Table 4.
Postoperative factors
| Group | P | ||
|---|---|---|---|
| Controls (n=99), n (%) | Cases (n=21), n (%) | ||
| Reoperation | 3 (3.0) | 0 | 0.969** |
| Postoperative atrial fibrillation | 24 (24.2) | 3 (14.3) | 0.481** |
| Postoperative blood transfusion | 51 (51.5) | 16 (76.2) | 0.039 |
| FFP/platelet transfusion | 37 (37.4) | 10 (47.6) | 0.382 |
| Postoperative cardiogenic shock | 4 (4.0) | 2 (9.5) | 0.620** |
| IABP use | 2 (2.0) | 3 (14.3) | 0.051** |
| Postoperative infection | 2 (2.0) | 1 (4.8) | 1.000** |
| Hematocrit <30 | 44 (44.4) | 15 (71.4) | 0.025 |
| Creatinine >2 mg/dL | 5 (5.1) | 6 (28.6) | 0.003** |
| Bilirubin >2 mg/dL | 6 (6.1) | 2 (9.5) | 0.923** |
| Atropine use | 1 (1.0) | 1 (4.8) | 0.778** |
| Postoperative pain | 17 (17.2) | 9 (75) | 0.0212** |
| Sodium >140 mEq | 30 (30.3) | 10 (47.6) | 0.126 |
| PaO2 <70 mmHg | 7 (7.1) | 0 | 0.457** |
| NIV used | 14 (14.1) | 9 (42.9) | 0.006** |
| Prolonged hypotension | 33 (33.3) | 8 (38.1) | 0.676 |
| Sleep deprivation | 10 (10.1) | 3 (14.3) | 0.862** |
| Postoperative drain (ml) | |||
| ≤500 | 80 (80.8) | 16 (76.2) | 0.857** |
| 501-1000 | 14 (14.1) | 4 (19.0) | 0.813** |
| >1000 | 5 (5.1) | 1 (4.8) | 0.619** |
| Mechanical ventilation time | |||
| <12 h | 19 (19.2) | 3 (14.3) | 0.828** |
| 12-24 h | 68 (68.7) | 12 (57.1) | 0.310 |
| 25-48 h | 7 (7.1) | 2 (9.5) | 0.945** |
| 49-72 h | 2 (2.0) | 1 (4.8) | 0.969** |
| >3 days | 3 (3.0) | 3 (14.3) | 0.110** |
| ICU stay (days) | |||
| 1-5 | 71 (71.7) | 8 (38.1) | 0.003 |
| 6-10 | 26 (26.3) | 8 (38.1) | 0.275 |
| >10 | 2 (2.0) | 5 (23.8) | 0.0008** |
**Yate’s corrected Chi-square test. NIV: Noninvasive ventilation, ICU: Intensive Care Unit, IABP: Intra-aortic balloon pump, FFP: Fresh frozen plasma