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Table 2 Comparison of LA function measurements

From: Incremental value of three-dimensional echocardiography for evaluating left atrial function in patients with coronary slow flow phenomenon: a case control study

 

Controls (n = 45)

CSFP (n = 60)

P-value

LA 2D volumes measurements

 LA 2D Volmax (mL)

47.31 ± 12.31

54.53 ± 13.59

0.006

 LA 2D Volp (mL)

32.96 ± 9.69

38.97 ± 11.52

0.006

 LA 2D Volmin (mL)

20.56 ± 6.25

26.11 ± 9.61

0.001

 LA 2D total ejection fraction (%)

56.83 ± 6.08

52.52 ± 9.99

0.001

 LA 2D active ejection fraction (%)

38.74 ± 6.79

33.60 ± 9.77

0.003

 LA 2D passive ejection fraction (%)

27.64 ± 6.75

26.40 ± 9.57

0.46

LA 3D volumes measurements

 LA 3D Volmax (mL)

49.29 ± 8.23

54.78 ± 10.78

0.007

 LA 3D Volp (mL)

34.52 ± 6.11

39.31 ± 8.64

0.003

 LA 3D Volmin (mL)

21.75 ± 4.89

26.90 ± 7.05

< 0.001

 LA 3D total ejection fraction (%)

56.40 ± 3.03

51.38 ± 3.85

< 0.001

 LA 3D active ejection fraction (%)

37.13 ± 6.42

31.78 ± 6.24

< 0.001

 LA 3D passive ejection fraction (%)

29.94 ± 5.09

28.37 ± 4.57

0.12

  1. Values shown are means±SD
  2. Abbreviation: LA left atrium, 2D two-dimensional, 3D three-dimensional, LA Volmax maximal LA volume in ventricular systole just before mitral valve opening, LA Volmin minimal LA volume after mitral valve closure, LA Volp LA volume at the onset of the P wave on electrocardiography