Table 3.
Subgroup analysis according to the first-pass device
| Characteristics | Location | First-pass device | p value | ||||
|---|---|---|---|---|---|---|---|
| 1. Stent retriever | 2. Aspiration catheter | 3. Combined approach | 1 vs. 2 | 1 vs. 3 | 2 vs. 3 | ||
| Number of patients | AC | 90 | 110 | 93 | |||
| PC | 11 | 13 | 10 | ||||
| Puncture-to-reperfusion time, median (IQR), min | AC | 47 (28.3–64.8) | 41.5 (28–69) | 53.5 (36.5–77) | 0.993 | 0.065 | 0.045* |
| PC | 54 (43–65) | 38.5 (26–79.3) | 48 (42–74) | 0.566 | 0.824 | 0.382 | |
| TICI 2B-3 reperfusion (%) | AC | 75 (83.3) | 91 (82.7) | 77 (82.8) | 0.910 | 0.923 | 0.990 |
| PC | 10 (90.9) | 9 (69.2) | 8 (80.0) | 0.327 | 0.586 | 0.660 | |
| TICI 3 reperfusion (%) | AC | 39 (43.4) | 57 (51.8) | 36 (38.7) | 0.232 | 0.525 | 0.062 |
| PC | 7 (63.6) | 5 (38.5) | 7 (70.0) | 0.219 | 1.000 | 0.214 | |
| First-pass TICI 2B-3 reperfusion (%) | AC | 41 (45.6) | 48 (43.6) | 44 (47.3) | 0.786 | 0.812 | 0.600 |
| PC | 9 (81.8) | 5 (38.5) | 5 (50.0) | 0.047* | 0.183 | 0.685 | |
| Symptomatic ischemic complications (%) | AC | 0 (0) | 1 (9.1) | 0 (0) | 1.000 | NA | 1.000 |
| PC | 0 (0) | 0 (0) | 0 (0) | NA | NA | NA | |
| Symptomatic hemorrhagic complications (%) | AC | 3 (3.3) | 3 (2.7) | 10 (10.8) | 0.803 | 0.051 | 0.020* |
| PC | 0 (0) | 1 (7.7) | 0 (0) | 1.000 | NA | 1.000 | |
| mRS ≤ 2 at discharge (%) | AC | 30 (33.3) | 43 (39.1) | 26 (28.0) | 0.400 | 0.430 | 0.095 |
| PC | 4 (36.4) | 4 (30.8) | 2 (20.0) | 1.000 | 0.635 | 0.660 | |
| Mortality (%) | AC | 4 (4.4) | 8 (7.3) | 7 (7.5) | 0.402 | 0.380 | 0.945 |
| PC | 1 (9.1) | 3 (23.1) | 2 (20.0) | 0.596 | 0.586 | 1.000 | |
*p < 0.05. IQR interquartile range, AC anterior circulation, PC posterior circulation, TICI Thrombolysis in Cerebral Ischemia, mRS, modified Rankin Scale