Treatment of intracranial aneurysms with the Enterprise stent: a multicenter registry

Mocco, J; Snyder, Kenneth V.; Albuquerque, Felipe C; Bendok, Bernard R.; S, Boulos Alan; Carpenter, Jeffrey; Fiorella, David; Hoh, Brian L.; Howington, Jay U.; Jankowitz, Brian T.; Liebman, Kenneth; Ansaar, T; Rodríguez‐Mercado, Rafael; Siddiqui, Adnan H.; Veznedaroglu, Erol; Hopkins, L. Nelson; Levy, Elad I.

doi:10.3171/2008.7.jns08322

Cited by 242 publications

(158 citation statements)

References 15 publications

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“…Previous studies showed initial complete occlusion rates from 27-73 % [37][38][39][40] in treating aneurysms by stentassisted coiling; compared with these studies, our results appeared moderate (63 % in group A and 44 % in group B). The cases included in the present series were all widenecked and ruptured aneurysms, thus posing a challenge to angiographic occlusion.…”

Section: Discussioncontrasting

confidence: 64%

Stent-Assisted Coil Embolization for the Treatment of Ruptured Aneurysms at the Anterior Circulation: Comparison Between HydroSoft Coils and Bare Platinum Coils

Che

Hong

et al. 2013

Cardiovasc Intervent Radiol

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Purpose To evaluate the perioperative safety and midterm prognosis (B12 months) of HydroSoft coils in treating ruptured aneurysms at the anterior circulation compared with bare platinum coils. Materials and Methods Patients with aneurysmal subarachnoid hemorrhages admitted to our hospital between January 2009 and March 2012 were retrospectively analyzed. According to strict inclusion and exclusion criteria, cases were selected and classified into two groups: In group A, HydroSoft coils were used as the primary filling coils (C40 % of total coil length); in group B, only bare platinum coils were used. Cases in both groups were all treated with stent-assistance. A comparison between the two groups was performed for periprocedural complications as well as immediate and mid-term outcomes. The stents used included Enterprise, Neuroform, and Solitaire.Results Fifty-six aneurysms were in group A patients, and 68 aneurysms were in group B patients. Compared with group B, group A did not have increased incidence of complications but had greater packing attenuation (44.5 ± 8.8-29.8 ± 9.1 %, t = 2.577, P = 0.014) and increased initial complete occlusion rates (63-44 %, v 2 = 4.161, P = 0.041). Radiologic follow-up were performed in 46 patients from group A and 51 patients from group B. Complete occlusion rates at follow-up were significantly greater in group A than in group B (89.1-70.6 %, v 2 = 5.08, P = 0.043); the difference in recanalization rates were statistically insignificant between the groups (6.5-5.9 %, P = 1.000). Conclusion HydroSoft coils proved safe during the periprocedural period and provided greater initial complete occlusion rates, greater packing density, and better followup results compared with bare platinum coils.

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Section: Discussioncontrasting

confidence: 64%

Stent-Assisted Coil Embolization for the Treatment of Ruptured Aneurysms at the Anterior Circulation: Comparison Between HydroSoft Coils and Bare Platinum Coils

Che

Hong

et al. 2013

Cardiovasc Intervent Radiol

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“…In the clinical course of 219 aneurysms treated with the Enterprise VRD, 3% of cases demonstrated significant (AE50%) in-stent stenosis or occlusion. 12,13) Delayed thrombotic events occurred in seven cases (3%), and all delayed events were concomitant to cessation of dual-antiplatelet therapy. 12,13) The factors that contribute to the risk of in-stent stenosis are not established, and it is not clear whether ISA is associated with in-stent stenosis or how long dual antiplatelet therapy should be continued in the postoperative period.…”

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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“…The Enterprise stent is retractable after partial deployment. Exact placement is mostly easy but penetration of the small stent cells with a microcatheter can be challenging [8,9,39] . The body of the stent itself is almost invisible under fl uoroscopy [8] .…”

Section: Cells Not Connectedmentioning

confidence: 99%

“…Stent displacement may be encountered if coiling is attempted immediately after deployment. Therefore awaiting stent endothelialization or coiling with a " jailed " microcatheter is recommended [9] . An adverse event unique for the Enterprise is secondary proximal migration if a short stent is deployed into vessel segments with large caliber diff erences [40] .…”

Section: Cells Not Connectedmentioning

confidence: 99%

A Comparison of Functional and Physical Properties of Self-Expanding Intracranial Stents [Neuroform3, Wingspan, Solitaire, Leo(+), Enterprise]

Krischek

Miloslavski

Fischer

et al. 2011

Minim Invasive Neurosurg

163

142

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Treatment of intracranial aneurysms with the Enterprise stent: a multicenter registry

Cited by 242 publications

References 15 publications

Stent-Assisted Coil Embolization for the Treatment of Ruptured Aneurysms at the Anterior Circulation: Comparison Between HydroSoft Coils and Bare Platinum Coils

Stent-Assisted Coil Embolization for the Treatment of Ruptured Aneurysms at the Anterior Circulation: Comparison Between HydroSoft Coils and Bare Platinum Coils

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

A Comparison of Functional and Physical Properties of Self-Expanding Intracranial Stents [Neuroform3, Wingspan, Solitaire, Leo(+), Enterprise]

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