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Table 2 Echocardiographic features

From: Echocardiographic markers of inducible myocardial ischemia at baseline evaluation preparatory to exercise stress echocardiography

Variables

NO

YES

p

Total study population (201 patients)

Myocardial ischemia (168 patients)

Myocardial ischemia (33 patients)

LV EDD (ml/m2)

2.6 ± 0.3

2.7 ± 0.3

0.02

2.6 ± 0.3

LV ESD (ml/m 2)

1.6 ± 0.3

1.6 ± 0.4

0.46

1.6 ± 0.3

LV EDV (ml/m2)

49 ± 12

51 ± 13

0.45

49 ± 13

LV ESV (ml/m2)

18 ± 5

21 ± 9

0.02

19 ± 6

Relative wall thickness

0.39 ± 0.06

0.36 ± 0.07

0.009

0.38 ± 0.06

Concentric LV geometry (%)

21

10

0.12

19

LV mass index (g/m 2.7)

42 ± 11

40 ± 7

0.40

41 ± 10

LV hypertrophy (%)

16

15

0.89

16

LV stroke volume (ml)

59 ± 19

57 ± 15

0.60

59 ± 18

LV ejection fraction (%)

63 ± 7

60 ± 9

0.06

62 ± 7

LV CESS (dynes/cm2)

120 ± 34

150 ± 53

< 0.001

125 ± 40

Peak S’ (cm/sec)

9.7 ± 1.7

8.7 ± 1.7

0.001

9.6 ± 1.7

Impaired S’ (%)

17

36

0.009

20

Peak E’ (cm/sec)

11.5 ± 2.6

10.8 ± 2.7

0.19

11.4 ± 2.6

E wave of transmitral flow (cm/sec)

70 ± 17

72 ± 23

0.44

70 ± 18

A wave of transmitral flow (cm/sec)

74 ± 18

77 ± 17

0.28

74 ± 18

E / A ratio

0.98 ± 0.29

0.95 ± 0.30

0.60

0.88 ± 0.23

E / E’ ratio

6.4 ± 2.3

7.0 ± 2.7

0.14

6.5 ± 2.3

LV diastolic dysfunction (%)

23

27

0.75

23

Grade I

19

18

 

35

Grade II

4

9

 

4

Grade III

0

0

 

0

Maximal left atrial volume (ml/ m2)

23.4 ± 8.4

22.9 ± 9.0

0.60

23.2 ± 8.6

Left atrial systolic force (Kdynes)

14.5 ± 7.9

17.8 ± 9.7

0.01

15.0 ± 8.3

  1. CESS circumferential end-systolic stress, EDD end-diastolic diameter, EDV end-diastolic volume, ESD end-systolic diameter, ESV end-systolic volume, LV left ventricular, Peak E’ early diastolic Tissue Doppler velocity of mitral annulus, Peak S’ peak mitral annular systolic velocity (Tissue Doppler Imaging), Sc stress corrected