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Published in: Clinical Neuroradiology 1/2020

01-03-2020 | Stroke | Original Article

Long-term Outcome of Angioplasty Using a Wingspan Stent, Post-Stent Balloon Dilation and Aggressive Restenosis Management for Intracranial Arterial Stenosis

Authors: Seong-Cheol Park, Su Hee Cho, Moon-Kyu Kim, Ji-Eun Kim, Woo-Young Jang, Moon-Kyu Lee, Kwang-Deog Jo, Seung-Hoon You

Published in: Clinical Neuroradiology | Issue 1/2020

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Abstract

Purpose

To investigate the long-term outcome of stent angioplasty for symptomatic severe intracranial artery stenosis.

Method

In this study 95 consecutive patients with intracranial atherosclerotic stenosis (>70%) underwent stent angioplasty using Wingspan stents. The primary endpoints were stroke or death within 30 days of the procedure and subsequent stroke attributed to the stented vessel. Disabling stroke was defined as stroke with a modified Rankin scale > 3. Secondary endpoints included transient ischemic attacks, contralateral stroke, nonstroke death, and other events. Patients underwent prestent balloon dilation with or without poststent balloon dilation, close restenosis follow-up, and selective retreatment, as required.

Result

The mean follow-up duration was 34.9 ± 23.3 months. Primary endpoint events occurred in 23% of the patients. The median infarction volume was 2.6 ml, and 11 (68%) of 16 infarctions were <5 ml in volume. Disabling stroke occurred in 3% of patients. The primary endpoint rates were 17.9% within 30 days and 2.1% from 30 days to 1 year. Secondary endpoint events occurred in 27.3% of the patients. Mean stenosis was reduced from 76.8 ± 6.1% to 7.5 ± 13.4%. Of 80 patients who underwent angiographic follow-up, 11 (14%) experienced restenosis (≥50%) and 7 (9%) exhibited restenosis-related symptoms of transient ischemic attack. The rate of symptomatic restenosis was significantly higher in patients who underwent prestent balloon dilation alone than in patients who underwent prestent and poststent balloon dilation (p = 0.016).

Conclusion

The postprocedural stroke rate was similar to that observed in the SAMMPRIS study. Symptomatic restenosis may be reduced by poststent dilation, close angiographic follow-up, and retreatment.
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Metadata
Title
Long-term Outcome of Angioplasty Using a Wingspan Stent, Post-Stent Balloon Dilation and Aggressive Restenosis Management for Intracranial Arterial Stenosis
Authors
Seong-Cheol Park
Su Hee Cho
Moon-Kyu Kim
Ji-Eun Kim
Woo-Young Jang
Moon-Kyu Lee
Kwang-Deog Jo
Seung-Hoon You
Publication date
01-03-2020
Publisher
Springer Berlin Heidelberg
Keyword
Stroke
Published in
Clinical Neuroradiology / Issue 1/2020
Print ISSN: 1869-1439
Electronic ISSN: 1869-1447
DOI
https://doi.org/10.1007/s00062-019-00793-1

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