.53

0.379

Sum-STE after pPCI (mm)

4.96 ± 4.64

5.51 ± 3.74

4.86 ± 4.83

0.469

ST resolution (%)

74.76 ± 26.73

71.67 ± 26.15

75.48 ± 26.84

0.22

Q wave (n of leads)

3 [2, 3]

3 [2–4]

3 [1–3]

 < 0.001

Q-STE (n of leads)

1 [0–2]

1 [0–3]

1 [0–2]

0.003

Q-STE

0–1 leads

316 (64.8)

47 (51)

269 (67.9)

0.002

 ≥ 2 leads

172 (35.2)

45 (49)

127 (32.1)

  1. Categorical variables are presented as a number (percentage). Continuous parametric variables are presented as mean ± standard deviation. Continuous non-parametric variables are presented as median [interquartile range].
  2. LV Left ventricular, LVEF Left ventricular ejection fraction, MACE Major adverse cardiovascular events, pPCI Primary percutaneous coronary intervention, Q-STE Q wave and residual STE > 1 mm, Sum-STE Sum of ST-segment elevation, TAPSE Tricuspid annular plane systolic excursion.
  3. E and A wave velocities were not considered for analyses in patients with atrial fibrillation at the time of echocardiography.
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