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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.