Table 1 Baseline clinical parameters of the study population
|  | Proximal group (n = 99) | Distal group (n = 99) | p value |
|---|---|---|---|
Gender (male), n (%) | 72 (72.7) | 60 (60.6) | 0.10 |
Age (years) | 62 (53, 69) | 60 (47, 68) | 0.29 |
Body mass index (kg/m2) | 24 ± 4.8 | 23.4 ± 4.0 | 0.34 |
Type of surgery, n (%) | |||
 CABG only | 17 (17.2) | 12 (12.1) | 0.42 |
 Valve only | 26 (26.3) | 37 (37.4) | 0.13 |
 CABG and valve | 10 (10.1) | 8 (8.1) | 0.81 |
 Aortic surgery | 31 (31.3) | 28 (28.3) | 0.77 |
 Other cardiac surgery | 15 (15.2) | 14 (14.1) | 1.00 |
EuroScore | 6 (4, 7) | 6 (3, 8) | 0.66 |
Single antiplatelet drug administration, n (%) | 10 (10.1) | 17 (17.2) | 0.21 |
Dural antiplatelet drugs administration, n (%) | 17 (17.2) | 13 (13.1) | 0.55 |
Anticoagulants administration only, n (%) | 62 (62.6) | 61 (61.6) | 1.00 |
Antiplatelet drug and anticoagulants administration, n (%) | 10 (10.1) | 8 (8.1) | 0.81 |
Reasons for catheterization, n (%) | |||
 Tracheostomy | 57 (57.6) | 59 (59.6) | 0.89 |
 Hemodynamic monitoring | 26 (26.3) | 18 (18.2) | 0.23 |
 Catheter dysfunction | 11 (11.1) | 16 (16.2) | 0.41 |
 Suspicion of bloodstream infection | 5 (5.1) | 6 (6.1) | 1.00 |
 Patients on ECMO, n (%) | 3 (3.0) | 5 (5.1) | 0.72 |
 Patients on IABP, n (%) | 3 (3.0) | 5 (5.1) | 0.72 |
 Patients on RRT, n (%) | 38 (38.4) | 33 (33.3) | 0.55 |
 Duration of invasive mechanical ventilation, days | 11 (6, 18) | 11 (6, 19) | 0.73 |
 Median length of ICU stay, days | 19 (12, 31) | 18 (10, 26) | 0.29 |
 Median length of hospital stay, days | 33 (23, 48) | 29 (20, 43) | 0.10 |
 ICU mortality, n (%) | 15 (15.2) | 20 (20.2) | 0.46 |
 Hospital mortality, n (%) | 16 (16.2) | 22 (22.2) | 0.37 |