Table 1 Demographics and clinical data
PDT + SWI (n = 25) | SWI w/o PDT (n = 131) | P-values | |
|---|---|---|---|
Preoperative variables | |||
Mean age (±) SD | 70 (±6.4) | 66 (±11) | 0.080 |
Mean BMI (±) SD | 26.8 (±3.93) | 28.9 (±4.6) | 0.034 |
Female % (n) | 36.0 (9) | 44.3 (58) | 0.511 |
Preop. LVEF < 34 % (n) | 20.0 (5) | 4.6 (6) | 0.729 |
NYHA IV % (n) | 36.0 (9) | 14.5 (19) | 0.420 |
Hypertension % (n) | 88.0 (22) | 93.9 (123) | 0.385 |
DM % (n) | 32.0 (8) | 42.0 (55) | 0.383 |
COPD % (n) | 36.0 (9) | 24.4 (32) | 0.226 |
PAD % (n) | 48.0 (12) | 14.5 (19) | 0.0005 |
Smoking % (n) | 48.0 (12) | 47.3 (62) | 1.000 |
Recent MI % (n) | 44.0 (11) | 42.7 (56) | 1.000 |
Renal insufficiency % (n) | 68.0 (17) | 43.5 (57) | 0.029 |
Preop. IABP % (n) | 8.0 (2) | 0 | 0.024 |
Preop. Inotropes % (n) | 16.0 (4) | 2.2 (3) | 0.013 |
Preop. Dialysis % (n) | 4.0 (1) | 0.7 (1) | 0.295 |
Mean Euroscore II in % (±) SD | 18.8 (±15.6) | 4.0 (±4.6) | 0.0001 |
Mean STS-score: Risk of Mortality % (±) SD | 6.5 (±4.3) | 2.2 (±2.1) | 0.0001 |
Mean STS-score: Risk of DSWI % (±) SD | 0.6 (±0.26) | 0.5 (±0.4) | 0.231 |
Operative procedures | |||
CABG % (n) | 48.0 (12) | 71.8 (94) | 0.033 |
Comb. CABG + Valve % (n) | 12.0 (3) | 16.0 (21) | 0.768 |
Valve surgery % (n) | 8.0 (2) | 1.5 (2) | 0.120 |
Thoracic aorta proc. % (n) | 16.0 (4) | 4.6 (6) | 0.055 |
VAD-Implantation % (n) | 8.0 (2) | 0.8 (1) | 0.067 |
Re-do % (n) | 8.0 (2) | 5.3 (7) | 0.637 |
Perioperative variables | |||
Mean Cross-clamp time (min) | 58.6 (±44.0) | 59.0 (±36.1) | 0.961 |
Mean CPB time (min) | 133.8 (±59.5) | 103.8 (±54.3) | 0.013 |
Postoperative Variables | |||
Re-thoracotomy (%) | 20 (5) | 9.2 (12) | 0.153 |
Stroke (%) | 12 (3) | 0 | 0.003 |
Low cardiac output (%) | 20 (5) | 0 | 0.0001 |
Pneumonia % (n) | 68 (17) | 13.7 (18) | 0.0001 |
Respir. Insufficiency % (n) | 84 (21) | 19.0 (25) | 0.0001 |
Delirium % (n) | 56 (14) | 22.9 (30) | 0.001 |
Post-op MI % (n) | 0 | 1.5 (2) | 1.000 |
Sepsis | 60 (15) | 13.7 (18) | 0.0001 |
Mean vent. time in (h) (±) SD | 547 (±288) | 21 (±37) | 0.0001 |
Mean number of packed RB cells (±) SD | 11 (±11) | 3 (±2) | 0.0001 |
Mean days of ICU-stay (±) SD | 32 (±11) | 7 (±8) | 0.0001 |
Mean LOS hospital (±) SD | 40 (±14) | 36 (±18) | 0.294 |