Table 2 Intraoperative characteristics
Variable | Patients with | Patients with | P- value |
|---|---|---|---|
VAP (n =137) | non-VAP (n =120) | ||
Non-scheduled surgery, n (%) | 13 (9.5) | 6 (5) | 0.17 |
Redo surgery, n (%)a | 22 (16.1) | 12 (10) | 0.15 |
Coronary artery bypass grafting, n (%) | 61 (44.5) | 64 (53.3) | 0.16 |
Valvular surgery, n (%) | 90 (65.7) | 65 (54.2) | 0.06 |
Systolic PAP, mmHg, mean ± SD | 37 ± 14 | 35 ± 12 | 0.36 |
Congestive heart failure, n (%) | 19 (13.9) | 9 (7.5) | 0.1 |
Acute renal insufficiency, n (%) | 4 (2.9) | 1 (0.8) | 0.23 |
Venoarterial ECMO at the end of surgery, n (%) | 5 (3.6) | 2 (1.7) | 0.33 |
Antibiotic prophylaxis with cefamandole, n (%) | 115 (83.9) | 104 (86.7) | 0.54 |
Difficult endotracheal intubation, n (%) | 6 (4.4) | 8 (6.7) | 0.42 |
Transesophageal echocardiography, n (%) | 72 (52.6) | 38 (32.7) | 0.0007 |
Cardiopulmonary bypass time, minutes, mean ± SD | 105 ± 63 | 76 ± 41 | <0.0001 |
Aortic clamp time, minutes, mean ± S | 69 ± 35 | 57 ± 29 | 0.002 |
Operating time, minutes, mean ± S | 237 ± 84 | 200 ± 56 | <0.0001 |
Inotropic support at the end of surgery, n (%) | 88 (64.2) | 50 (41.7) | 0.0003 |
Intraoperative number of units of PRBC, n (%) | 1.8 ± 2.1 | 1.2 ± 1.6 | 0.03 |