Background Drug coated balloon (DCB) angioplasty can provide sustained anti-restenotic efficacy without the limitations of permanent vascular implantation and is presumably ideal for treating intracranial atherosclerotic disease. However, the safety of paclitaxel in the neurovasculature remains a concern.
Methods 242 patients with angiographically verified symptomatic stenosis >70% in intracranial arteries treated with DCB angioplasty were reviewed divided into two groups: group A, patients with stenotic intracranial arteries; and group B, patients with acute, subacute, or chronic occluded intracranial arteries. The primary endpoint was any stroke or death within 30 days. The secondary endpoint was arterial restenosis of >50% during follow-up.
Results 16 major and 12 minor complications occurred among 245 procedures (6.5% and 4.9%, respectively). Five patients died within 30 days after the procedure (2.1%, 5/242). 12 major and 12 minor complications occurred among 211 procedures in group A (5.7% and 5.7%). In group B, four major complications occurred among 34 procedures (11.8%). Hyperperfusion and perforator stroke accounted for half of all complications (53.6%, 15/28). Restenosis >50% was present in eight lesions during the follow-up period (4.8%, 8/167).
Conclusions After treatment with DCB angioplasty, complications were no different from those after standard balloon angioplasty or stenting. This study suggests that DCB angioplasty may be a safe and effective procedure for intracranial arterial stenosis.
Data availability statement
Data sharing not applicable as no datasets generated and/or analyzed for this study.
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Contributors AY-CW and C-HC started the treatment regimen. HQ, SL, WL, GL, XC, RW, and HL joined force in the clinical study. AY-C W is responsible for the overall content of the study.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial, or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
Author note AY-C W is responsible for the overall content of the study.
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