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PT  - JOURNAL ARTICLE
AU  - Lubicz, B.
AU  - Van der Elst, O.
AU  - Collignon, L.
AU  - Mine, B.
AU  - Alghamdi, F.
TI  - Silk Flow-Diverter Stent for the Treatment of Intracranial Aneurysms: A Series of 58 Patients with Emphasis on Long-Term Results
AID  - 10.3174/ajnr.A4143
DP  - 2014 Nov 06
TA  - American Journal of Neuroradiology
4099  - http://www.ajnr.org/content/early/2014/11/06/ajnr.A4143.short
4100  - http://www.ajnr.org/content/early/2014/11/06/ajnr.A4143.full
AB  - BACKGROUND AND PURPOSE: The Silk flow-diverter stent is increasingly used to treat complex intracranial aneurysms including wide-neck, fusiform aneurysms. Sparse data are available concerning long-term results of this technique. We report our 5-year experience with Silk stent treatment of intracranial aneurysms. MATERIALS AND METHODS: A retrospective review of our prospectively maintained database identified all patients treated by the Silk stent in 2 institutions. Clinical charts, procedural data, and angiographic results were reviewed. RESULTS: Between July 2009 and May 2014, we identified 58 patients with 70 intracranial aneurysms. Endovascular treatment was successful in 93% of patients with 32 treated with the first-generation Silk stent and 26 with the new Silk+ stent. Mean follow-up in 47 patients was 22 months. Despite an 11% delayed complication rate, overall permanent neurologic morbidity was 5.5%. All complications were seen with the first-generation Silk stent. There was no procedure-related mortality. Long-term anatomic results showed 73% with complete occlusion, 16% with neck remnants, and 11% with incomplete occlusion. No recanalization or retreatment was performed. The midterm intrastent stenosis rate was 57%, of which 60% improved or disappeared, 28% were stable, and 12% led to vessel occlusion. Seventy-four percent of stenosis and all vessel occlusions occurred with the first-generation Silk stent. CONCLUSIONS: Endovascular treatment of complex intracranial aneurysms with the Silk stent is an effective therapeutic option. Despite a high rate of delayed complications with the first-generation stents, the current Silk+ stent appears safer. This treatment achieves a high rate of adequate and stable occlusion at long-term follow-up. Abbreviations CLARITYClinical and Anatomical Results in the Treatment of Ruptured Intracranial AneurysmsPAOparent artery occlusion