Between September 2016 and April 2021, seven consecutive patients (three females and four males, average age of 78.1 years, ranging from 69 to 87 years) with acute CCA occlusion, four on the right side and three on the left side, underwent MT. The pretreatment modified Rankin Scale (mRS) score was 0 in five patients, 2 in one patient with an earlier cerebral infarct, and 3 in another with chronic heart failure.
All patients met the criteria for age (age ≧18 years), groin puncture within 6 hours after stroke onset, a diffusion-weighted imaging Alberta Stroke Program Early Computed Tomography Score (DWI-ASPECTS) of ≧6 on brain DWI magnetic resonance images (MRI), a National Institutes of Health Stroke Scale (NIHSS) score of ≧6, and CCA thrombus progression confirmed on digital subtraction angiography.
Pre-procedure data included the DWI-ASPECTS at the time of admission and the CCA diameter at the occlusion site calculated by comparing it with the outer diameter of the balloon guide catheter (BGC). The treatment characteristics were the minutes from puncture to reperfusion, intravenous alteplase treatment, direct aspiration with a BGC, the number of passes required for reperfusion, femoral sheath obstruction during the procedure, and recanalization improvement determined with the thrombolysis in cerebral infarction (TICI) grade.19 ,20 ) The post-procedure imaging characteristics were carotid artery stenosis after MT and intracranial hemorrhage. The clinical outcomes were evaluated based on the mRS score obtained 3 months after surgery and a diagnosis of symptomatic hemorrhage as defined by the criteria promulgated by the European Cooperative Acute Stroke Study-2 (ECASS-2).21 )
All patients met the criteria for age (age ≧18 years), groin puncture within 6 hours after stroke onset, a diffusion-weighted imaging Alberta Stroke Program Early Computed Tomography Score (DWI-ASPECTS) of ≧6 on brain DWI magnetic resonance images (MRI), a National Institutes of Health Stroke Scale (NIHSS) score of ≧6, and CCA thrombus progression confirmed on digital subtraction angiography.
Pre-procedure data included the DWI-ASPECTS at the time of admission and the CCA diameter at the occlusion site calculated by comparing it with the outer diameter of the balloon guide catheter (BGC). The treatment characteristics were the minutes from puncture to reperfusion, intravenous alteplase treatment, direct aspiration with a BGC, the number of passes required for reperfusion, femoral sheath obstruction during the procedure, and recanalization improvement determined with the thrombolysis in cerebral infarction (TICI) grade.19 ,20 ) The post-procedure imaging characteristics were carotid artery stenosis after MT and intracranial hemorrhage. The clinical outcomes were evaluated based on the mRS score obtained 3 months after surgery and a diagnosis of symptomatic hemorrhage as defined by the criteria promulgated by the European Cooperative Acute Stroke Study-2 (ECASS-2).21 )
