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Table 4 Comparison of left ventricular systolic and diastolic function at rest, during exercise, and recovery phase

From: Value of exercise stress electrocardiography for stratification of exercise capacity and left ventricular systolic and diastolic function on coronary slow flow: case-control study

 

Controls

(n = 24)

CSFP ExECG (−) (n = 24)

CSFP ExECG (+) (n = 6)

P-value

LV end-diastolic volume (ml)

 Baseline

85.44 ± 17.27

76.23 ± 16.66

76.90 ± 14.58

0.13

 Exercise

83.87 ± 17.35

73.96 ± 19.47

77.06 ± 15.67

0.22

 Recovery

84.34 ± 16.61

76.42 ± 16.87

77.29 ± 15.54

0.10

P-value

0.84

0.82

0.96

 

LV ejection fraction (%)

 Baseline

63.67 ± 2.37

63.00 ± 4.00

65.16 ± 3.39

0.11

 Exercise

68.00 ± 2.89*

68.50 ± 3.29*

67.35 ± 2.24

0.37

 Recovery

64.00 ± 3.31#

63.46 ± 3.88#

65.00 ± 2.75

0.30

P-value

< 0.001

< 0.001

0.09

 

LV GLS (%)

 Baseline

−21.30 ± 2.37

−19.77 ± 2.43

−19.50 ± 1.13

0.05

 Exercise

−23.18 ± 2.46*

−23.85 ± 2.77*

−17.29 ± 1.76*

< 0.001

 Recovery

−21.00 ± 1.94#

−19.17 ± 2.52#

−16.84 ± 1.40*

< 0.001

P-value

< 0.001

< 0.001

0.02

 

LA volume index (ml/m2)

 Baseline

29.24 ± 7.33

31.08 ± 5.69

31.53 ± 6.56

0.73

 Exercise

28.72 ± 7.58

30.48 ± 6.21

31.83 ± 6.11

0.51

 Recovery

29.05 ± 7.21

30.91 ± 6.28

31.55 ± 6.00

0.69

P-value

0.63

0.70

0.65

 

Mitral E (cm/s)

 Baseline

72.42 ± 16.79

72.58 ± 18.10

58.67 ± 8.96

0.17

 Exercise

95.83 ± 17.40*

92.08 ± 30.27*

94.00 ± 10.32*

0.86

 Recovery

73.83 ± 14.65#

65.33 ± 15.52*#

62.67 ± 8.50#

0.08

P-value

< 0.001

< 0.001

< 0.001

 

Mitral average e’ (cm/s)

 Baseline

8.33 ± 1.93

7.33 ± 1.63

7.00 ± 0.89

0.08

 Exercise

11.75 ± 2.67*

10.36 ± 2.19*

9.67 ± 0.52*

0.06

 Recovery

8.00 ± 1.77#

7.92 ± 1.64#

8.33 ± 0.52#

0.85

P-value

< 0.001

< 0.001

0.002

 

Mitral average E/e’

 Baseline

9.08 ± 2.65

8.09 ± 0.87

7.80 ± 2.90

0.18

 Exercise

8.52 ± 2.11

8.70 ± 2.91

9.79 ± 1.60*

0.52

 Recovery

9.45 ± 1.83

8.53 ± 2.38

7.54 ± 1.14#

0.09

P-value

0.31

0.37

0.02

 
  1. Values shown are mean ± SD. Abbreviations: LV, left ventricle; GLS, global longitudinal strain; LA, left atrium; E, early diastolic flow velocity; A, late diastolic flow velocity; e’, early diastolic annular velocity
  2. *P < 0.05 vs. baseline; #P < 0.05 vs. exercise