Table 2

Echocardiographic assessment

ParametersAll
n=65
Survivors
n=49
Non-survivors
n=16
P values
  LV-EF, %68 (65; 73)67 (65; 72)72 (68;77)0.018
Right heart geometric parameters
  RV-EDD, cm41 (36; 49)40 (35; 47)48 (40; 55)0.033
  RA-ESA, cm²21 (15; 29)19 (14; 27)30 (16; 36)0.023
  RA-ESA(BSA), cm²/m²11 (8; 16)11 (8; 14)16 (10; 18)0.035
  IVC diameter, mm20 (17; 23)19 (16; 23)21 (18; 24)0.432
Right heart haemodynamic assessment
  Impaired IVC collapsibility, n (%)42 (64)33 (67)9 (56)0.998
  Estimated RAP, mm Hg10 (5; 15)10 (5; 15)12.5 (5; 20)0.171
  RV-sPG, mm Hg54 (38; 80)57 (38; 81)50 (38; 76)0.563
  RV-mPG, mm Hg35 (25; 49)35 (25; 51)29 (24; 44)0.433
  VTI, cm127 (107; 165)129 (110; 167)125 (86; 154)0.226
  Estimated sPAP, mm Hg65 (45; 91)66 (46; 91)65 (43; 91)0.648
  TR flow time, ms461 (431; 498)466 (444; 498)437 (374; 498)0.212
  TR time-to-peak-flow, ms247 (205; 277)251 (214; 282)222 (193; 257)0.077
  dp/dt 1–2, mm Hg/ms800 (511; 1145)857 (522; 1145)709 (500; 1150)0.441
  dp/dt 0.5–2, mm Hg/ms625 (429; 789)625 (441; 811)476 (278; 787)0.647
  dp/dt 1–3, mm Hg/ms438 (226; 771)438 (204; 771)536 (379; 762)0.726
  TR mean acceleration, cm/s²15.5 (13.2; 18.3)15.3 (13.0; 17.9)16.3 (15.0; 19.5)0.091
Surrogate parameters of RV function
  RV-FAC, %28 (22; 38)29 (23; 38)24 (16; 34)0.209
  TAPSE, cm1.7 (1.4; 1.9)1.7 (1.5; 2.0)1.4 (1.1; 1.7)0.010
  LV-EI1.3 (1.1; 1.7)1.3 (1.1; 1.5)1.7 (1.4; 2.2)0.009
  Tei-Index0.68 (0.52; 0.99)0.66 (0.51; 0.97)0.74 (0.52; 1.11)0.946
  TASV, cm/s10 (8; 12)10 (8; 12)10 (8; 12)0.481
  RV-ASI, %41 (35; 47)41 (36; 48)36 (29; 41)0.028
  RV-2Dstrain, −%16 (10; 20)17 (11; 21)10 (8; 16)0.002
  RV-MMI, mm Hg*%0.38 (0.22; 0.59)0.49 (0.31; 0.62)0.19 (0.16; 0.29)0.001
  • Variability of values with non-parametric distribution is presented as median with 25% and 75% percentiles.

  • ASI, automated systolic index; BSA, body surface area; dp/dt, physical formula in SI, repressenting pressure augmentation per time; EDD, end-diastolic diameter; FAC, fractional area change; IVC, vena cava inferior; LV-EF, left ventricular ejection fraction; LV-EI, left ventricular eccentricity index; mPG, mean pressure gradient; RA-ESA, right atrial end-systolic area; RAP, right atrial pressure; RV, right ventricular; RV-2Dstrain, two-dimensional strain; RV-MMI, right ventricular myo-mechanical index; sPAP, systolic pulmonary artery pressure; sPG, systolic pressure gradient; TAPSE, tricuspid annular plane systolic excursion; TASV, tricuspid annular systolic velocity; TR, tricuspid regurgitation; VTI, velocity time integral.