Table 3

Univariate associations with functional outcome at 90 days in 205 patients who underwent mechanical thrombectomy for treatment of anterior circulation occlusion

VariableGood (mRS 0–2)
(n=86)
Poor (mRS 3–6)
(n=119)
P value
Sex (women) (n (%))45 (52)57 (48)0.532
Age (years) (mean±SD)60.05 (13.83)67.17 (13.39)<0.001
Occlusion site (n (%))
 ICA13 (15)29 (24)0.166
 M163 (73)82 (69)
 M210 (12)8 (7)
Onset to groin (min) (mean±SD)303.30 (167.34)305.69 (154.00)0.916
mTICI grade (n (%))
 mTICI 02 (2)16 (13)<0.001
 mTICI 11 (1)7 (6)
 mTICI 2a3 (3)16 (13)
 mTICI 2b15 (17)39 (33)
 mTICI 2c25 (29)11 (9)
 mTICI 340 (47)30 (25)
Groin to revascularization (min) (mean±SD)60.05 (43.64)62.41 (34.73)0.681
Onset to revascularization (hours) (mean±SD)6.03 (2.73)6.00 (2.60)0.921
History of HTN (n (%))61 (71)89 (75)0.538
History of DM (n (%))18 (21)35 (29)0.171
History of HLD (n (%))33 (38)57 (48)0.175
History of A-fib (n (%))24 (28)57 (48)0.004
Smoking history (n (%))45 (52)47 (39)0.068
NIHSS score (mean±SD)16.24 (5.68)19.27 (4.82)<0.001
tPA (n (%))47 (55)55 (46)0.201
No of passes (n (%))
 1 pass37 (43)32 (27)0.016
 ≥2 passes (BFP)49 (57)87 (73)
Stent retriever length (mm)* (mean±SD)23.92 (7.06)24.96 (7.93)0.356
  • Continuous variables presented as mean ±SD); categorical/binary variables presented as n (%).

  • P  value  < 0.05 considered statistically significant.

  • *Stent retriever length refers to mean initial stent retriever length.

  • A-fib, atrial fibrillation; DM, diabetes mellitus; HLD, hyperlipidemia; HTN, hypertension; ICA, internal carotid artery; M1, M1 segment of middle cerebral artery; M2, M2 segment of middle cerebral artery; mRS, modified Rankin Scale; mTICI, modified Thrombolysis in Cerebral Infarction; BFP, beyond-first pass; NIHSS, National Institutes of Health Stroke Scale; tPA, tissue plasminogen activator.