Table 1.
Baseline characteristics.
| Characteristic | Anterior circulation (n = 120) | Posterior circulation (n = 98) | p |
|---|---|---|---|
| Age (y) | 56.1 ± 9.5 | 60.5 ± 9.1 | 0.0007 |
| Male (n, %) | 84 (70.0) | 77 (78.6) | 0.1520 |
| BMI | 25.7 ± 2.9 | 26.2 ± 2.8 | 0.2196 |
| Hypertension (n, %) | 85 (70.8) | 77 (78.6) | 0.1933 |
| Hypercholesterolemia (n, %) | 64 (53.3) | 57 (58.2) | 0.4750 |
| Diabetes mellitus (n, %) | 49 (41.0) | 38 (38.8) | 0.7580 |
| CAD (n, %) | 15 (12.5) | 26 (26.5) | 0.0084 |
| Smoker (n, %) | 66 (55.0) | 55 (56.7) | 0.8019 |
| INR | 0.97 ± 0.07 | 1.02 ± 0.28 | 0.0519 |
| TEG-AA | 89.51 ± 21.18 | 94.01 ± 14.83 | 0.1530 |
| TEG-ADP | 50.75 ± 24.73 | 55.45 ± 25.18 | 0.2540 |
| Ischemic type | 0.8922 | ||
| TIA (n, %) | 54 (45.0) | 45 (45.9) | |
| Stroke (n, %) | 66 (55.0) | 53 (54.1) | |
| Onset to DSA procedure (d) | 52 (30–94) | 45 (26–96) | 0.6371 |
| Lesion location (n, %) | |||
| ICA | 42 (35.0) | ||
| MCA M1 | 73 (60.8) | ||
| MCA M2 | 5 (4.2) | ||
| VA | 39 (39.8) | ||
| BA | 59 (60.2) | ||
| Stenosis rate | 66.5 ± 20.9 | 69.5 ± 21.0 | 0.2930 |
| Stenosis rank | 0.2110 | ||
| Mild (n, %) | 28 (23.3) | 12 (12.2) | |
| Median (n, %) | 44 (36.7) | 43 (43.9) | |
| Severe (n, %) | 27 (22.5) | 24 (24.5) | |
| Occlusion (n, %) | 21 (17.5) | 19 (19.4) | |
| Stenosis length | 5.66 ± 3.43 | 7.60 ± 6.10 | 0.0080 |
| AcoA | 60 (50.0) | 28 (28.6) | 0.0013 |
| PcoA (unilateral of bilateral) | 35 (29.2) | 37 (37.8) | 0.0137 |
| Complete Willis Circle | 9 (7.5) | 5 (5.1) | 0.4735 |
| Leptomeningeal collateral | 99 (83.2) | 69 (70.4) | 0.0250 |
| ASTIN 0-2 (n, %) | 97 (80.8) | 89 (90.8) | 0.0380 |
| TICI 0-2a (n, %) | 50 (41.7) | 56 (57.1) | 0.0230 |
Data are median (IQR) or n (%). BMI, Body Mass Index; CAD, Coronary Artery Disease; INR, International standard ratio; TEG-AA, Thromboelastogram platelet mapping arachidonic acid inhibition; TEG-ADP, Thromboelastogram platelet mapping adenosine diphosphate inhibition; TIA, Transient Ischemic Attack; DSA, Digital Subtraction Angiography; ICA, internal carotid artery; MCA M1, Middle Cerebral Artery M1 segment; MCA M2, Middle Cerebral Artery M2 segment; VA, Vertebral Artery; BA, Basilar Artery; AcoA, Anterior Communicating Artery; PcoA, Posterior Communicating Artery; TICI, Thrombolysis in Cerebral Ischemia Scale; ASTIN/SIR, American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology Collateral Flow Grading System.