Echocardiographic assessment
Parameters | All 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, cm | 41 (36; 49) | 40 (35; 47) | 48 (40; 55) | 0.033 |
RA-ESA, cm² | 21 (15; 29) | 19 (14; 27) | 30 (16; 36) | 0.023 |
RA-ESA(BSA), cm²/m² | 11 (8; 16) | 11 (8; 14) | 16 (10; 18) | 0.035 |
IVC diameter, mm | 20 (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 Hg | 10 (5; 15) | 10 (5; 15) | 12.5 (5; 20) | 0.171 |
RV-sPG, mm Hg | 54 (38; 80) | 57 (38; 81) | 50 (38; 76) | 0.563 |
RV-mPG, mm Hg | 35 (25; 49) | 35 (25; 51) | 29 (24; 44) | 0.433 |
VTI, cm | 127 (107; 165) | 129 (110; 167) | 125 (86; 154) | 0.226 |
Estimated sPAP, mm Hg | 65 (45; 91) | 66 (46; 91) | 65 (43; 91) | 0.648 |
TR flow time, ms | 461 (431; 498) | 466 (444; 498) | 437 (374; 498) | 0.212 |
TR time-to-peak-flow, ms | 247 (205; 277) | 251 (214; 282) | 222 (193; 257) | 0.077 |
dp/dt 1–2, mm Hg/ms | 800 (511; 1145) | 857 (522; 1145) | 709 (500; 1150) | 0.441 |
dp/dt 0.5–2, mm Hg/ms | 625 (429; 789) | 625 (441; 811) | 476 (278; 787) | 0.647 |
dp/dt 1–3, mm Hg/ms | 438 (226; 771) | 438 (204; 771) | 536 (379; 762) | 0.726 |
TR mean acceleration, cm/s² | 15.5 (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, cm | 1.7 (1.4; 1.9) | 1.7 (1.5; 2.0) | 1.4 (1.1; 1.7) | 0.010 |
LV-EI | 1.3 (1.1; 1.7) | 1.3 (1.1; 1.5) | 1.7 (1.4; 2.2) | 0.009 |
Tei-Index | 0.68 (0.52; 0.99) | 0.66 (0.51; 0.97) | 0.74 (0.52; 1.11) | 0.946 |
TASV, cm/s | 10 (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.