Table 1.
Preoperative characteristics according to patient group.
| Parameters | Overall (n = 276) |
Survivor (n = 243) |
Non-survivor (n = 33) |
P-value |
|---|---|---|---|---|
| Clinical demographics | ||||
| Sex (female, n, %) | 57, 20.7 | 52, 21.4 | 5, 15.2 | 0.405 |
| Age (years) | 52.9 ± 12.0 | 52.5 ± 12.1 | 55.9 ± 11.7 | 0.129 |
| Body mass index (kg/m2) | 26.3 ± 4.7 | 26.5 ± 4.8 | 25.3 ± 3.7 | 0.188 |
| Hypertension (n, %) | 199, 72.1 | 176, 72.4 | 23, 69.7 | 0.743 |
| Diabetes mellitus (n, %) | 10, 3.6 | 8, 3.3 | 2, 6.1 | 0.425 |
| Creatinine (mg/dL) | 1.4 ± 1.6 | 1.4 ± 1.7 | 1.4 ± 0.8 | 0.850 |
| eGFR (mL/min/1.73 m2) | 74.2 ± 27.3 | 75.1 ± 27.0 | 67.9 ± 29.0 | 0.157 |
| ESRD (n, %) | 6, 2.2 | 5, 2.1 | 1, 3.0 | 0.719 |
| Preoperative condition | ||||
| SBP (mmHg) | 101.0 ± 10.0 | 101.4 ± 10.1 | 97.9 ± 8.1 | 0.062 |
| Repeat surgery (n, %) | 13, 4.7 | 7, 2.9 | 6, 18.2 | < 0.001 |
| Time from ED to OR (hours) | 5.6 ± 4.4 | 5.6 ± 4.6 | 5.7 ± 2.0 | 0.869 |
| Clinical presentation | ||||
| Chest/back pain (n, %) | 243, 88.0 | 214, 88.1 | 29, 87.9 | 0.975 |
| AR > moderate (n, %) | 47, 17.0 | 41, 16.5 | 6, 21.2 | 0.496 |
| DeBakey type II (n, %) | 13, 4.7 | 13, 5.3 | 0 | 0.174 |
| Intramural haematoma (n, %) | 46, 16.7 | 41, 16.9 | 5, 15.2 | 0.803 |
AR aortic regurgitation, eGFR estimated glomerular filtration rate, ED emergency department, ESRD end-stage renal disease, OR operating room, SBP systolic blood pressure.