Complex-Shaped Platinum Coils for Brain Aneurysms: Higher Packing Density, Improved Biomechanical Stability, and Midterm Angiographic Outcome

Wakhloo, Ajay K.; Gounis, Matthew J.; Sandhu, Sukhwinder J.S.; Akkawi, Nabil; Schenck, Alexander; Linfante, Italo

doi:10.3174/ajnr.a0542

Cited by 84 publications

(65 citation statements)

References 26 publications

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“…Packing attenuation, the volume ratio of implanted coils to the volume of the aneurysm, was calculated as previously described. 9 We calculated coil volume for each aneurysm, assuming that the coil was a solid cylinder by using the primary coil diameter given in the manufacturer's specifications.…”

Section: Angiographic and Endovascular Proceduresmentioning

confidence: 99%

“…In addition, aneurysm recanalization is observed in 20%-40% of cases due to coil compaction, migration of coils into the aneurysm thrombus, or aneurysm growth. [7][8][9][10] Introduction of stents designed as an adjunct tool for coiling has been shown, in the short-term, to be of beneficial value. [11][12][13][14][15] However, a variety of devices, different in their design and coating, was used with a high periprocedural mortality and morbidity.…”

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confidence: 99%

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Closed-Cell Stent for Coil Embolization of Intracranial Aneurysms: Clinical and Angiographic Results

Wakhloo

Linfante

Silva

et al. 2012

AJNR Am J Neuroradiol

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BACKGROUND AND PURPOSE:Recanalization is observed in 20 -40% of endovascularly treated intracranial aneurysms. To further reduce the recanalization and expand endovascular treatment, we evaluated the safety and efficacy of closed-cell SACE. MATERIALS AND METHODS:Between 2007 and 2010, 147 consecutive patients (110 women; mean age, 54 years) presenting at 2 centers with 161 wide-neck ruptured and unruptured aneurysms were treated by using SACE. Inclusion criteria were wide-neck aneurysms (Ͼ4 mm or a dome/neck ratio Յ2). Clinical outcomes were assessed by the mRS score at baseline, discharge, and follow-up. Aneurysm occlusion was assessed on angiograms by using the RS immediately after SACE and at follow-up.

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Section: Angiographic and Endovascular Proceduresmentioning

confidence: 99%

mentioning

confidence: 99%

Closed-Cell Stent for Coil Embolization of Intracranial Aneurysms: Clinical and Angiographic Results

Wakhloo

Linfante

Silva

et al. 2012

AJNR Am J Neuroradiol

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“…4) However, initial complete occlusion and high embolization rates are important factors that significantly decrease the recurrence rate after treatment. 5,6) Stable framing may lead to subsequent stable filling/finishing, playing an important role in achieving a high embolization rate. Several studies reported that complex coils showed higher embolization and lower recanalization rates compared with helical coils.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Clinical Outcomes Using 10 Coil Versus 14 Coil in Endovascular Coil Embolization for Small and Medium-sized Intracranial Aneurysms: Efficacy of 14 Coil

Imai

Ohshima

Goto

et al. 2016

JNET

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“…In cases where microcatheter movement is restricted, it is important to understand the role of the coil's shape memory and the stiffness of the coil on coil distribution. Moreover, various types of coils [12][13][14][15] have been developed for the treatment of unfavorable aneurysm configurations. However, a consensus has not been established regarding the most effective coil type for the coil embolization of wide-necked and bilobulated aneurysms with stent assistance, as basic research is lacking.…”

Section: Introductionmentioning

confidence: 99%

The utility of low shape memory coil as first coil during stent-assisted embolization in wide-necked and bilobulated cerebral aneurysm model

Matsumoto¹,

Nakai

Tsutsumi

et al. 2014

JNET

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• Abstract • Objective: Coil embolization for wide-necked and bilobulated aneurysms remains a technical challenge even with stent assistance. Stent assistance prevents coil protrusion to the parent vessel, but restricts microcatheter movement. The restriction of microcatheter movement makes the role of the coil's shape memory important on the coil distribution within the aneurysm. We aimed to determine which coils are appropriate for wide-necked and bilobulated aneurysms with stent assistance by investigating the distribution of coils with differing shape memory. Methods: A silicone bilobulated aneurysm model was used to compare three types of coils (ED coil Infini, Axium Helix, and Axium 3D). Coil performance was assessed using three parameters: (1) the effect of stent assistance on coil distribution, (2) the difference in first coil distribution caused by a difference in shape memory, and (3) the influence of first coil distribution on second coil distribution. Results: Without stent assistance, coil protrusion into the parent vessel was detected immediately after beginning coil insertion for ED coil Infini; however, this coil protrusion was prevented using stent assistance. With stent assistance, the lowest shape memory coil resulted in the most homogenous distribution. The distribution of second coil was influenced by first coil. Conclusion: Without stent assistance, low shape memory coil was more likely to prolapse into the parent vessel compared to higher shape memory coil. When combined with a stent, the low shape memory coil demonstrated more homogenous distribution of the aneurysm compared to the higher shape memory coil, and allowed denser packing.•

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Complex-Shaped Platinum Coils for Brain Aneurysms: Higher Packing Density, Improved Biomechanical Stability, and Midterm Angiographic Outcome

Cited by 84 publications

References 26 publications

Closed-Cell Stent for Coil Embolization of Intracranial Aneurysms: Clinical and Angiographic Results

Closed-Cell Stent for Coil Embolization of Intracranial Aneurysms: Clinical and Angiographic Results

Comparison of Clinical Outcomes Using 10 Coil Versus 14 Coil in Endovascular Coil Embolization for Small and Medium-sized Intracranial Aneurysms: Efficacy of 14 Coil

The utility of low shape memory coil as first coil during stent-assisted embolization in wide-necked and bilobulated cerebral aneurysm model

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