Are Coil Compaction and Aneurysmal Growth Two Distinct Etiologies Leading to Recurrence Following Endovascular Treatment of Intracranial Aneurysm?

Abdihalim, Mohamed; Watanabe, Masaki; Chaudhry, Saqib A; Jagadeesan, Bharati; Suri, M. Fareed K.; Qureshi, Adnan I.

doi:10.1111/j.1552-6569.2012.00786.x

Cited by 38 publications

(26 citation statements)

References 20 publications

(51 reference statements)

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“…The prothrombotic environment that coils create8 9 are likely to have a greater effect on blood within the coil mass than outside the coil mass. Coil compaction and aneurysm growth are two methods of aneurysm recurrence 10 11. Blood along the wall of a Class IIIb aneurysm may promote coil compaction and/or lead to increased wall stress causing aneurysm growth.…”

Section: Discussionmentioning

confidence: 99%

An update to the Raymond–Roy Occlusion Classification of intracranial aneurysms treated with coil embolization

Mascitelli

Moyle

Oermann

et al. 2014

J NeuroIntervent Surg

260

157

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We propose the MRRC to further differentiate Class III aneurysms into those likely to progress to complete occlusion and those likely to remain incompletely occluded or to worsen. The MRRC has the potential to expand the definition of adequate coil embolization, possibly decrease procedural risk, and help endovascular neurosurgeons predict which patients need closer angiographic follow-up. These findings need to be validated in a prospective study with independent blinded angiographic grading.

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Section: Discussionmentioning

confidence: 99%

An update to the Raymond–Roy Occlusion Classification of intracranial aneurysms treated with coil embolization

Mascitelli

Moyle

Oermann

et al. 2014

J NeuroIntervent Surg

260

157

View full text Add to dashboard Cite

show abstract

“…Alternatively, the prothrombotic environment of the coil mass may be less effective at precipitating thrombus formation when there is residual aneurysm filling between the coil mass and aneurysm wall. In addition, with a IIIb closure, there remains a portion of the aneurysm sac which may be subject to high hemodynamic forces as a result of a persistent aneurysm inflow jet 20 21. The presence of this physical space between the coil mass and aneurysm wall may allow for coil compaction and aneurysm regrowth over time, increasing the risk of aneurysm recanalization, rupture, and the need for retreatment.…”

Section: Discussionmentioning

confidence: 99%

Validation of the Modified Raymond–Roy classification for intracranial aneurysms treated with coil embolization

Stapleton

Torok

Rabinov

et al. 2015

J NeuroIntervent Surg

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“…32 Recent reports have suggested that the enlargement of the aneurysmal dome and the deformation of the coil mass are the main causes for the recanalization of coiled aneurysms. 33,34 Therefore, it needs to be recognized that ethnicity might play a role in the recanalization rate.…”

Section: Strokementioning

confidence: 99%

Blood Flow Into Basilar Tip Aneurysms

Sugiyama

Niizuma

Sato

et al. 2016

Stroke

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We retrospectively investigated the clinical and radiological data from 111 consecutive patients who underwent endovascular treatment Background and Purpose-Hemodynamic forces may play a role in the recanalization of coiled aneurysms. The purpose of this study was to investigate the influence of presurgical hemodynamics on the efficacy of coil embolization for basilar tip aneurysms. Methods-We identified 82 patients who underwent endovascular coil embolization for basilar tip aneurysms with a followup of >1 year. Presurgical hemodynamics were investigated using computational fluid dynamics with 3-dimensional data derived from rotational angiography. During postprocessing, we quantified the rate of net flow entering the aneurysm through its neck and calculated the proportion of the aneurysmal inflow rate to the basilar artery flow rate. In addition, we investigated the correlation between the basilar bifurcation configuration and the hemodynamics. Results-Twenty-five of the 82 patients were excluded because of difficult vascular geometry reconstruction. Among the 57 examined patients, angiographic recanalization was observed in 19 patients (33.3%). The proportion of the aneurysmal inflow rate to the basilar artery flow rate and a coil packing density <30% were independent and significant predictors for the recanalization of coiled aneurysms. Additional investigation revealed that a small branch angle formed by the basilar artery and the posterior cerebral artery increased blood flow into the aneurysm. Conclusions-The proportion of the aneurysmal inflow rate to the basilar artery flow rate, influenced by the basilar bifurcation configuration, was an independent and significant predictor for recanalization after coil embolization in basilar tip aneurysms.

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Are Coil Compaction and Aneurysmal Growth Two Distinct Etiologies Leading to Recurrence Following Endovascular Treatment of Intracranial Aneurysm?

Abstract: This is one of the first studies to differentiate coil compaction and aneurysm growth as distinct etiologies for aneurysm recurrence.

Cited by 38 publications

References 20 publications

An update to the Raymond–Roy Occlusion Classification of intracranial aneurysms treated with coil embolization

An update to the Raymond–Roy Occlusion Classification of intracranial aneurysms treated with coil embolization

Validation of the Modified Raymond–Roy classification for intracranial aneurysms treated with coil embolization

Blood Flow Into Basilar Tip Aneurysms

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