A new self-expanding nitinol stent (Enterprise) for the treatment of wide-necked intracranial aneurysms: initial clinical and angiographic results in 31 aneurysms

Weber, W.; Bendszus, Martin; Kis, Bernhard; Boulanger, T.; Solymosi, L.; Kühne, D.

doi:10.1007/s00234-007-0232-2

Cited by 143 publications

(97 citation statements)

References 7 publications

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“…In previous reports, in-stent stenosis after the deployment of an intracranial stent occurred in about 5% of cases. 5,19,20) Conservative antiplatelet therapy might be effective, because many patients are asymptomatic and demonstrate partial or complete resolution at follow-up. In the clinical course of 219 aneurysms treated with the Enterprise VRD, 3% of cases demonstrated significant (AE50%) in-stent stenosis or occlusion.…”

Section: Discussionmentioning

confidence: 99%

Analysis of Closed-Cell Intracranial Stent Characteristics Using Cone-Beam Computed Tomography With Contrast Material

Tsuruta

Matsumaru

Hamada

et al. 2013

Neurol. Med. Chir.(Tokyo)

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The intracranial nitinol stent named the Enterprise Vascular Reconstruction Device has poor radiographic visibility. The characteristics of closed-cell intracranial stents were investigated and the efficacy of intraoperative stent visualization examined with the 80 kV high-resolution XperCT protocol, which is a flat detector C-arm volume acquisition functionality system integrated with the angiography equipment. We treated 39 aneurysms with stent-assisted coil embolization. The aneurysms were located on the internal carotid artery in 24 cases, the anterior communicating artery (AcomA) in three, the basilar artery (BA) in 10, and the vertebral artery in two. Intraoperative 80 kV XperCT was performed in all cases after deposition of the stent. We evaluated the coverage of the aneurysm neck, incomplete stent apposition (ISA), and shift of vessels. Accurate stent visualization was achieved in 29 of the 39 cases without coil and delivery wire artifact. Coverage of the aneurysm neck succeeded in 28 cases; there was one case of BA top Y-configuration stenting in which the stent was dislocated into the aneurysm. ISA was detected in nine cases, including seven kinks and one flattening in the carotid siphon and one kink in the BA top. We detected linearization of vessels due to stent deployment in three AcomA cases and three BA top cases. We conclude that intraoperative 80 kV XperCT is an efficient modality for the evaluation of ISA. Stent kinking in the carotid siphon and linearization in distal vessels can be detected with this protocol.

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Section: Discussionmentioning

confidence: 99%

Analysis of Closed-Cell Intracranial Stent Characteristics Using Cone-Beam Computed Tomography With Contrast Material

Tsuruta

Matsumaru

Hamada

et al. 2013

Neurol. Med. Chir.(Tokyo)

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“…[1][2][3][4][5][6][7][8][9][10][11] However, wide-neck aneurysms located at the arterial bifurcations, especially in the aneurysms where the bifurcating branches emanate directly from the base of the aneurysm, may still not be amenable to being treated by using a single stent. Recently, Y-configuration double stent-assisted coil embolization (open-cell design Neuroform stent; Boston Scientific, Natick, Massachusetts) was reported to be a safe and effective option for the endovascular treatment of these bifurcation aneurysms.…”

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confidence: 99%

A Novel “Y” Stent Flow Diversion Technique for the Endovascular Treatment of Bifurcation Aneurysms without Endosaccular Coiling

Cekirge¹,

Yavuz²,

Geyik³

et al. 2011

AJNR Am J Neuroradiol

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“…Several groups of investigators have utilized the following AT regimen after ES-assisted cerebral aneurysm coiling: ASA (80-325 mg) and clopidogrel (75 mg) for a minimum of 1-6 months, followed by lifelong therapy with ASA alone, [1][2][3][4] and some studies have reported that ischemic events can occur if AT therapy is modified or terminated. For example, Mocco et al 5) reported that delayed thrombotic events occurred in 7 of 213 (3%) patients after ESassisted coiling in whom dual AT therapy was terminated.…”

Section: Discussionmentioning

confidence: 99%

“…Many groups of investigators have described using a 1 to 6-month period of dual AT with acetylsalicylic acid (ASA) (80-325 mg) and clopidogrel (75 mg), followed by lifelong ASA therapy in patients who have undergone coiling with ES. [1][2][3][4] However, some of these patients require suspension of AT if the need for surgery or biopsy arises, and some studies have reported that delayed infarction can occur after cessation or modification of AT in patients who have undergone coiling with ES. [5][6][7] Conversely, long-term AT therapy is associated with a significant risk of hemorrhagic complications.…”

Section: Introductionmentioning

confidence: 99%

Enterprise Stent-assisted Cerebral Aneurysm Coiling: Can Antiplatelet Therapy be Terminated after Neointima Formation with the Enterprise Stent?

Takayama

Taoka

Myouchin

et al. 2016

JNET

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Objective: Patients who undergo Enterprise stent (ES)-assisted cerebral aneurysm coiling require long-term antiplatelet therapy (AT). Some studies have reported that cessation or modification of AT increases the risk of cerebral infarction.The aim of this study was to evaluate whether AT can terminated without increasing the risk of ischemic events among patients who have undergone ES-assisted cerebral aneurysm coiling. Methods:This study evaluated 9 with 11 unruptured aneurysms were confirmed to have neointima formation with the ES on follow-up angiography. Dual AT was given for ≥3 months postoperatively, then one antiplatelet agent was administered until ≥6 months postoperatively before termination of all AT. Incidences of ipsilateral ischemic events and stent occlusion after AT termination were assessed prospectively.Results: During follow-up (mean, 32.8 months; range, 21.5-51.3 months) ipsilateral ischemic events and stent occlusion did not occur in any cases. Conclusion:Termination of AT ≥6 months postoperatively did not result in ischemic events among patients with neointima formation after ES-assisted cerebral aneurysm coiling.

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A new self-expanding nitinol stent (Enterprise) for the treatment of wide-necked intracranial aneurysms: initial clinical and angiographic results in 31 aneurysms

Abstract: The reported results demonstrated the safety and feasibility of the Cordis Neurovascular Enterprise stent in the treatment of wide-necked intracranial aneurysms. Initial clinical and angiographic results are favorable.

Cited by 143 publications

References 7 publications

Analysis of Closed-Cell Intracranial Stent Characteristics Using Cone-Beam Computed Tomography With Contrast Material

Analysis of Closed-Cell Intracranial Stent Characteristics Using Cone-Beam Computed Tomography With Contrast Material

A Novel “Y” Stent Flow Diversion Technique for the Endovascular Treatment of Bifurcation Aneurysms without Endosaccular Coiling

Enterprise Stent-assisted Cerebral Aneurysm Coiling: Can Antiplatelet Therapy be Terminated after Neointima Formation with the Enterprise Stent?

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