Abstract
Objective
Methods
Results
References
Table 1.
Variable | 4×40 (25 patients) | 4×20 (45 patients) | p-value* |
---|---|---|---|
Dermographic | |||
Sex, male | 14 (56.0) | 27 (60.0) | 0.601 |
Age (years) | 72.0±12.7 | 69.0±13.1 | 0.449 |
HTN | 15 (60.0) | 25 (55.6) | 0.552 |
DM | 5 (20.0) | 10 (22.2) | 0.680 |
Af | 8 (32.0) | 12 (26.7) | 0.346 |
CAD | 5 (20.0) | 9 (20.0) | 0.889 |
Dyslipidemia | 7 (28.0) | 16 (35.6) | 0.465 |
Smoking | 5 (20.0) | 13 (28.9) | 0.263 |
Prior stroke or TIA | 4 (16.0) | 7 (15.6) | 0.793 |
Previous anti-platelet use | 6 (24.0) | 9 (20.0) | 0.571 |
Previous anti-coagulant use | 3 (12.0) | 4 (8.9) | 0.466 |
Occlusions in the left hemisphere | 14 (56.0) | 24 (53.3) | 0.702 |
IV t-PA | 8 (32.0) | 18 (40.0) | 0.109 |
Initial NIHSS | 10 (2–18) | 8 (2–18) | 0.127 |
ASPECTS score | 9 (6–10) | 9 (6–10) | 0.924 |
Etiology of stroke | |||
Cardio-embolic | 10 (40.0) | 22 (48.9) | 0.297 |
Atherosclerosis | 7 (28.0) | 10 (22.2) | 0.382 |
Dissection | 1 (4.0) | 1 (2.2) | 0.307 |
Other or undetermined | 7 (28.0) | 12 (26.7) | 0.693 |
Site of arterial occlusion | |||
MCA | 13 (52.0) | 27 (60.0) | 0.419 |
Distal ICA | 10 (40.0) | 13 (28.9) | 0.310 |
Posterior circulation | 2 (8.0) | 5 (11.1) | 0.507 |
Procedure detail | |||
Procedure time (minutes) | 34 (14–82) | 46 (15–91) | 0.247 |
Use of BGC | 24 (96.0) | 42 (93.3) | 0.776 |
Aspirationcatheter,CAT6:Sofia5 | 21 : 4 | 33 : 12 | 0.186 |
Radiopaque stent retriever | 25 (100.0) | 20 (44.4) | 0.001† |
* p-values are calculated by chi-square test or Fisher’s exact test and Mann-Whitney U test or Student’s t-test.
4×40 : Solitaire Platinum 4×40 mm stent retriever, 4×20 : Solitaire 2 FR 4×20 mm stent retriever + Solitaire Platinum 4×20 mm stent retriever, HTN : hypertension, DM : diabetes mellitus, Af : atrial fibrillation, CAD : coronary artery disease, TIA : transient ischemic attack, IV t-PA : intravenous tissue-plasminogen activator, NIHSS : National Institutes of Health Stroke Scale, ASPECT : Alberta Stroke Program Early CT, MCA : middle cerebral artery, ICA : internal carotid artery, BGC : balloon guide catheter, CAT6 : 6 Fr Catalyst, Sofia5 : 5 Fr Sofia
Table 2.
4×40 (25 patients) | 4×20 (25 patients) | p-value* | |
---|---|---|---|
Outcome | |||
Successful recanalization | 24 (96.0) | 43 (95.6) | 0.842 |
First-pass reperfusion | 17 (68.0) | 21 (46.7) | 0.004† |
First-pass complete reperfusion | 12 (48.0) | 15 (33.3) | 0.007† |
Favorable 3 months mRS | 14 (56.0) | 23 (51.1) | 0.592 |
Complication | |||
Post thrombectomy hemorrhage | 2 (8.0) | 4 (8.9) | 0.627 |
Symptomatic hemorrhage | 1 (4.0) | 2 (4.4) | 0.793 |
Vessel perforation | 0 (0.0) | 0 (0.0) | 1.000 |
Arterial dissection | 0 (0.0) | 0 (0.0) | 1.000 |
Distal emboli | 2 (8.0) | 4 (8.9) | 0.679 |
Hemorrhagic transformation of infarct | 4 (16.0) | 9 (20.0) | 0.391 |
3 months mortality | 2 (8.0) | 4 (8.9) | 0.497 |
* p-values are calculated by chi-square test or Fisher’s exact test and Mann-Whitney U test or Student’s t-test.
4×40 : Solitaire Platinum 4×40 mm stent retriever, 4×20 : Solitaire 2 FR 4×20 mm stent retriever + Solitaire Platinum 4×20 mm stent retriever, Successful recanalization : thrombolysis in cerebral infarction 2b or 3, mRS : modified Rankin Scale, Favorable mRS : 90 days mRS ≤2, First-pass reperfusion : modified thrombolysis in cerebral infarction 2b or 3 with the first pass, First-pass complete reperfusion : modified thrombolysis in cerebral infarction 3 with the first pass
Table 3.
OR | 95% CI | p-value* | |
---|---|---|---|
First-pass reperfusion | |||
Initial NIHSS | 2.95 | 0.61–4.38 | 0.442 |
IV t-PA | 0.97 | 0.58–2.26 | 0.367 |
CAT6 Aspiration catheter | 1.86 | 0.78–3.14 | 0.172 |
Radiopaque stent retriever | 2.08 | 1.22–3.84 | 0.014† |
Long stent retriever (Platinum 4×40 mm) | 2.81 | 1.34–4.10 | 0.008† |
First-pass complete reperfusion | |||
Initial NIHSS | 2.72 | 0.58–4.46 | 0.407 |
IV t-PA | 0.82 | 0.66–3.08 | 0.266 |
CAT6 Aspiration catheter | 2.06 | 0.82–3.90 | 0.312 |
Radiopaque stent retriever | 1.88 | 1.20–3.12 | 0.022† |
Long stent retriever (Platinum 4×40 mm) | 2.12 | 1.48–3.76 | 0.012† |
TICI : thrombolysis in cerebral infarction, OR : odds ratio, CI : confidence interval, First-pass reperfusion : modified TICI 2b or 3 with the first pass, NIHSS : National Institutes of Health Stroke Scale, IV t-PA : intravenous tissue-plasminogen activator, CAT6 : 6 French Catalyst, First-pass complete reperfusion : modified TICI 3 with the first pass