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<meta name="DC.Title" content="Endovascular Treatment of Intracranial Wide-Necked Aneurysms Using Three-Dimensional Coils: Predictors of Immediate Anatomic and Clinical Results" />
<meta name="DC.Date" content="2004-02-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
<meta name="DC.Rights" content="Copyright © American Society of Neuroradiology" />
<meta name="DC.AccessRights" content="restricted" />
<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Aneurysms with a wide neck constitute a persistent challenge for endovascular therapy with coils. Our purpose was to evaluate the immediate anatomic and clinical results of treating intracranial wide-necked aneurysms by using three-dimensional (3D) coils.

METHODS: During a 2-year period, 160 aneurysms (116 with a neck ≤ 4 mm, group A; 44 with a neck &gt; 4 mm, group B) in 157 patients in eight participating centers were consecutively treated. The procedure consisted first of framing the aneurysm with one or more 3D spherical coils and then filling it with helical coils. Results were evaluated with univariate analysis. Multivariate analysis was used to identify independent predictors of these results.

RESULTS: Angiographic occlusion was complete in 84 (72%) and 30 (68%) aneurysms in groups A and B, respectively. Mean percentage of volumic occlusion in these groups was 30.9% and 29.2%, respectively. Perioperative morbidity and mortality rates were 4%, respectively, in group A and 2%, respectively, in group B. No significant difference between the two groups was observed. However, percentage of volumic occlusion correlated with sac-to-neck ratio less than 1.5 ( P = .061) and with sac size ( P = .002) except when three or more 3D coils per aneurysm were used ( P = .222). The better the percentage of volumic occlusion, the better the degree of angiographic occlusion ( P = .004). Percentage of volumic occlusion was an independent predictor of angiographic complete occlusion ( P = .001). World Federation of Neurological Surgeons subarachnoid hemorrhage scale grade 5 was an independent predictor of perioperative mortality ( P = .043).

CONCLUSION: Three-dimensional coils proved to be useful for improving coil packing and angiographic and volumic occlusion of aneurysms with a neck greater than 4 mm, at the time of treatment, provided the sac-to-neck ratio was 1.5 or greater, and the largest number of 3D coils were first positioned." />
<meta name="DC.Contributor" content="Jean-Noël Vallée" />
<meta name="DC.Contributor" content="Laurent Pierot" />
<meta name="DC.Contributor" content="Alain Bonafé" />
<meta name="DC.Contributor" content="Francis Turjman" />
<meta name="DC.Contributor" content="Pierre Flandroy" />
<meta name="DC.Contributor" content="Jérôme Berge" />
<meta name="DC.Contributor" content="Georges Rodesch" />
<meta name="DC.Contributor" content="Serge Bracard" />
<meta name="article:published_time" content="2004-02-01" />
<meta name="article:section" content="INTERVENTIONAL" />
<meta name="citation_title" content="Endovascular Treatment of Intracranial Wide-Necked Aneurysms Using Three-Dimensional Coils: Predictors of Immediate Anatomic and Clinical Results" />
<meta name="citation_abstract" lang="en" content="&lt;p&gt;&lt;i&gt;BACKGROUND AND PURPOSE:&lt;/i&gt; Aneurysms with a wide neck constitute a persistent challenge for endovascular therapy with coils. Our purpose was to evaluate the immediate anatomic and clinical results of treating intracranial wide-necked aneurysms by using three-dimensional (3D) coils.&lt;/p&gt;&lt;p&gt;&lt;i&gt;METHODS:&lt;/i&gt; During a 2-year period, 160 aneurysms (116 with a neck ≤ 4 mm, group A; 44 with a neck &amp;gt; 4 mm, group B) in 157 patients in eight participating centers were consecutively treated. The procedure consisted first of framing the aneurysm with one or more 3D spherical coils and then filling it with helical coils. Results were evaluated with univariate analysis. Multivariate analysis was used to identify independent predictors of these results.&lt;/p&gt;&lt;p&gt;&lt;i&gt;RESULTS:&lt;/i&gt; Angiographic occlusion was complete in 84 (72%) and 30 (68%) aneurysms in groups A and B, respectively. Mean percentage of volumic occlusion in these groups was 30.9% and 29.2%, respectively. Perioperative morbidity and mortality rates were 4%, respectively, in group A and 2%, respectively, in group B. No significant difference between the two groups was observed. However, percentage of volumic occlusion correlated with sac-to-neck ratio less than 1.5 (&lt;i&gt;P&lt;/i&gt; = .061) and with sac size (&lt;i&gt;P&lt;/i&gt; = .002) except when three or more 3D coils per aneurysm were used (&lt;i&gt;P&lt;/i&gt; = .222). The better the percentage of volumic occlusion, the better the degree of angiographic occlusion (&lt;i&gt;P&lt;/i&gt; = .004). Percentage of volumic occlusion was an independent predictor of angiographic complete occlusion (&lt;i&gt;P&lt;/i&gt; = .001). World Federation of Neurological Surgeons subarachnoid hemorrhage scale grade 5 was an independent predictor of perioperative mortality (&lt;i&gt;P&lt;/i&gt; = .043).&lt;/p&gt;&lt;p&gt;&lt;i&gt;CONCLUSION:&lt;/i&gt; Three-dimensional coils proved to be useful for improving coil packing and angiographic and volumic occlusion of aneurysms with a neck greater than 4 mm, at the time of treatment, provided the sac-to-neck ratio was 1.5 or greater, and the largest number of 3D coils were first positioned.&lt;/p&gt;" />
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<meta name="citation_publication_date" content="2004/02/01" />
<meta name="citation_mjid" content="ajnr;25/2/298" />
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<meta name="citation_author" content="Jean-Noël Vallée" />
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<meta name="twitter:title" content="Endovascular Treatment of Intracranial Wide-Necked Aneurysms Using Three-Dimensional Coils: Predictors of Immediate Anatomic and Clinical Results" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Aneurysms with a wide neck constitute a persistent challenge for endovascular therapy with coils. Our purpose was to evaluate the immediate anatomic and clinical results of treating intracranial wide-necked aneurysms by using three-dimensional (3D) coils.

METHODS: During a 2-year period, 160 aneurysms (116 with a neck ≤ 4 mm, group A; 44 with a neck &gt; 4 mm, group B) in 157 patients in eight participating centers were consecutively treated. The procedure consisted first of framing the aneurysm with one or more 3D spherical coils and then filling it with helical coils. Results were evaluated with univariate analysis. Multivariate analysis was used to identify independent predictors of these results.

RESULTS: Angiographic occlusion was complete in 84 (72%) and 30 (68%) aneurysms in groups A and B, respectively. Mean percentage of volumic occlusion in these groups was 30.9% and 29.2%, respectively. Perioperative morbidity and mortality rates were 4%, respectively, in group A and 2%, respectively, in group B. No significant difference between the two groups was observed. However, percentage of volumic occlusion correlated with sac-to-neck ratio less than 1.5 ( P = .061) and with sac size ( P = .002) except when three or more 3D coils per aneurysm were used ( P = .222). The better the percentage of volumic occlusion, the better the degree of angiographic occlusion ( P = .004). Percentage of volumic occlusion was an independent predictor of angiographic complete occlusion ( P = .001). World Federation of Neurological Surgeons subarachnoid hemorrhage scale grade 5 was an independent predictor of perioperative mortality ( P = .043).

CONCLUSION: Three-dimensional coils proved to be useful for improving coil packing and angiographic and volumic occlusion of aneurysms with a neck greater than 4 mm, at the time of treatment, provided the sac-to-neck ratio was 1.5 or greater, and the largest number of 3D coils were first positioned." />
<meta name="og-title" property="og:title" content="Endovascular Treatment of Intracranial Wide-Necked Aneurysms Using Three-Dimensional Coils: Predictors of Immediate Anatomic and Clinical Results" />
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<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: Aneurysms with a wide neck constitute a persistent challenge for endovascular therapy with coils. Our purpose was to evaluate the immediate anatomic and clinical results of treating intracranial wide-necked aneurysms by using three-dimensional (3D) coils.

METHODS: During a 2-year period, 160 aneurysms (116 with a neck ≤ 4 mm, group A; 44 with a neck &gt; 4 mm, group B) in 157 patients in eight participating centers were consecutively treated. The procedure consisted first of framing the aneurysm with one or more 3D spherical coils and then filling it with helical coils. Results were evaluated with univariate analysis. Multivariate analysis was used to identify independent predictors of these results.

RESULTS: Angiographic occlusion was complete in 84 (72%) and 30 (68%) aneurysms in groups A and B, respectively. Mean percentage of volumic occlusion in these groups was 30.9% and 29.2%, respectively. Perioperative morbidity and mortality rates were 4%, respectively, in group A and 2%, respectively, in group B. No significant difference between the two groups was observed. However, percentage of volumic occlusion correlated with sac-to-neck ratio less than 1.5 ( P = .061) and with sac size ( P = .002) except when three or more 3D coils per aneurysm were used ( P = .222). The better the percentage of volumic occlusion, the better the degree of angiographic occlusion ( P = .004). Percentage of volumic occlusion was an independent predictor of angiographic complete occlusion ( P = .001). World Federation of Neurological Surgeons subarachnoid hemorrhage scale grade 5 was an independent predictor of perioperative mortality ( P = .043).

CONCLUSION: Three-dimensional coils proved to be useful for improving coil packing and angiographic and volumic occlusion of aneurysms with a neck greater than 4 mm, at the time of treatment, provided the sac-to-neck ratio was 1.5 or greater, and the largest number of 3D coils were first positioned." />
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      <div class="highwire-cite-overline"><span  class="highwire-cite-metadata-article-type highwire-cite-metadata">Research Article</span><span class="separator-pipe"></span><span  class="highwire-cite-metadata-art-cat highwire-cite-metadata"><span class="wrapper">INTERVENTIONAL</span></span></div>
  
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      <h1 class="highwire-cite-title" id="page-title">Endovascular Treatment of Intracranial Wide-Necked Aneurysms Using Three-Dimensional Coils: Predictors of Immediate Anatomic and Clinical Results</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">Jean-Noël Vallée</span>, <span class="highwire-citation-author" data-delta="1">Laurent Pierot</span>, <span class="highwire-citation-author" data-delta="2">Alain Bonafé</span>, <span class="highwire-citation-author" data-delta="3">Francis Turjman</span>, <span class="highwire-citation-author" data-delta="4">Pierre Flandroy</span>, <span class="highwire-citation-author" data-delta="5">Jérôme Berge</span>, <span class="highwire-citation-author" data-delta="6">Georges Rodesch</span> and <span class="highwire-citation-author" data-delta="7">Serge Bracard</span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">February 2004,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">25 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">298-306; </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-10374--6768852484" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">Jean-Noël Vallée </div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=Jean-No%C3%ABl%2BVall%C3%A9e%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Vall%C3%A9e%20J&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AJean-No%25C3%25ABl%2BVall%25C3%25A9e%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-1"><div 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      <div class="highwire-cite-title">Endovascular Treatment of Intracranial Wide-Necked Aneurysms Using Three-Dimensional Coils: Predictors of Immediate Anatomic and Clinical Results</div>  
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    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">Feb 2004, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">25 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">298-306; </span></div>
  
  
  
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