Skip to main content

Table 2 Hemodynamic and echocardiographic parameters

From: The effects of anesthesia induction and positive pressure ventilation on right-ventricular function: an echocardiography-based prospective observational study

  Pre Post Mean Difference (95% CI) p value
Hemodynamic parameters
 HR [bpm] 75 (SD 15) 66 (SD 14) −9 (−12 to −5) < 0.0001
 Systolic BP [mmHg] 136 (SD 24) 112 (SD 19) −24 (−32 to − 17) < 0.0001
 Diastolic BP [mmHg] 70 (IQR 60 to 80) 57 (SD 11) −13 (− 18 to −8) < 0.0001 a
 Mean BP [mmHg] 91 (IQR 80 to 104) 75 (SD 12) −17 (− 22 to − 12) < 0.0001 a
Echocardiographic parameters
Right ventricle
RVEDAI (cm2/m2)
n = 49
13 (SD 3) 13 (SD 2) −0.3 (−1 to 0.4) 0.3585
RVEDV (ml)
n = 53
132 (SD 35) 132 (SD 36) −0.0 (−8 to 8) 0.9996
RVESV (ml)
n = 53
76 (SD 25) 78 (SD 27) 2.4 (−3.2 to 8.1) 0.3923
RVEDVI (ml/m2)
n = 53
67 (SD 17) 67 (SD 17) −0.3 (−5.2 to 4.5) 0.9609
RVESVI (ml/m2)
n = 53
35 (IQR 32 to 44) 37 (IQR 30 to 45) 1.1 (−1.8 to 3.9) 0.4482
RVFAC (%)
n = 49
38 (SD 9) 38 (SD 9) −0.3 (−2.4 to 1.8) 0.7538
RVEF (%)
n = 53
43 (SD 9) 42 (SD 8) −1.4 (− 3.5 to 0.6) 0.1607
Stroke Volume (ml)
n = 53
57 (SD 19) 54 (SD 16) −3 (−7.5 to 1.5) 0.1838
TAPSE (mm)
n = 51
18 (SD 4) 16 (SD 4) −1.6 (−2.6 to −0.7) 0.0013
TDI TV s’ (cm/s)
n = 43
13.2 (IQR 11.8 to 15.9) 11.8 (IQR 10.1 to 13.3) −1.9 (−2.6 to − 1.2) < 0.0001
3D-RVLS-fw (%)
n = 52
−22.9 (SD 6) − 21.4 (SD 5.9) 1.5 (0.1 to 2.9) 0.0366
3D-RVLS-sw (%)
n = 52
−12.8 (SD 5.2) − 12.3 (SD 3.9) −0.3 (− 1.2 to 1.9) 0.5492
Tricuspid valve regurgitation (n=)  
 None or trace 26
 Mild 25
 Moderate 2
 Severe 0
Left ventricle
LVEDVI (ml/m2)
n = 38
80 (SD 24) 79 (SD 25) −0.5 (−4.3 to 3.3) 0.7880
3D-LVEF (%)
n = 38
53 (SD 16) 52 (SD 13) −0.9 (−4.1 to 2.3) 0.5704
  1. Pre: baseline values; Post: Post-anesthesia induction values; CI: confidence intervals (lower limit to upper limit); HR: heart rate; BP: blood pressure; RVEDAI: right ventricular end-diastolic area index to body surface area to RVEDVI: right ventricular end-diastolic volume indexed to body surface area to RVFAC: right ventricular fractional area change to 3D-RVEF: right ventricular ejection fraction derived by 3D volumetry to TAPSE: tricuspid plane systolic excursion to TDI TV s’: tissue Doppler derived peak systolic velocity of the lateral tricuspid annulus to 3D-RVLS-fw: right ventricular free wall peak longitudinal strain derived by 3D echocardiography to 3D-RVLS-sw: right ventricular septal wall peak longitudinal strain derived by 3D echocardiography to LVEDVI: left ventricular end-diastolic volume indexed to body surface area by 3D volumetry to LVEF: left ventricular ejection fraction derived by 3D volumetry
  2. aWilcoxon signed-rank test