Table 1.
Demographic and preoperative characteristics
| Variable | u-ACP (n = 124) | b-ACP (n = 197) | p value |
|---|---|---|---|
| Age (year, ± s) | 55.38 ± 10.40 | 54.00 ± 9.37 | 0.646 |
| Male (n, %) | 85 (68.5%) | 139 (70.6%) | 0.822 |
| BMI (kg/m2, ± s) | 24.58 ± 1.25 | 25.21 ± 1.44 | 0.148 |
| Hypertension (n, %) | 94 (76.3%) | 157 (80.1%) | 0.615 |
| Diabetes mellitus (n, %) | 16 (12.9%) | 43 (21.8%) | 0.433 |
| COPD (n, %) | 3 (2.4%) | 7 (3.6%) | 0.746 |
| Cerebrovascular disease history (n, %) | 23 (18.5%) | 37 (18.8%) | 0.958 |
| Renal dysfunction (n, %)a | 5 (4.0%) | 12 (6.1%) | 0.423 |
| Hemodynamic instability | 4 (3.2%) | 9 (4.6%) | 0.552 |
| Results of CT scan | |||
| Arch tear | 105 | 152 | 0.361 |
| Carotid dissection | 6 | 8 | |
| Aortic arch aneurysm | 13 | 37 | |
| Preoperative neurological complication (n, %) | 5 (4.0%) | 11 (5.6%) | 0.534 |
| Preoperative intubation (n, %) | 6 (4.8%) | 10 (5.1%) | 0.666 |
| LVEF < 0.4 (n, %) | 4 (3.2%) | 10 (5.1%) | 0.578 |
p < 0.05 is considered as statistically significant
u-ACP unilateral antegrade cerebral perfusion, b-ACP bilateral antegrade cerebral perfusion, COPD chronic obstructive pulmonary disease
aA serum creatinine level > 97 μmol/L is considered to indicate renal dysfunction