Table 1.
Baseline characteristics and operative data for patients undergoing PED or TET approaches.
| Unmatched cohort | p-value | Matched cohort | p-value | |||
|---|---|---|---|---|---|---|
| PED (n = 37) | TET (n = 172) | PED (n = 37) | TET (n = 37) | |||
| Age in years (IQR)+ | 53 (39–59) | 57 (49–63) | 0.004* | 53 (39–59) | 56 (50–61) | 0.108 |
| Male sex+ | 21 (56.7%) | 69 (40.1%) | 0.064 | 21 (56.7%) | 18 (48.6%) | 0.485 |
| Location of aneurysm + | ||||||
| ACA | 5 (13.5%) | 40 (23.3%) | 0.191 | 5 (13.5%) | 6 (16.2%) | 0.744 |
| MCA | 27 (72.9%) | 106 (61.6%) | 0.193 | 27 (72.9%) | 24 (64.9%) | 0.451 |
| PCA | 5 (13.5%) | 26 (15.1%) | 0.804 | 5 (13.5%) | 7 (18.9%) | 0.528 |
| Maximal AN diameter+ (mean ± SD) | 12.3 (± 5.5) | 7.6 (± 4.8) | <0.001* | 12.3 (± 5.5) | 9.2 (± 6.3) | 0.005* |
| <5 mm | 3 (8.1%) | 59 (34.3%) | 0.002* | 3 (8.1%) | 9 (24.3%) | 0.058 |
| 5–14.9 mm | 25 (67.5%) | 101 (58.7%) | 0.318 | 25 (67.5%) | 22 (59.5%) | 0.469 |
| 15–24.9 mm | 8 (21.6%) | 11 (6.4%) | 0.009* | 8 (21.6%) | 5 (13.5%) | 0.359 |
| ≥25 mm | 1 (2.7%) | 1 (0.6%) | 0.323 | 1 (2.7%) | 1 (2.7%) | 1 |
| Previous treatment + | 6 (16.2%) | 3 (1.7%) | <0.001* | 6 (16.2%) | 3 (8.1%) | 0.477 |
| Endovascular | 4 (66.7%) | 1 (33.3%) | 0.524 | 4 (66.7%) | 1 (33.3%) | 0.524 |
| Microsurgical clipping | 2 (33.3%) | 2 (66.7%) | 0.524 | 2 (33.3%) | 2 (66.7%) | 0.524 |
| Morphology + | ||||||
| Non-saccular | 29 (78.4%) | 119 (69.2%) | 0.265 | 29 (78.4%) | 27 (73%) | 0.588 |
| Saccular | 8 (21.6%) | 53 (30.8%) | 0.265 | 8 (21.6%) | 10 (27%) | 0.588 |
| Pretreatment-mRS + | ||||||
| Good (mRS = 0–2) | 37 (100.0%) | 170 (98.8%) | 1 | 37 (100.0%) | 37 (100.0%) | 1 |
| Poor (mRS = 3–5) | 0 (0%) | 2 (1.2%) | 1 | 0 (0%) | 0 (0%) | 1 |
| Average parent vessel diameter (mean ±SD) | 2.3 (± 0.4) | 2.6 (± 0.6) | 0.025* | 2.3 (± 0.4) | 2.3 (± 0.4) | 0.936 |
| Adjunctive coil placement + | 9 (24.3%) | 97 (56.4%) | <0.001* | 9 (24.3%) | 9 (24.3%) | 1 |
| Multiple stent placement | 7 (18.9%) | 9 (5.2%) | 0.012* | 7 (18.9%) | 1 (2.7%) | 0.061 |
Data are reported for the overall series and the propensity score-matched groups. PED, pipeline embolization device; TET, traditional endovascular therapeutic; IQR, interquartile range; ACA, anterior cerebral artery; MCA, middle cerebral artery; PCA, posterior cerebral artery; mRS, modified Rankin Scale; SD, standard deviation; *, significant result; +, baseline factors used for propensity score matching.