Stroke Intervention Catheter-Based Therapy for Acute Ischemic Stroke

Department of Cardiovascular Diseases, The John Ochsner Heart and Vascular Institute, Ochsner Clinic Foundation, New Orleans, Louisiana 70121, USA.
Journal of the American College of Cardiology (Impact Factor: 16.5). 07/2011; 58(2):101-16. DOI: 10.1016/j.jacc.2011.02.049
Source: PubMed


The majority (>80%) of the three-quarters of a million strokes that will occur in the United States this year are ischemic in nature. The treatment of acute ischemic stroke is very similar to acute myocardial infarction, which requires timely reperfusion therapy for optimal results. The majority of patients with acute ischemic stroke do not receive any form of reperfusion therapy, unlike patients with acute myocardial infarction. Improving outcomes for acute stroke will require patient education to encourage early presentation, an aggressive expansion of qualified hospitals, and willing providers and early imaging strategies to match patients with their best options for reperfusion therapy to minimize complications.

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Available from: Christopher J White, May 30, 2015
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    • "Solitaire® or Trevo®) are something between a tiny self-expanding stent and a soft ‘spider-web-like’ basket for clot removal, and the risks of complications with this latest generation stent retrievers are much smaller, whereas their success rates are higher. Detailed information about CBT was published in the JACC white paper.44 "
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    ABSTRACT: The evolution of reperfusion therapy in acute myocardial infarction and acute ischaemic stroke has many similarities: thrombolysis is superior to placebo, intra-arterial thrombolysis is not superior to intravenous (i.v.), facilitated intervention is of questionable value, and direct mechanical recanalization without thrombolysis is proven (myocardial infarction) or promising (stroke) to be superior to thrombolysis-but only when started with no or minimal delay. However, there are also substantial differences. Direct catheter-based thrombectomy in acute ischaemic stroke is more difficult than primary angioplasty (in ST-elevation myocardial infarction [STEMI]) in many ways: complex pre-intervention diagnostic workup, shorter time window for clinically effective reperfusion, need for an emergent multidisciplinary approach from the first medical contact, vessel tortuosity, vessel fragility, no evidence available about dosage and combination of peri-procedural antithrombotic drugs, risk of intracranial bleeding, unclear respective roles of thrombolysis and mechanical intervention, lower number of suitable patients, and thus longer learning curves of the staff. Thus, starting acute stroke interventional programme requires a lot of learning, discipline, and humility. Randomized trials comparing different reperfusion strategies provided similar results in acute ischaemic stroke as in STEMI. Thus, it might be expected that also a future randomized trial comparing direct (primary) catheter-based thrombectomy vs. i.v. thrombolysis could show superiority of the mechanical intervention if it would be initiated without delay. Such randomized trial is needed to define the role of mechanical intervention alone in acute stroke treatment.
    European Heart Journal 10/2013; 35(3). DOI:10.1093/eurheartj/eht409 · 15.20 Impact Factor
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    • "Along with other clinical examinations, NIHSS has been used to determine which stroke patients benefit the most from therapeutic options such as thrombolysis. Review of previous studies shows that patients with NIHSS values lower than 4 may not be considered as a candidate for reperfusion therapy [20] [21]. Further, recovery of patients' symptoms after thrombolysis is related to the level of NIHSS on admission [22] [23]. "
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    ABSTRACT: Objectives: The aim of the current study was to design a new simpler form of National Institutes of Health Stroke Scale (NIHSS) for use in emergency settings, and compare its predictive ability with original NIHSS score for mortality. Methods: A total of 152 consecutive patients with first ever ischemic stroke admitted to a university affiliated hospital were recruited. NIHSS score on admission was estimated and the predictive ability of NIHSS items for mortality at 28 days was evaluated by logistic regression. Stepwise discriminant analysis was performed on NIHSS items to obtain a discriminant function with the best discriminative ability for mortality. Further, receiver operating characteristics (ROC) curves were depicted to compare the new determined discriminant function with the original NIHSS score. Results: Cumulative rate of mortality was 11.8% for 28-day follow-up period. Among NIHSS items, scores of visual field, limb ataxia and extinction neglect were not associated with mortality (P>0.05). On the contrary, level of consciousness-commands, language and gaze were determined as independent indicators of mortality (P<0.05), and their coefficients on discriminant function were equal to 0.65, 0.44 and 0.30, respectively. In addition, area under the ROC curve of the calculated discriminant function was not statistically different from NIHSS score (P>0.05). Conclusions: The suggested discriminant function, comprising NIHSS items of level of consciousness-commands, language and gaze, can predict 28-day mortality after ischemic stroke in a similar way to the original NIHSS score and can provide a baseline for stroke severity in emergency settings.
    Clinical neurology and neurosurgery 12/2012; 115(7). DOI:10.1016/j.clineuro.2012.10.034 · 1.13 Impact Factor
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    Journal of the American College of Cardiology 11/2011; 58(23):2370-1. DOI:10.1016/j.jacc.2011.08.043 · 16.50 Impact Factor
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