Effect of Time to Reperfusion on Clinical Outcome of Anterior Circulation Strokes Treated With Thrombectomy Pooled Analysis of the MERCI and Multi MERCI Trials

被引:43
作者
Nogueira, Raul G. [1 ,2 ,3 ]
Smith, Wade S. [4 ]
Sung, Gene [5 ]
Duckwiler, Gary [6 ]
Walker, Gary [7 ]
Roberts, Robin [8 ]
Saver, Jeffrey L. [9 ]
Liebeskind, David S. [9 ]
机构
[1] Emory Univ, Sch Med, Grady Mem Hosp, Marcus Stroke & Neurosci Ctr,Dept Neurol, Atlanta, GA USA
[2] Emory Univ, Sch Med, Grady Mem Hosp, Marcus Stroke & Neurosci Ctr,Dept Neurosurg, Atlanta, GA USA
[3] Emory Univ, Sch Med, Grady Mem Hosp, Marcus Stroke & Neurosci Ctr,Dept Radiol, Atlanta, GA USA
[4] Univ Calif San Francisco, Dept Neurol, San Francisco, CA USA
[5] Univ So Calif, Dept Neurol, Los Angeles, CA USA
[6] Univ Calif Los Angeles, Dept Intervent Neuroradiol, Los Angeles, CA USA
[7] Concentric Med Inc, Div Clin Res, Mountain View, CA USA
[8] McMaster Univ, Dept Clin Epidemiol & Biostat, Hamilton, ON, Canada
[9] Univ Calif Los Angeles, Dept Neurol, Los Angeles, CA 90024 USA
关键词
stroke outcomes; thrombectomy; ACUTE ISCHEMIC-STROKE; INTRAARTERIAL THROMBOLYSIS; NINDS; HYPERGLYCEMIA; ASSOCIATION; ALTEPLASE; ATLANTIS; ECASS;
D O I
10.1161/STROKEAHA.111.624163
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Background and Purpose-Previous studies have demonstrated a strong correlation between treatment time and outcomes after intravenous recombinant tissue-type plasminogen activator. However, the temporal profile of ischemia may vary according to the level of occlusion, and it is likely that more proximal occlusions have a more variable temporal course than their distal counterparts. We sought to establish how time influences outcomes in anterior circulation proximal arterial occlusions. Methods-All patients from the MERCI/Multi MERCI trials with intracranial internal carotid artery and/or middle cerebral artery (M1-M2 segments) occlusions who were successfully revascularized were included in univariate/multivariate analyses to define the predictors of independent functional outcomes (modified Rankin Scale score <= 2) and mortality at 90 days. The effect of time to reperfusion on outcomes was calculated after adjustment for age, baseline National Institutes of Health Stroke Scale, and glucose levels. Results-A total of 175 patients presenting with internal carotid artery/M1/M2 occlusions were revascularized. There was no definite association between time (to treatment or reperfusion) and outcomes in the unadjusted analysis. Baseline National Institutes of Health Stroke Scale score and age were independent predictors of independent outcome and mortality. High glucose demonstrated a strong trend toward worse outcomes. After adjustment for age, baseline National Institutes of Health Stroke Scale score, and glucose, there was a strong trend toward fewer independent outcomes with later reperfusion times. Notably, 40% of the patients reperfused at >= 6.9 hours achieved independent functional outcomes. Conclusions-Time (to treatment or reperfusion) is only one of the many variables that may impact outcome in proximal arterial occlusions strokes. Reperfusion therapies should be started promptly, but our findings also suggest that stroke patients presenting at later time points may still benefit. (Stroke. 2011;42:3144-3149.)
引用
收藏
页码:3144 / 3149
页数:6
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