Table 2.
Outcome data and imaging variables
| EVT [N = 41] | Non-EVT [N = 10] | Registry overall [N = 3180] | |
|---|---|---|---|
| Functional independence (mRS 0–2) at 90 days, n(%; 95%CI) [known in] | 21(54; 39–68) [N = 39] | 1(10; 2–40) | 1200(40; 39–42) [N = 2968] |
| Ordinal mRS at 90 days, median (IQR) [known in] | 2(1–6) [N = 39] | 5(4–6) | 3(2–6) [N = 2968] |
| Successful reperfusion after EVT, n(%; 95%CI) [known in] | 23(56; 41–70) | NA | 1913(62; 60–63) [N = 3096] |
| Mortality at 90 days, n(%; 95%CI) [known in] | 10(26; 15–41) [N = 39] | 3(30; 11–60) | 863(29; 27–31) [N = 2968] |
| Delta-NIHSS at 24 h, median (IQR) [known in] | 6(0–11) [N = 38] | 4(3–9) [N = 8] | 4(0–9) [N = 2838] |
| sICH, n(%; 95%CI) | 2(5; 1–16) | 1(10; 2–40) | 188 (6; 5–7) |
| Patency of the infraclinoidal ICA, n(%; 95%CI) | 5(12; 5–26) | 8(80; 49–94) | NA |
| Patency of the supraclinoidal ICA, n(%; 95%CI) | 13(32; 20–47) | 7(70; 40–89) | NA |
| Patency of the PCOM, n(%; 95%CI) | 14(34; 22–49) | 6(60; 31–83) | NA |
| Patency of the ACOM, n(%; 95%CI) | 38(93; 81.97) | 10(100; 72–100) | NA |
| Patency of the ACOM and PCOM (complete circle of Willis), n(%; 95%CI) | 26(63; 48–76) | 4(40; 17–69) | NA |
| Patency of the AChA, n(%; 95%CI) | 18(44; 30–59) | 3(30; 11–60) | NA |
| Patency of the ophthalmic artery, n(%; 95%CI) | 14(34; 22–49) | 3(30; 11–60) | NA |
| Plexus enhancement, n(%; 95%CI) | 35(85; 72–93) | 5(50; 24–76) | NA |
| Hypodensity on NCCT*, n(%; 95%CI) | 10(24; 14–39) | 5(50; 24–76) | NA |
| Hypodensity in internal capsule, n(%; 95%CI) | 3(7; 3–19) | 4(40; 17–69) | NA |
| ASPECTS at baseline, median (IQR) [known in] | 10(9–10) [N = 39] | 9(8–10) [N = 9] | NA |
| Collateral score, median (IQR) [known in] | 3(2–3) [N = 37] | 3(2.5–3) [N = 3] | NA |
| CBV reduction on CTP, n(%; 95%CI) [known in] | 5(50; 24–76) [N = 10] | 5(71; 36–92) [N = 7] | NA |
| CBF reduction on CTP, n(%; 95%CI) [known in] | 6(60; 31–83) [N = 10] | 7(100; 65–100) [N = 7] | NA |
| CBF/CBV mismatch on CTP, n(%; 95%CI) [known in] | 5(50; 24–76) [N = 10] | 3(43; 16–75) [N = 7] | NA |
If the [known in] number is not shown, the variable was known in all patients. 95%CI in italics
AchA anterior choroidal artery, ACOM anterior communicating artery, CBF cerebral blood flow, CBV cerebral blood volume, CTP CT perfusion, Delta-NIHSS NIHSS at baseline minus NIHSS at 24 h after stroke, EVT endovascular treatment, ICA internal carotid artery, IQR interquartile range, IVT intravenous thrombolysis, M1 first segment of middle cerebral artery, min minutes, mRS modified Rankin Scale score, N number of patients, NA not applicable/available, NIHSS National Institute of Health Stroke Scale, sICH symptomatic intracranial hemorrhage
*Hypodensity on NCCT is defined as ASPECTS ≤ 9