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Table 2 Hemodynamics and CMR indices

From: Mechanism of decreased sensitivity of dobutamine associated left ventricular wall motion analyses for appreciating inducible ischemia in older adults

Measure

Group I (n = 232)

Group II (n = 28)

Group III (n = 18)

p-value*

Rest

Heart rate (beats/min.)

65 (0.74)**

63.64 (2.06)

65.73 (2.81)

0.77

Systolic blood pressure (mmHg)

139.81 (1.18)

137.29 (3.29)

136.67 (4.58)

0.64

Diastolic blood pressure (mmHg)

79.53 (0.82)

75.29 (2.29)

78.80 (3.13)

0.22

Mean arterial pressure (mmHg)

99.58 (0.82)

95.95 (2.27)

98.09 (3.21)

0.30

Rate pressure product

9108 (133)

8753 (369)

8962 (504)

0.65

Left ventricular end diastolic volume index (ml/m2)

62.2 (1.01)

56.7 (2.81)

59.3 (3.91)

0.17

Left ventricular end systolic volume index (ml/m2)

22.2 (0.52)

21.3 (1.31)

22.8 (1.72)

0.72

Left ventricular stroke volume index (ml/m2)

39.4 (0.61)

35.5 (1.52)

36.5 (2.11)

0.03

Ejection fraction (%)

64.2 (0.51)

62.7 (1.41)

62.5 (1.82)

0.46

Cardiac index (ml/min/m2)

2536 (39)

2239 (109)

2380 (149)

0.03

Pulse wave velocity (m/s)

11 (0.47)

9.75 (1.28)

9.96 (1.75)

0.76

Left ventricular mass index (gm/m2)

66 (14)

65.9 (11.32)

71.1 (12.41)

0.35

Left ventricular concentricity

1.09 (0.02)

1.19 (0.05)

1.26 (0.07)

0.02

Stress

Peak heart rate (beats/min.)

127 (1.12)

129.81 (3.16)

126.92 (4.39)

0.63

Peak systolic blood pressure (mmHg)

130 (1.75)

126.37 (4.92)

131.93 (6.84)

0.74

Peak diastolic blood pressure (mmHg)

70.79 (1.21)

68.04 (3.40)

75.14 (4.72)

0.47

Peak mean arterial pressure (mmHg)

90.57 (1.27)

87.48 (3.58)

94.07 (4.97)

0.54

Peak rate pressure product

16400 (251)

16381 (706)

16804 (1982)

0.92

Left ventricular end diastolic volume index (ml/m2)

51.60 (0.78)

50.99 (2.15)

54.97 (2.98)

0.52

Left ventricular end systolic volume index (ml/m2)

13.68 (0.33)

14.53 (0.87)

18.36 (1.24)

0.001

Left ventricular stroke volume index (SVI) (ml/m2)

37.85 (0.62)

36.23 (1.69)

36.64 (2.35)

0.61

Ejection fraction (%)

73.3 (0.50)

71.2 (1.42)

66.5 (1.93)

0.002

Cardiac index (l/min/m2)

4800 (83)

4688 (232)

4644 (316)

0.82

Pulse wave velocity (m/s)

11.51 (0.61)

12.44 (1.69)

16.27 (2.39)

0.14

  1. *Analysis of variance test of equality of three groups. The p-values presented are an overall test that the three groups are equal. Abbreviations:, EDV, End diastolic volume; EF, Ejection fraction; PVA, Pressure volume area; PWV, Pulse wave velocity; SW, Stroke work.