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Table 2 Patient cardiac function of the Internal Validation Group Stratified by Acute myocardial infarction (AMI). Patients presenting with non-ST-elevation myocardial infarction (NSTEMI, n = 63) and ST-elevation myocardial infarction (STEMI, n = 92). Data are presented as the percent (%) of total or the 95% confidence interval, where applicable. Data are considered statistically significant if P ≤ 0.05, denoted by * and bolded text

From: Cardiac ultrasomics for acute myocardial infarction risk stratification and prediction of all-cause mortality: a feasibility study

Internal Validation - Patient Cardiac Function Stratified by Acute Myocardial Infarction (AMI)

Variable

NSTEMI (n = 63)

STEMI (n = 92)

P-Value

Left Ventricular Internal Diameter - End Diastole (mm)

46 [45–47]

47 [45–49]

0.38

Left Ventricular Internal Diameter - End Systole (mm)

34 [32–36]

37 [35–39]

0.07

Left Ventricular Mass Index (g/m²)

87 (81–93)

92 (85–98)

0.35

Left Ventricular End-diastole Volume (mL)

94 (86–103)

106 (99–113)

0.06

Left Ventricular End-systole Volume (mL)

47 [40–53]

57 (51–62)

*0.03

Left Ventricular Ejection Fraction (%)

53 (50–56)

48 [45–50]

*<0.01

Left Ventricular Wall Motion Score Index

1.70 (1.56–1.83)

2.00 (1.90–2.11)

*<0.01

Left Ventricular Global Longitudinal Strain (%)

-14.10 (-15.07- -13.12)

-11.86 (-12.64- -11.08)

*<0.01

Left Ventricular Outflow Tract Stroke Volume (mL)

61 (56–66)

55 (51–59)

0.12

e’ Septal

5.90 (5.47–6.33)

6.04 (5.64–6.43)

0.64

e’ Lateral

8.26 (7.51–9.02)

7.79 (7.26–8.32)

0.95

Mitral Valve E Wave (cm/s)

85 (78–91)

83 (77–89)

0.81

MV-A (cm/s)

85 (79–91)

79 (74–84)

0.21

E/A Ratio

1.06 (0.94–1.18)

1.05 (0.96–1.14)

0.92

E/e’ Septal

15.70 (13.71–17.69)

15.06 (13.66–16.45)

0.64

E/e’ Lateral

11.57 (10.19–12.94)

11.63 (10.44–12.82)

0.95

Left Atrial End-systolic Volume Index (mL/m2)

29 [26–31]

23 [21–25]

*<0.01