Table 1.
Clinicopathologic and biochemical features of patients with type B-AD undergoing TEVAR
| Variables | IVUS-assisted TEVAR (n = 13) | TEVAR (n = 34) | P |
|---|---|---|---|
| Age (years, mean ± SD) | 48.9 ± 12.2 | 60.6 ± 11.9 | 0.005 |
| Male, n (%) | 11 (84.62) | 24 (70.59) | 0.464 |
| Clinical characteristics, n (%) | |||
| Hypertension | 10 (76.92) | 29 (85.29) | 0.666 |
| PAD | 4 (30.77) | 10 (29.41) | 0.999 |
| Hyperlipidemia | 5 (38.46) | 11 (32.35) | 0.693 |
| Diabetes mellitus | 4 (30.77) | 7 (20.59) | 0.467 |
| Current smoking | 8 (61.54) | 13 (38.24) | 0.666 |
| Marfan syndrome | 1 (7.69) | 1 (2.94) | 0.433 |
| Initial CT findings, n (%) | |||
| Arch involvement | |||
| False lumen located at IAC | 2 (15.38) | 3 (8.82) | 0.607 |
| Pleural fluid | 4 (30.77) | 10 (29.41) | 0.999 |
| Visceral malperfusion | 10 (76.92) | 25 (73.53) | 0.565 |
| SMA | 2 (15.38) | 3 (8.82) | |
| RA | 7 (53.85) | 20 (58.82) | |
| Extremity artery | 1 (7.69) | 2 (5.88) | |
| Large entry tear | 4 (30.77) | 7 (20.59) | 0.706 |
| One-sheet space | 6 (46.15) | 8 (23.53) | 0.163 |
| Multi-barreled | 2 (15.38) | 5 (14.71) | 0.999 |
| Timing of onset, n (%) | 0.905 | ||
| Hyperacute | 2 (15.38) | 5 (14.71) | |
| Acute | 1 (7.69) | 4 (11.76) | |
| Subacute | 4 (30.77) | 12 (35.29) | |
| Chronic | 6 (46.15) | 13 (38.24) | |
| Preoperative laboratory data (mean ± SD) | |||
| BUN (mmol/L) | 6.63 ± 2.71 | 7.41 ± 3.15 | 0.355 |
| Creatinine (μmol/L) | 105.77 ± 25.89 | 81.22 ± 24.77 | 0.001 |
| Hemoglobin (g/L) | 129.8 ± 18.1 | 126.8 ± 22.6 | 0.680 |
| INR | 1.040 ± 0.086 | 1.06 ± 0.13 | 0.279 |
AD: Aortic dissection; TEVAR: Thoracic endovascular aortic repair; PAD: Peripheral artery disease; CT: Computed tomography; IAC: The inner aortic curvature; SMA: Superior mesenteric artery; RA: Renal artery; BUN: Blood urea nitrogen; INR: International normalized ratio; Type B-AD: Type B aortic dissection; IVUS: Intravascular ultrasound; SD: Standard deviation.