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<meta name="DC.Title" content="Simultaneous Bilateral Carotid Stenting in High-Risk Patients" />
<meta name="DC.Identifier" content="10.3174/ajnr.A1970" />
<meta name="DC.Date" content="2010-06-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
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Indicates open access to non-subscribers at www.ajnr.org" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: The safety and efficacy of SBCAS have not been evaluated in detail. The purpose of our study was to evaluate the outcome after SBCAS in high-risk patients compared with unilateral stent placement.

MATERIALS AND METHODS: Between March 2002 and October 2008, a total of 205 consecutive high-risk patients underwent CAS at our institution. Of these patients, 30 (14.6%) underwent SBCAS ( n = 24) and staged SBCAS ( n = 6). Patients who underwent unilateral CAS ( n = 175) during the same period served as controls. The stroke risk factors, procedural results, and outcome at 30 days and 6 months, as well as the restenosis rate at 6 months, were compared by using either the χ2 test or the Kruskal-Wallis equality-of-populations rank test.

RESULTS: Our data revealed no significant differences in the stroke risk factors between the SBCAS and the control group. HPS occurred more commonly in SBCAS (ie, 16.7%, 4/24) compared with 2.9% (5/175) in the control group ( P = .014). However, there was no statistical significance between 2 groups in the event rate of stroke (minor and/or major stroke), death, or restenosis at 6 months.

CONCLUSIONS: There was no significant difference in outcome at 6 months following stent placement between SBCAS and unilateral CAS in the high-risk patient group, even though HPS occurred more commonly after SBCAS.

BP
:   blood pressure
CAS
:   carotid artery stent placement
CEA
:   carotid endarterectomy
CCS
:   Canadian Cardiovascular Society
FEV
:   forced expiratory volume
HD
:   hemodynamic depression
HPS
:   hyperperfusion syndrome
mRS
:   modified Rankin scale
NASCET
:   North American Symptomatic Carotid Endarterectomy Trial
NIHSS
:   National Institutes of Health Stroke Scale
NYHA
:   New York Heart Association
SBCAS
:   simultaneous bilateral carotid artery stent placement
TIA
:   transient ischemic attack" />
<meta name="DC.Contributor" content="S. Liu" />
<meta name="DC.Contributor" content="J.H. Jung" />
<meta name="DC.Contributor" content="S.-M. Kim" />
<meta name="DC.Contributor" content="H.-K. Lim" />
<meta name="DC.Contributor" content="H.-j. Kwon" />
<meta name="DC.Contributor" content="J.K. Kim" />
<meta name="DC.Contributor" content="J.S. Kim" />
<meta name="DC.Contributor" content="D.C. Suh" />
<meta name="article:published_time" content="2010-06-01" />
<meta name="article:section" content="Interventional" />
<meta name="citation_title" content="Simultaneous Bilateral Carotid Stenting in High-Risk Patients" />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;BACKGROUND AND PURPOSE:&lt;/h3&gt;
&lt;p&gt;The safety and efficacy of SBCAS have not been evaluated in detail. The purpose of our study was to evaluate the outcome after SBCAS in high-risk patients compared with unilateral stent placement.&lt;/p&gt;&lt;h3&gt;MATERIALS AND METHODS:&lt;/h3&gt;
&lt;p&gt;Between March 2002 and October 2008, a total of 205 consecutive high-risk patients underwent CAS at our institution. Of these patients, 30 (14.6%) underwent SBCAS (&lt;i&gt;n&lt;/i&gt; = 24) and staged SBCAS (&lt;i&gt;n&lt;/i&gt; = 6). Patients who underwent unilateral CAS (&lt;i&gt;n&lt;/i&gt; = 175) during the same period served as controls. The stroke risk factors, procedural results, and outcome at 30 days and 6 months, as well as the restenosis rate at 6 months, were compared by using either the χ&lt;sup&gt;2&lt;/sup&gt; test or the Kruskal-Wallis equality-of-populations rank test.&lt;/p&gt;&lt;h3&gt;RESULTS:&lt;/h3&gt;
&lt;p&gt;Our data revealed no significant differences in the stroke risk factors between the SBCAS and the control group. HPS occurred more commonly in SBCAS (ie, 16.7%, 4/24) compared with 2.9% (5/175) in the control group (&lt;i&gt;P&lt;/i&gt; = .014). However, there was no statistical significance between 2 groups in the event rate of stroke (minor and/or major stroke), death, or restenosis at 6 months.&lt;/p&gt;&lt;h3&gt;CONCLUSIONS:&lt;/h3&gt;
&lt;p&gt;There was no significant difference in outcome at 6 months following stent placement between SBCAS and unilateral CAS in the high-risk patient group, even though HPS occurred more commonly after SBCAS.&lt;/p&gt;" />
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<meta name="twitter:title" content="Simultaneous Bilateral Carotid Stenting in High-Risk Patients" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: The safety and efficacy of SBCAS have not been evaluated in detail. The purpose of our study was to evaluate the outcome after SBCAS in high-risk patients compared with unilateral stent placement.

MATERIALS AND METHODS: Between March 2002 and October 2008, a total of 205 consecutive high-risk patients underwent CAS at our institution. Of these patients, 30 (14.6%) underwent SBCAS ( n = 24) and staged SBCAS ( n = 6). Patients who underwent unilateral CAS ( n = 175) during the same period served as controls. The stroke risk factors, procedural results, and outcome at 30 days and 6 months, as well as the restenosis rate at 6 months, were compared by using either the χ2 test or the Kruskal-Wallis equality-of-populations rank test.

RESULTS: Our data revealed no significant differences in the stroke risk factors between the SBCAS and the control group. HPS occurred more commonly in SBCAS (ie, 16.7%, 4/24) compared with 2.9% (5/175) in the control group ( P = .014). However, there was no statistical significance between 2 groups in the event rate of stroke (minor and/or major stroke), death, or restenosis at 6 months.

CONCLUSIONS: There was no significant difference in outcome at 6 months following stent placement between SBCAS and unilateral CAS in the high-risk patient group, even though HPS occurred more commonly after SBCAS.

BP
:   blood pressure
CAS
:   carotid artery stent placement
CEA
:   carotid endarterectomy
CCS
:   Canadian Cardiovascular Society
FEV
:   forced expiratory volume
HD
:   hemodynamic depression
HPS
:   hyperperfusion syndrome
mRS
:   modified Rankin scale
NASCET
:   North American Symptomatic Carotid Endarterectomy Trial
NIHSS
:   National Institutes of Health Stroke Scale
NYHA
:   New York Heart Association
SBCAS
:   simultaneous bilateral carotid artery stent placement
TIA
:   transient ischemic attack" />
<meta name="og-title" property="og:title" content="Simultaneous Bilateral Carotid Stenting in High-Risk Patients" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/31/6/1113" />
<meta name="og-site-name" property="og:site_name" content="American Journal of Neuroradiology" />
<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: The safety and efficacy of SBCAS have not been evaluated in detail. The purpose of our study was to evaluate the outcome after SBCAS in high-risk patients compared with unilateral stent placement.

MATERIALS AND METHODS: Between March 2002 and October 2008, a total of 205 consecutive high-risk patients underwent CAS at our institution. Of these patients, 30 (14.6%) underwent SBCAS ( n = 24) and staged SBCAS ( n = 6). Patients who underwent unilateral CAS ( n = 175) during the same period served as controls. The stroke risk factors, procedural results, and outcome at 30 days and 6 months, as well as the restenosis rate at 6 months, were compared by using either the χ2 test or the Kruskal-Wallis equality-of-populations rank test.

RESULTS: Our data revealed no significant differences in the stroke risk factors between the SBCAS and the control group. HPS occurred more commonly in SBCAS (ie, 16.7%, 4/24) compared with 2.9% (5/175) in the control group ( P = .014). However, there was no statistical significance between 2 groups in the event rate of stroke (minor and/or major stroke), death, or restenosis at 6 months.

CONCLUSIONS: There was no significant difference in outcome at 6 months following stent placement between SBCAS and unilateral CAS in the high-risk patient group, even though HPS occurred more commonly after SBCAS.

BP
:   blood pressure
CAS
:   carotid artery stent placement
CEA
:   carotid endarterectomy
CCS
:   Canadian Cardiovascular Society
FEV
:   forced expiratory volume
HD
:   hemodynamic depression
HPS
:   hyperperfusion syndrome
mRS
:   modified Rankin scale
NASCET
:   North American Symptomatic Carotid Endarterectomy Trial
NIHSS
:   National Institutes of Health Stroke Scale
NYHA
:   New York Heart Association
SBCAS
:   simultaneous bilateral carotid artery stent placement
TIA
:   transient ischemic attack" />
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      <h1 class="highwire-cite-title" id="page-title">Simultaneous Bilateral Carotid Stenting in High-Risk Patients</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">S. Liu</span>, <span class="highwire-citation-author" data-delta="1">J.H. Jung</span>, <span class="highwire-citation-author" data-delta="2">S.-M. Kim</span>, <span class="highwire-citation-author" data-delta="3">H.-K. Lim</span>, <span class="highwire-citation-author" data-delta="4">H.-j. Kwon</span>, <span class="highwire-citation-author" data-delta="5">J.K. Kim</span>, <span class="highwire-citation-author" data-delta="6">J.S. Kim</span> and <span class="highwire-citation-author" data-delta="7">D.C. Suh</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">June 2010,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">31 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(6) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1113-1117; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A1970 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-9911--61726718856" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">S. Liu </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=S.%2BLiu%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=Liu%20S&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%3AS.%2BLiu%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 class="author-tooltip-name">J.H. 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<p id="p-4"><strong>BACKGROUND AND PURPOSE:</strong> The safety and efficacy of SBCAS have not been evaluated in detail. The purpose of our study was to evaluate the outcome after SBCAS in high-risk patients compared with unilateral stent placement.</p>
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<p id="p-5"><strong>MATERIALS AND METHODS:</strong> Between March 2002 and October 2008, a total of 205 consecutive high-risk patients underwent CAS at our institution. Of these patients, 30 (14.6%) underwent SBCAS (<em>n</em> = 24) and staged SBCAS (<em>n</em> = 6). Patients who underwent unilateral CAS (<em>n</em> = 175) during the same period served as controls. The stroke risk factors, procedural results, and outcome at 30 days and 6 months, as well as the restenosis rate at 6 months, were compared by using either the χ<sup>2</sup> test or the Kruskal-Wallis equality-of-populations rank test.</p>
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<p id="p-6"><strong>RESULTS:</strong> Our data revealed no significant differences in the stroke risk factors between the SBCAS and the control group. HPS occurred more commonly in SBCAS (ie, 16.7%, 4/24) compared with 2.9% (5/175) in the control group (<em>P</em> = .014). However, there was no statistical significance between 2 groups in the event rate of stroke (minor and/or major stroke), death, or restenosis at 6 months.</p>
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<p id="p-7"><strong>CONCLUSIONS:</strong> There was no significant difference in outcome at 6 months following stent placement between SBCAS and unilateral CAS in the high-risk patient group, even though HPS occurred more commonly after SBCAS.</p>
</div></div><div class="section glossary" id="glossary-1"><h2>Abbreviations</h2><dl id="def-list-1"><dt id="def-item-1">BP<span class="def-item-dt-sep"></span></dt><dd>blood pressure<span class="def-item-dd-sep"></span></dd><dt id="def-item-2">CAS<span class="def-item-dt-sep"></span></dt><dd>carotid artery stent placement<span class="def-item-dd-sep"></span></dd><dt id="def-item-3">CEA<span class="def-item-dt-sep"></span></dt><dd>carotid endarterectomy<span class="def-item-dd-sep"></span></dd><dt id="def-item-4">CCS<span class="def-item-dt-sep"></span></dt><dd>Canadian Cardiovascular Society<span class="def-item-dd-sep"></span></dd><dt id="def-item-5">FEV<span class="def-item-dt-sep"></span></dt><dd>forced expiratory volume<span class="def-item-dd-sep"></span></dd><dt id="def-item-6">HD<span class="def-item-dt-sep"></span></dt><dd>hemodynamic depression<span class="def-item-dd-sep"></span></dd><dt id="def-item-7">HPS<span class="def-item-dt-sep"></span></dt><dd>hyperperfusion syndrome<span class="def-item-dd-sep"></span></dd><dt id="def-item-8">mRS<span class="def-item-dt-sep"></span></dt><dd>modified Rankin scale<span class="def-item-dd-sep"></span></dd><dt id="def-item-9">NASCET<span class="def-item-dt-sep"></span></dt><dd>North American Symptomatic Carotid Endarterectomy Trial<span class="def-item-dd-sep"></span></dd><dt id="def-item-10">NIHSS<span class="def-item-dt-sep"></span></dt><dd>National Institutes of Health Stroke Scale<span class="def-item-dd-sep"></span></dd><dt id="def-item-11">NYHA<span class="def-item-dt-sep"></span></dt><dd>New York Heart Association<span class="def-item-dd-sep"></span></dd><dt id="def-item-12">SBCAS<span class="def-item-dt-sep"></span></dt><dd>simultaneous bilateral carotid artery stent placement<span class="def-item-dd-sep"></span></dd><dt id="def-item-13">TIA<span class="def-item-dt-sep"></span></dt><dd>transient ischemic attack</dd></dl></div><ul class="copyright-statement"><li class="fn" id="copyright-statement-1">Copyright © American Society of Neuroradiology</li></ul><div class="license" id="license-1"><p id="p-3">Indicates open access to non-subscribers at <a href="http://www.ajnr.org">www.ajnr.org</a></p></div><span class="highwire-journal-article-marker-end"></span></div><span class="related-urls"></span></div><a href="http://ajnr-stage2.stage.highwire.org/content/31/6/1113.full" class="hw-link hw-link-article-full-text" data-icon-position="" data-hide-link-title="0">View Full Text</a></div>  </div>

  
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      <div class="highwire-cite-title">Simultaneous Bilateral Carotid Stenting in High-Risk Patients</div>  
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    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-oa-ind highwire-cite-metadata"><i class="highwire-oa-indicator"></i> </span><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">Jun 2010, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">31 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(6) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1113-1117; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A1970 </span></div>
  
  
  
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      <div class="highwire-cite-title">Simultaneous Bilateral Carotid Stenting in High-Risk Patients</div>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">S.</span> <span class="nlm-surname">Liu</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J.H.</span> <span class="nlm-surname">Jung</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">S.-M.</span> <span class="nlm-surname">Kim</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">H.-K.</span> <span class="nlm-surname">Lim</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">H.-j.</span> <span class="nlm-surname">Kwon</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">J.K.</span> <span class="nlm-surname">Kim</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">J.S.</span> <span class="nlm-surname">Kim</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">D.C.</span> <span class="nlm-surname">Suh</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-oa-ind highwire-cite-metadata"><i class="highwire-oa-indicator"></i> </span><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">Jun 2010, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">31 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(6) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1113-1117; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A1970 </span></div>
  
  
  
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