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Table 1 Patient baseline Characteristics*

From: Futile recanalization after endovascular treatment in acute ischemic stroke with large ischemic core

Characteristics

Total (n = 120)

Age (years, mean and standard deviation)

71.0 ± 13.80

Male (n [%])

75 (62.5) 0

Mean interval between time of stroke onset and puncture (min)

342.1 ± 261.2

Mean interval between time of stroke onset and recanalization (min)

372.4 ± 260.2

Intravenous rt-PA use (n [%])

48 (40.0)0

Initial NIHSS † (IQR)

13 (11–17)

DWI ASPECTS ‡ (IQR)

44 (3–5)

mTICI reperfusion grade §

 

2b (n [%])

42 (35.0)0

3 (n [%])

78 (65.0)0

Collateral grade before EVT ¶

 

Poor (0–2) (n [%])

91 (75.8)0

Good (3–4) (n [%])

29 (24.2)0

Postprocedural hemorrhagic transformation (n [%])

73 (60.8)0

HI-1 (n [%])

23 (19.2)0

HI-2 (n [%])

15 (12.5)0

PH-1 (n [%])

12 (10.0)0

PH-2 (n [%])

22 (18.3)0

Symptomatic ICH (n [%])

8 (6.7)0

  1. * Values expressed with “±” are mean ± standard deviation
  2. † Scores on the National Institutes of Health Stroke Scale (NIHSS) range from 0 to 42, with higher scores indicating worse deficits
  3. ‡ Alberta Stroke Program Early Computed Tomography Scores (ASPECTS) range from 0 to 10, with lower values indicating a larger infarction
  4. § A modified TICI reperfusion grade of 2b or higher indicates antegrade reperfusion of more than half the previously occluded target artery ischemic territory
  5. ¶ The criteria described in the study of Higashida et al., with lower scores indicating poor collateral circulation (EVT = endovascular therapy)
  6. The radiographic definition of hemorrhagic transformation was classified by European Cooperative Acute Stroke Study (ECASS2) based on MRI after EVT (HI = hemorrhagic infarction; PH = parenchymal hemorrhage; ICH = intracerebral hemorrhage)