Abstract
Purpose
Thin-strut, flexible DES are suitable for intracranial stenting and may improve long-term vessel patency. The purpose of this study was to report our experience with two new-generation DES for the treatment of intracranial atherosclerotic disease.
Patients and Methods
We retrospectively reviewed all patients treated with Taxus Element™ or Resolute Integrity™ stent for an intracranial atherosclerotic stenosis between March 2011 and August 2013. Technical success was defined as the ability to deploy the device at the desired location and reduce the degree of stenosis below 50 %. All procedure-related strokes were recorded. Control angiography was scheduled after 6 weeks, 3, 6, and 12 months and yearly thereafter. A luminal narrowing ≥50 % was regarded as a restenosis. Stroke recurrence in the territory of the treated artery was reported.
Results
In the defined period we treated 101 patients harboring 117 intracranial stenoses. The procedure was successful in 100 (85.5 %) lesions. Procedure-related strokes occurred in 10 (9.9 %) patients with a permanent morbidity in 3 (3.0 %). Follow-up angiography was available for 83 of 100 (83.0 %) successfully treated lesions with an average of 355 days (IQR 153–482 days). Three (3.6 %) asymptomatic restenoses were detected. All occurred after treatment with Resolute Integrity™, none after Taxus Element™ (p = 0.059). New strokes in the territory of the treated artery were encountered in 2 (2.6 %) occasions.
Conclusion
Thin-strut DES improve long-term patency and reduce the risk of subsequent stroke. Differences between devices may exist. Feasibility is comparable to bare-metal balloon-mounted stents and procedure-related strokes occurred within the expected range.
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Acknowledgments
We thank James Lago for language review, Ralf Hannes for assistance with the image material, and Hiltrud Niggemann for statistical support.
Conflict of interest
Wiebke Kurre is a consultant to phenox, received speaker’s honoraria from Codman Inc., travel expenses from phenox and a research Grant from Covidien. Marta Aguilar-Pérez has proctoring contracts with phenox and a consulting agreement with Codman Inc. Sebastian Fischer has no conflict of interest. Guy Arnold received speaker’s honoraria and travel expenses from Allergan Pharma, Boehringer Ingelheim, EISAI, Genzyme, Merck-Serono, Novartis, UCB, TEVA. Elisabeth Schmid received speaker’s honoraria from Bayer Vital and Bristol-Meyers-Squibb. Hansjörg Bäzner received speaker’s honoraria from Biogen Idec, Bayer Vital, UCB Pharma and Boehringer Ingelheim. Hans Henkes has proctoring and/or consulting agreements with Covidien, Codman, ab medica, MicroVention, phenox and SHS Tübingen, is co-founder and shareholder of phenox and received scientific Grants from Siemens, Covidien and Codman. Informed consent was obtained from all individual patients included in this case series. For a retrospective data analysis formal ethics approval was not required. The ethics committee was consulted and confirmed exemption.
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Kurre, W., Aguilar-Pérez, M., Fischer, S. et al. Solving the Issue of Restenosis After Stenting of Intracranial Stenoses: Experience with Two Thin-Strut Drug-Eluting Stents (DES)—Taxus Element™ and Resolute Integrity™. Cardiovasc Intervent Radiol 38, 583–591 (2015). https://doi.org/10.1007/s00270-014-1001-3
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DOI: https://doi.org/10.1007/s00270-014-1001-3