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Table 1 Haemodynamic and phsyiological changes in ventricular function with DS-MR

From: Dobutamine stress MR in Tetralogy of Fallot with significant pulmonary regurgitation, safety, feasibility and haemodynamic effects

 

Baseline n = 26 (mean ± SD)

Dobutamine 10 n = 24 (mean ± SD)

Dobutamine 20 n = 19 (mean ± SD)

Heart Rate bmp

66.5 ± 9.2

91 ± 18.8

117.5 ± 14.4

Systolic BP mmhg

125 ± 14

144 ± 18

155 ± 22

Diastolic BP mmhg

70 ± 6

76 ± 7

77 ± 6

LV EDV ml/m2

77.4 ± 14.9

67.6 ± 16.4

54.66 ± 12.8

LV ESV ml/m2

32.9 ± 10.3

23.9 ± 8.9

16.3 ± 5.62

LV SV ml/m2

43.7 ± 7.4

43.82 ± 12.1

38.3 ± 9.2

LV CO l/mon/m2

2.8 ± 0.45

3.97 ± 0.9

4.5 ± 1.0

LV EF %

57.8 ± 7.3

64.7 ± 10.7

70.4 ± 6.3

RV EDV ml/m2

127.6 ± 25.93

123.8 ± 26.9

110.8 ± 25.3

RV ESV ml/m2

58.4 ± 17.6

50.0 ± 20.0

45.4 ± 14.9

RV SV ml/m2

69.2 ± 11.9

73.7 ± 14.6

65.4 ± 14.4

RV CO l/min/m2

4.5 ± 1

6.82 ± 1.85

7.79 ± 1.7

RV EF %

55 ± 6.8

60.4 ± 9.43

59.8 ± 7.7

PR (%)

43 ± 15.4

44.9 ± 11.2

43.6 ± 12.1

  1. BP: blood pressure, LV: left ventricle, RV: right ventricle, EDV: end diastolic volume, ESV: end systolic volume, SV: stroke volume, CO: cardiac output, EF: ejection fractions, PR: pulmonary regurgitant fraction.
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Journal of Cardiovascular Magnetic Resonance

ISSN: 1532-429X

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