Table 3 KCG and Echo measurements for each perfusion level (5, 10, and 20 μg/kg.min) of dobutamine.

SV (ml)

61.2 ± 12.0

71.8 ± 13.0^‡

82.5 ± 19.0^‡

84.7 ± 18.0

CO (l/min)

4.1 ± 0.8

4.7 ± 0.8^‡

6.4 ± 1.0^‡

8.8 ± 1.9^‡

VTI (cm)

20.2 ± 2.6

24.3 ± 3.3^‡

27.7 ± 2.8^‡

28.1 ± 3.3

VTI MAX (m/s)

0.98 ± 0.13

1.26 ± 0.24^‡

1.72 ± 0.22^‡

1.85 ± 0.25^†

HR (bpm)

70.6 ± 10.3

72.4 ± 10.4

87.3 ± 16.5^‡

115.2 ± 21.6^‡

\(P{max}_{Tot}^{SCG}\) (mJ/s)

17.8 ± 12.0

96.6 ± 82.0^‡

200 ± 158^†

320.1 ± 289

\(P{max}_{Tot}^{BCG}\) (mJ/s)

0.8 ± 0.6

3.5 ± 2.7^‡

4.8 ± 2.8*

6.8 ± 4.7

\(i{K}_{Tot}^{SCG}\) (mJ.s)

0.09 ± 0.05

0.23 ± 0.17^‡

0.36 ± 0.20^†

0.38 ± 0.20

\(i{K}_{Tot}^{BCG}\) (mJ.s)

0.010 ± 0.006

0.018 ± 0.007*

0.025 ± 0.010^†

0.030 ± 0.010

\(i{K}_{Tot}^{SCG}\) * HR (mJ.s/min)

5.7 ± 3.6

16.4 ± 13.2^‡

31.0 ± 18.6^‡

42.3 ± 29.6

\(i{K}_{Tot}^{BCG}\) * HR (mJ.s/min)

0.68 ± 0.41

1.30 ± 0.61*

2.0 ± 0.92^‡

3.4 ± 1.9^‡