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English Abstract
Journal Article
[Sole angioplasty with tiny balloon for high-risk complex symptomatic intracranial atherosclerotic stenosis].
Objective: To explore the safety and short-term efficacy of sole angioplasty with tiny balloon for symptomatic intracranial atherosclerotic stenosis (ICAS) patients with complex lesions refractory. Methods: Consecutive 11 patients with complex ICAS lesions treated by sole angioplasty with tiny balloon (diameter≤2 mm) from September 2016 to November 2017 at Department of Neurosurgery, Beijing Hospital were retrospectively reviewed. Patients' demographics, lesions characteristics, procedures, complications, and clinical and imaging follow-up data were collected. There were 6 male and 5 female patients with mean age of 63.6 years (range: 45 to 77 years). Clinical manifestations were transient ischemia attack (TIA) in 4 cases, progressive ischemic stroke in 3 cases, recurrent stroke in 3 cases, and 1 case for preparation of scheduled radical resection of colon cancer. ICAS locations were middle cerebral artery M1 segment in 5 cases, M2 segment in 1 case, anterior cerebral artery A1 segment in 2 cases, and intracranial vertebral artery in 3 cases. Mean degree of ICAS stenosis was 92%. Lesion morphology was type A in 3 cases, B in 4 cases and C in 4 cases by Mori classification. Forward flow by modified thrombolysis in cerebral infarction (mTICI) was grade 1 to 2a in 8 cases, 2b in 3 cases. Collateral compensation grading was grade 2 in 5 cases, grade 3 in 6 cases. Results: Technique success rate was 10/11, peri-procedural complication rate was 1/11. Post-procedural forward flow in all cases had been enhanced and 10 cases obtained mTICI 2b to 3. Ten patients got favorable outcomes (modified Rankin score 0 to 2) at discharge. With a mean clinical follow-up time of 5.4 months, 1 patient was found to have TIA recurrence. With a mean clinical follow-up time of 7.4 months, 1 patient was found to have TIA recurrence. Eight in 11 cases obtained imaging follow-up during 3 months, and none restenosis was found. Conclusion: For symptomatic ICAS complex lesions, sole angioplasty with tiny balloon demonstrates relatively high safety with satisfactory short-term clinical and imaging results.
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