Table 1:

Baseline, clinical, and technical characteristics

CharacteristicsOverallPoor Outcomes at 90-Day mRS (3–6)Favorable Outcomes at 90-Day mRS (0–2)P Value
No.191118 (61.78%)73 (38.21%)
Age (mean)68.3 [SD, 13.97]69.94 [SD, 12.83]65.63 [SD, 15.35].037
Women61 (31.9%)40/118 (33.9%)21/73 (28.7%).460
Baseline NIHSS (IQR)12 (7–20)15 (9–26)9 (5–15)<.001
CT161 (84.2%)96/118 (81.6%)65/73 (89.0%).156
CTA130 (68.0%)77/118 (65.2%)53/73 (72.6%).290
CTP18 (9.4%)10/118 (8.4%)8/73 (10.9%).568
MR imaging80 (41.9%)53/118 (44.9%)27/73 (36.9%).280
Pc-ASPECTS (CT)8.16 [SD, 2.76]8.08 [SD, 2.60]8.27 [SD, 3.00].168
Pc-ASPECTS (MR imaging)6.63 [SD, 1.64]6.33 [SD, 1.62]7.22 [SD, 1.55].006
Occlusion site.611
    BA180 (94.2%)112/118 (94.9%)68/73 (93.1%)
    VA11 (5.3%)6/118 (5.1%)5/73 (6.89%)
Presumed etiology.001
    Atherosclerotic67 (35.1%)52/118 (44.1%)15/73 (20.8%)
    Thromboembolic124 (64.9%)66/118 (55.9%)58/73 (79.4%)
Thrombolysis57 (30%)28/118 (23.7%)29/73 (40.3%).019
Wake-up stroke13 (6.8%)8/118 (6.8%)5/73 (6.8%).985
Contact aspiration110 (57.6%)58/118 (49.1%)52/73 (71.2%).003
Stent retriever23 (12.0%)15/118 (12.7%)8/73 (10.9%).718
Combined43 (22.5%)33/118 (27.9%)10/73 (13.7%).022
Use of alternative thrombectomy techniques11 (5.7%)8/118 (6.8%)3/73 (4.10%).441
No endovascular access4 (2.1%)4/118 (3.4%)0
mTICI 2b/3165 (86.4%)95/118 (80.5%)70/73 (95.9%).003
mTICI 3129 (67.5%)64/118 (54.2%)65/73 (89.0%)<.001
First-pass effect mTICI 2b/397 (50.8%)48/118 (40.7%)49/73 (67.1%)<.001
First-pass effect mTICI 382 (42.9%)36 (30.5%)46 (63.0%)<.001
Large-bore catheters74 (38.7%)39/118 (33.0%)35/73 (47.9%).040
Symptom-to-groin (IQR)290 (201–420)295 (201–405)278.9 (201–455).941
Reperfusion time (IQR)50.5 (27–92.5)60 (30–105)40.5 (25–77).021
Onset-to-reperfusion (IQR)392.5 (285–570)392.5 (300–560)388.5 (275–655).747
  • Note:—VA indicates vertebral artery; BA, basilar artery.