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    Prospective study on embolization of intracranial aneurysms with the pipeline device: the PREMIER study 1 year results

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    Authors
    Hanel, Ricardo A.
    Puri, Ajit S.
    UMass Chan Affiliations
    New England Center for Stroke Research, Department of Radiology
    Document Type
    Journal Article
    Publication Date
    2019-07-15
    Keywords
    aneurysm
    artery
    brain
    flow diverter
    intervention
    Analytical, Diagnostic and Therapeutic Techniques and Equipment
    Cardiovascular Diseases
    Cardiovascular System
    Health Services Administration
    Neurology
    Radiology
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    https://doi.org/10.1136/neurintsurg-2019-015091
    Abstract
    BACKGROUND: Preliminary clinical studies on the safety and efficacy of the pipeline embolization device (PED) for the treatment of small/medium aneurysms have demonstrated high occlusion rates with low complications. OBJECTIVE: To evaluate the safety and effectiveness of the PED for treatment of wide necked small and medium intracranial aneurysms. METHODS: PREMIER is a prospective, multicenter, single arm trial. Patients were treated with the PED for unruptured wide necked aneurysms, measuring < /=12 mm along the internal carotid artery or vertebral artery, between July 2014 and November 2015. At 1 year post-procedure, the primary effectiveness endpoint was complete occlusion (Raymond grade 1) without major parent vessel stenosis ( < /=50%) or retreatment, and the primary safety endpoint was major stroke in the territory supplied by the treated artery or neurologic death. RESULTS: A total of 141 patients were treated with PEDs (mean age 54.6+/-11.3 years, 87.9% (124/141) women). Mean aneurysm size was 5.0+/-1.92 mm, and 84.4% (119/141) measured < 7 mm. PED placement was successful in 99.3% (140/141) of patients. Mean number of PEDs implanted per patient was 1.1+/-0.26; a single PED was used in 92.9% (131/141) of patients. At 1 year, 97.9% (138/141) of patients underwent follow-up angiography with 76.8% (106/138) of patients having met the study's primary effectiveness endpoint. The combined major morbidity and mortality rate was 2.1% (3/140). CONCLUSIONS: Treatment of wide necked small/medium aneurysms with the PED results in high rates of complete occlusion without significant parent vessel stenosis and low rates of permanent neurologic complications. TRIAL REGISTRATION: NCT02186561.
    Source

    J Neurointerv Surg. 2019 Jul 15. pii: neurintsurg-2019-015091. doi: 10.1136/neurintsurg-2019-015091. [Epub ahead of print] Link to article on publisher's site

    DOI
    10.1136/neurintsurg-2019-015091
    Permanent Link to this Item
    http://hdl.handle.net/20.500.14038/48376
    PubMed ID
    31308197
    Notes

    Full author list omitted for brevity. For the full list of authors, see article.

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    Link to Article in PubMed

    ae974a485f413a2113503eed53cd6c53
    10.1136/neurintsurg-2019-015091
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