Skip to main content

Table 1 Demographics and clinical data

From: Does percutaneous dilatational tracheostomy increase the incidence of sternal wound infection - a single center retrospective of 4100 cases

  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
  1. Description of pre-, peri-, post-operative clinical characteristics, surgical techniques and intensive care unit stays
  2. Bold writing indicates significant values
  3. BMI body mass index (kg/m2), LVEF left ventricle ejection fraction, NYHA New York Heart Association, COPD chronic obstructive pulmonary disease, DM diabetes mellitus, PAD peripheral arterial disease, Recent MI recent myocardial infarction, Preop pre-operative, IABP intra-aortic balloon pump, CABG coronary artery bypass graft, Other other open heart surgery procedures, CPB time total cardiopulmonary bypass time (in min), Valve heart valve surgery, VAD ventricular assist device implantation, Re-do second heart surgery, SD standard deviation, LOS length of stay, ICU intensive care unit; packed RB cells packed red blood cell