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type=\u0022text\/css\u0022 rel=\u0022stylesheet\u0022 href=\u0022\/\/d282kpwvnogo5m.cloudfront.net\/sites\/default\/files\/cdn\/css\/http\/css_Xg7z6oCTVgud_Q0huYz9x9iiD5H_2YPSJ5z2ZViSWdY.css\u0022 media=\u0022all\u0022 \/\u003E\n\u003Clink rel=\u0027stylesheet\u0027 type=\u0027text\/css\u0027 href=\u0027\/sites\/all\/modules\/contrib\/panels\/plugins\/layouts\/onecol\/onecol.css\u0027 \/\u003E\u003C\/head\u003E\u003Cbody\u003E\u003Cdiv class=\u0022panels-ajax-tab-panel panels-ajax-tab-panel-sageoa-tab-art\u0022\u003E\u003Cdiv class=\u0022panel-display panel-1col clearfix\u0022 \u003E\n  \u003Cdiv class=\u0022panel-panel panel-col\u0022\u003E\n    \u003Cdiv\u003E\u003Cdiv class=\u0022panel-pane pane-highwire-markup\u0022 \u003E\n  \n      \n  \n  \u003Cdiv class=\u0022pane-content\u0022\u003E\n    \u003Cdiv class=\u0022highwire-markup\u0022\u003E\u003Cdiv xmlns=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022 id=\u0022content-block-markup\u0022 xmlns:xhtml=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022\u003E\u003Cdiv class=\u0022article fulltext-view \u0022\u003E\u003Cspan class=\u0022highwire-journal-article-marker-start\u0022\u003E\u003C\/span\u003E\u003Cdiv class=\u0022section abstract\u0022 id=\u0022abstract-1\u0022\u003E\u003Ch2\u003ESummary\u003C\/h2\u003E\n            \u003Cp id=\u0022p-1\u0022\u003EExperimental data suggest that the novel Trevo device is highly effective at achieving immediate reperfusion of occluded arteries without causing any clinically significant disruption of vascular integrity [Nogueira RG et al. \u003Cem\u003EJ Neurointerv Surg\u003C\/em\u003E 2011]. This article also reports on the promising findings from the Phase 4 Thrombectomy REvascularization of Large Vessel Occlusions in Acute Ischemic Stroke trial [TREVO; \u003Ca class=\u0022external-ref external-ref-type-clintrialgov\u0022 href=\u0022\/lookup\/external-ref?link_type=CLINTRIALGOV\u0026amp;access_num=NCT01088672\u0026amp;atom=%2Fspmdc%2F12%2F1%2F15.atom\u0022\u003ENCT01088672\u003C\/a\u003E].\u003C\/p\u003E\n         \u003C\/div\u003E\u003Cul class=\u0022kwd-group\u0022\u003E\u003Cli class=\u0022kwd\u0022\u003EValvular Disease\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EInterventional Techniques \u0026amp; Devices Clinical Trials\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ECerebrovascular Disease\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003EIschemia\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003ECerebrovascular Disease\u003C\/li\u003E\u003C\/ul\u003E\u003Cp id=\u0022p-2\u0022\u003EExperimental data suggest that the novel Trevo device is highly effective at achieving immediate reperfusion of occluded arteries without causing any clinically significant disruption of vascular integrity [Nogueira RG et al. \u003Cem\u003EJ Neurointerv Surg\u003C\/em\u003E 2011]. Nils Wahlgren, MD, PhD, Karolinska Institutet, Stockholm, Sweden, also reported promising findings from the Phase 4 Thrombectomy REvascularization of Large Vessel Occlusions in Acute Ischemic Stroke trial [TREVO; \u003Ca class=\u0022external-ref external-ref-type-clintrialgov\u0022 href=\u0022\/lookup\/external-ref?link_type=CLINTRIALGOV\u0026amp;access_num=NCT01088672\u0026amp;atom=%2Fspmdc%2F12%2F1%2F15.atom\u0022\u003ENCT01088672\u003C\/a\u003E].\u003C\/p\u003E\u003Cp id=\u0022p-3\u0022\u003EThis multicenter, international, prospective, single-arm clinical trial included 60 patients at 7 sites in Germany, Spain, Austria, and Sweden. The procedure employs a microcatheter that is placed distal to the thrombus to deliver the Trevo device, which is deployed by unsheathing the microcatheter and allowing clot integration into the device. The Trevo is then retrieved into a proximally placed catheter.\u003C\/p\u003E\u003Cp id=\u0022p-4\u0022\u003EThe purpose of the study was to determine the revascularization rate of the Trevo system in large-vessel occlusions in ischemic stroke patients. The primary endpoint was revascularization, defined as at least thrombolysis in cerebral infarction (TICI) score 2a. Secondary endpoints included modified Rankin scale (mRS) clinical outcomes at 90 days; mortality at 90 days; device-related serious adverse events, as determined by an independent clinical events committee; and symptomatic intracranial hemorrhage (sICH) rate within 24 hours according to Safe Implementation of Thrombolysis in Stroke-Monitoring Study (SITS-MOST) criteria, as determined by an independent core lab [Wahlgren N et al. \u003Cem\u003ELancet\u003C\/em\u003E 2007]. Neuroimaging (CT or MR) was required at 24 hours. Clinical evaluation also took place at 7 and 90 days.\u003C\/p\u003E\u003Cp id=\u0022p-5\u0022\u003EThe median patient age was 65 years, with a range from 21 to 84 years; 45% of the patients were male. Atrial fibrillation accounted for most of the strokes (41.7%), followed by unknown cause (25%), large-artery atherosclerosis (20%), other- cardioembolic (8.3%), and other (3.3%). The median National Institute of Health Stroke Score (NIHSS) was 18, with a range of 8 to 28. The majority of occlusions was located in the middle cerebral artery (70%), with 60% in M1 and 10% in M2; 21.7% were in the internal carotid artery, with 8.3% in the vertebrobasilar artery.\u003C\/p\u003E\u003Cp id=\u0022p-6\u0022\u003EMean hours from symptom onset to arterial puncture was 3.5 \u00b11.4; 46.7% of patients were treated in \u22643 hours. The majority of patients (60%) received intravenous tissue plasminogen activator (tPA) prior to the embolectomy procedure but had a persistent occlusion. Other adjuvant intraarterial pharmacological agents included intraarterial tPA (10%), IA IIb\/IIIa inhibitor (3.3%), and intraarterial vasodilator (3.3%).\u003C\/p\u003E\u003Cp id=\u0022p-7\u0022\u003ERecanalization results showed that 91.7% of patients achieved a TICI score of 2a or higher. A TICI score of 2b or higher was achieved in 78.3% of patients. Intracranial hemorrhage (ICH) occurred in 30% of patients versus sICH (according to SITS-MOST criteria) in 5%, with 1 device-related perforation and asymptomatic ICH in 25%.\u003C\/p\u003E\u003Cp id=\u0022p-8\u0022\u003EThe median NIHSS decreased 47% to 9.5 in 24 hours, 75% to 4.5 at 7 days, and 89% to 2.0 in 90 days. These decreases were mirrored in clinical improvement, as defined by a 10-point improvement in NIHSS (\u003Ca id=\u0022xref-fig-1-1\u0022 class=\u0022xref-fig\u0022 href=\u0022#F1\u0022\u003EFigure 1\u003C\/a\u003E) and mRS outcomes (\u003Ca id=\u0022xref-fig-2-1\u0022 class=\u0022xref-fig\u0022 href=\u0022#F2\u0022\u003EFigure 2\u003C\/a\u003E).\u003C\/p\u003E\u003Cdiv id=\u0022F1\u0022 class=\u0022fig pos-float  odd\u0022\u003E\u003Cdiv class=\u0022highwire-figure\u0022\u003E\u003Cdiv class=\u0022fig-inline-img-wrapper\u0022\u003E\u003Cdiv class=\u0022fig-inline-img\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/12\/1\/15\/F1.large.jpg?width=800\u0026amp;height=600\u0026amp;carousel=1\u0022 title=\u0022Clinical Improvement in NIHSS.\u0022 class=\u0022fragment-images colorbox-load\u0022 rel=\u0022gallery-fragment-images-149930688\u0022 data-figure-caption=\u0022Clinical Improvement in NIHSS.\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003E\u003Cimg class=\u0022fragment-image\u0022 alt=\u0022Figure 1.\u0022 src=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/12\/1\/15\/F1.medium.gif\u0022\/\u003E\u003C\/a\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cul class=\u0022highwire-figure-links inline\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/12\/1\/15\/F1.large.jpg?download=true\u0022 class=\u0022highwire-figure-link highwire-figure-link-download\u0022 title=\u0022Download Figure 1.\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload figure\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/12\/1\/15\/F1.large.jpg\u0022 class=\u0022highwire-figure-link highwire-figure-link-newtab\u0022 target=\u0022_blank\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EOpen in new tab\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/12714\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv class=\u0022fig-caption attrib\u0022\u003E\u003Cspan class=\u0022fig-label\u0022\u003EFigure 1.\u003C\/span\u003E \n            \u003Cp id=\u0022p-9\u0022 class=\u0022first-child\u0022\u003EClinical Improvement in NIHSS.\u003C\/p\u003E\n         \u003Cq class=\u0022attrib\u0022 id=\u0022attrib-1\u0022\u003EReproduced with permission from N. Wahlgren, MD, PhD.\u003C\/q\u003E\u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cdiv id=\u0022F2\u0022 class=\u0022fig pos-float  odd\u0022\u003E\u003Cdiv class=\u0022highwire-figure\u0022\u003E\u003Cdiv class=\u0022fig-inline-img-wrapper\u0022\u003E\u003Cdiv class=\u0022fig-inline-img\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/12\/1\/15\/F2.large.jpg?width=800\u0026amp;height=600\u0026amp;carousel=1\u0022 title=\u0022mRS Outcomes.\u0022 class=\u0022fragment-images colorbox-load\u0022 rel=\u0022gallery-fragment-images-149930688\u0022 data-figure-caption=\u0022mRS Outcomes.\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003E\u003Cimg class=\u0022fragment-image\u0022 alt=\u0022Figure 2.\u0022 src=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/12\/1\/15\/F2.medium.gif\u0022\/\u003E\u003C\/a\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cul class=\u0022highwire-figure-links inline\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/12\/1\/15\/F2.large.jpg?download=true\u0022 class=\u0022highwire-figure-link highwire-figure-link-download\u0022 title=\u0022Download Figure 2.\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload figure\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/12\/1\/15\/F2.large.jpg\u0022 class=\u0022highwire-figure-link highwire-figure-link-newtab\u0022 target=\u0022_blank\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EOpen in new tab\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/12715\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv class=\u0022fig-caption attrib\u0022\u003E\u003Cspan class=\u0022fig-label\u0022\u003EFigure 2.\u003C\/span\u003E \n            \u003Cp id=\u0022p-10\u0022 class=\u0022first-child\u0022\u003EmRS Outcomes.\u003C\/p\u003E\n         \u003Cq class=\u0022attrib\u0022 id=\u0022attrib-2\u0022\u003EReproduced with permission from N. Wahlgren, MD, PhD.\u003C\/q\u003E\u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cp id=\u0022p-11\u0022\u003EAlthough TREVO was not a randomized trial, the results are very encouraging and warrant further development.\u003C\/p\u003E\u003Cul class=\u0022copyright-statement\u0022\u003E\u003Cli class=\u0022fn\u0022 id=\u0022copyright-statement-1\u0022\u003E\u00a9 2012 MD Conference Express\u00ae\u003C\/li\u003E\u003C\/ul\u003E\u003Cspan class=\u0022highwire-journal-article-marker-end\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Cspan id=\u0022related-urls\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Ca href=\u0022http:\/\/mdc.sagepub.com\/content\/12\/1\/15.abstract\u0022 class=\u0022hw-link hw-link-article-abstract\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView Summary\u003C\/a\u003E\u003C\/div\u003E  \u003C\/div\u003E\n\n  \n  \u003C\/div\u003E\n\u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E\n\u003C\/div\u003E\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_figures.js?nzniod\u0022\u003E\u003C\/script\u003E\n\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_openurl.js?nzniod\u0022\u003E\u003C\/script\u003E\n\u003C\/body\u003E\u003C\/html\u003E"}