Table 2.
TBAAD patient characteristics and perioperative variables.
| TBAAD Variables |
All (N = 283) |
Training set (N = 198) |
Test set (N = 85) |
P |
|---|---|---|---|---|
| Age (years) | 51.98 ± 11.22 | 51.40 ± 11.33 | 53.33 ± 10.90 | 0.18 |
| Male, n (%) | 229(80.9) | 164(82.8) | 20(23.5) | 0.28 |
| Preoperative factors | ||||
| Hypertension, n (%) | 248(87.6) | 175(88.4) | 73(85.9) | 0.70 |
| Diabetes, n (%) | 17(6.0) | 12(6.1) | 5(5.9) | 1.00 |
| CCD, n (%) | 46(16.3) | 30(15.2) | 16(18.8) | 0.55 |
| CKD, n (%) | 18(6.3) | 12(6.1) | 6(7.1) | 0.96 |
| History of smoking, n (%) | 136(48.1) | 99(50.0) | 37(43.5) | 0.38 |
| Renal artery involvement in CTA | 0.39 | |||
| No, n (%) | 144(50.9) | 104(52.5) | 40(47.1) | |
| Unilateral, n (%) | 117(41.3) | 77(38.9) | 40(47.1) | |
| Bilateral, n (%) | 22(7.8) | 17(8.6) | 5(5.9) | |
| SBP at admission (mmHg) | 149.01 ± 25.55 | 149.41 ± 25.20 | 148.09 ± 26.47 | 0.69 |
| DBP at admission (mmHg) | 85.43 ± 15.32 | 85.19 ± 14.95 | 86.01 ± 16.22 | 0.68 |
| EF (%) | 60.65 ± 4.51 | 60.54 ± 4.71 | 60.90 ± 4.01 | 0.54 |
| WBC (109/L) | 11.33 ± 3.89 | 11.20 ± 3.79 | 11.65 ± 4.13 | 0.37 |
| HGB (g/L) | 140.38 ± 20.31 | 140.80 ± 21.24 | 139.40 ± 18.06 | 0.60 |
| PLT (109/L) | 209.09 ± 74.59 | 209.68 ± 76.10 | 207.73 ± 71.38 | 0.84 |
| APTT (s) | 31.25 ± 4.74 | 31.33 ± 4.48 | 31.08 ± 5.33 | 0.69 |
| D dimer (ng/mL) | 1,020.0(557.0, 2,572.5) | 1,057.5(612.5, 2,572.5) | 908.0(551.0, 2,528.0) | 0.20 |
| Serum kalium (mmol/L) | 3.66 ± 0.43 | 3.67 ± 0.41 | 3.63 ± 0.46 | 0.48 |
| Blood calcium (mmol/L) | 2.22 ± 0.13 | 2.23 ± 0.12 | 2.21 ± 0.13 | 0.48 |
| ALT (u/L) | 25.4(19.435,34.645) | 25.8(19.33, 35.83) | 24.7(19.85, 32.10) | 0.56 |
| BUN (mmol/L) | 5.9(4.77, 7.06) | 5.92(4.89, 7.09) | 5.55(4.55, 6.70) | 0.07 |
| UA (mmol/L) | 344.97 ± 117.12 | 352.45 ± 115.99 | 327.54 ± 118.57 | 0.10 |
| Baseline SCR (umol/L) | 63.4(52.55, 75.25) | 64.99(54.17, 77.55) | 60.42(50.0, 71.70) | 0.42 |
| Proealcitonin (ng/mL) | 0.06(0.04, 0.11) | 0.06(0.04, 0.11) | 0.05(0.03, 0.12) | 0.13 |
| IL-6 (pg/mL) | 32.37(15.905, 63.17) | 30.09(15.91, 61.75) | 36.70(16.53, 70.63) | 0.39 |
| CTn I (ug/L) | 0.012(0.012, 0.015) | 0.012(0.012, 0.015) | 0.012(0.012, 0.017) | 0.55 |
| Pericardial effusion, n (%) | 15(5.3) | 10(5.1) | 5(5.9) | 1.00 |
| Pleural effusion, n (%) | 65(23.0) | 49(24.7) | 16(18.8) | 0.35 |
| N-terminal pro BNP (ng/L) | 124.0(54.25, 392.69) | 115.0(51.16, 377.0) | 152.0(64.1,393.0) | 0.29 |
| LAC (mmol/L) | 1.5(1.1, 2.1) | 1.6(1.1, 2.15) | 1.4(1.1, 2.06) | 0.46 |
| PaO2/FiO2 (mmHg) | 333.61 ± 105.59 | 333.02 ± 108.60 | 333.99 ± 98.84 | 0.88 |
| Intraoperative factors | ||||
| Emergency operation, n (%) | 59(20.8) | 37(18.7) | 22(25.9) | 0.23 |
| Total operation duration (mins) | 90.0(75.0, 120.0) | 90.0(70.0, 120.0) | 105.0(75.0, 125.0) | 0.25 |
| Dose of contrast media (mL) | 40.0(20.0, 60.0) | 40.0(20.0, 60.0) | 40.0(20.0, 60.0) | 0.30 |
| Type of operation | ||||
| Complex EVAR, n (%) | 8(2.8) | 5(2.5) | 3(3.5) | 0.94 |
| Combined renal arteriography, n (%) |
112(39.6) | 81(40.9) | 31(36.5) | 0.57 |
| Postoperative factors | ||||
| MVT (hours) | 0.0(0.0, 5.0) | 0.0(0.0, 4.5) | 0.0(0.0, 5.0) | 0.90 |
| LOS in ICU (days) | 5.0(9.0, 15.0) | 5.5(1.0, 8.5) | 5.0(1.0, 7.0) | 0.23 |
| Perioperative drugs | ||||
| RASI, n (%) | 227(80.2) | 163(82.3) | 64(75.3) | 0.23 |
| Loop diuretics, n (%) | 112(39.6) | 78(39.4) | 34(40.0) | 1.00 |
| Vasopressors, n (%) | 70(24.7) | 50(25.3) | 20(23.5) | 0.87 |
| Statins, n (%) | 51(18.0) | 37(18.7) | 14(16.5) | 0.78 |
| Antibiotics, n (%) | 273(96.5) | 193(97.5) | 80(94.1) | 0.29 |
EVAR, endovascular aneurysm repair; Complex EVAR is defined as requiring simultaneous repair of branches; Combined renal arteriography is defined as the addition of renal arteriography on the basis of main artery angiography.