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Table 4 Results of single regression analyses to evaluate the association between hemodynamic and echocardiographic variables

From: Influence of heart rate on right ventricular function assessed by right heart catheterization and echocardiography in healthy anesthetized dogs

Variables Ees Ees/Ea
regression coefficient (95% CI) p regression coefficient (95% CI) p
HR (bpm) 0.01 (0.00 – 0.02) 0.039 0.00 (0.00 – 0.01) 0.642
RVEDA index (cm2/kg0.624) -1.79 (-4.03 – 0.45) 0.114 0.19 (-0.85 – 1.23) 0.713
RVESA index (cm2/kg0.628) -0.80 (-4.69 – 3.09) 0.680 -0.68 (-2.41 – 1.05) 0.431
RV FACn (%/kg−0.097) -0.09 (-0.17 – -0.02) 0.010 0.05 (0.01 – 0.08) 0.006
TAPSEn (mm/kg0.284) -0.34 (-0.84 – 0.16) 0.176 0.20 (-0.02 – 0.42) 0.070
RV s’ (cm/s) -0.07 (-0.34 – 0.21) 0.630 0.21 (0.11 – 0.32)  < 0.001
RV-SL3seg (%) -0.06 (-0.20 – 0.09) 0.414 0.10 (0.04 – 0.15) 0.002
RV-SrL3seg (s−1) 0.60 (-0.74 – 1.94) 0.374 1.14 (0.66 – 1.62)  < 0.001
RV-SL6seg (%) 0.03 (-0.14 – 0.20) 0.745 0.08 (0.01 – 0.15) 0.033
RV-SrL6seg (s−1) 2.15 (0.58 – 3.71) 0.008 1.08 (0.39 – 1.76) 0.003
  1. 3seg right ventricular free wall analysis, 6seg right ventricular global analysis, HR heart rate, RV FACn right ventricular fractional area change normalized by body weight, RV s’ peak systolic myocardial velocity of the lateral tricuspid annulus, RVEDA index end-diastolic right ventricular area normalized by body weight, RVESA index end-systolic right ventricular area normalized by body weight, RV-SL right ventricular strain, RV-SrL systolic right ventricular strain rate, TAPSEn tricuspid annular plane systolic excursion normalized by body weight