Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association
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J Stroke Cerebrovasc Dis · Feb 2014
Case ReportsPostoperative brain stroke after shoulder arthroscopy in the lateral decubitus position.
The beach chair position is used frequently for shoulder arthroscopy surgery. However, the beach chair position has been reported to be linked to postoperative cerebral stroke. ⋯ The patient experienced a brief period of intraoperative hypotension. Physicians should be aware of this potential complication that could be irrelevant to the position used.
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J Stroke Cerebrovasc Dis · Feb 2014
Case Reports5-fluorouracil-induced leukoencephalopathy with acute stroke-like presentation fulfilling criteria for recombinant tissue plasminogen activator therapy.
A 61-year-old man underwent systemic chemotherapy with intravenous infusion of nedaplatin and 5-fluorouracil. On the day after the final drug administration, he suddenly experienced difficulty in speaking followed by left-sided weakness. His National Institutes of Health Stroke Scale score was 12. ⋯ An initial magnetic resonance imaging scan of his brain revealed a hyperintense area in the bilateral white matter and corpus callosum, and these abnormalities had improved on the follow-up scan. We diagnosed him with 5-fluorouracil-induced leukoencephalopathy with acute stroke-like presentation. Our experience suggests that 5-fluorouracil-induced leukoencephalopathy potentially fulfills all eligibility criteria for recombinant tissue plasminogen activator therapy.
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Many conditions called "stroke mimics" may resemble acute stroke. The converse of the "stroke mimic" is a presentation suggestive of another condition, which actually represents stroke. These would be "stroke chameleons." The recognition of a chameleon as stroke has implications for therapy and quality of care. ⋯ Stroke chameleons may result in patients not receiving appropriate care. The largest proportions of chameleons were AMS, syncope, hypertensive emergency, systemic infection, and suspected ACS. Patients diagnosed with hypertensive emergency or AMS had an 8% and 7% chance of having an acute stroke. Physicians should consider stroke in patients with these diagnoses with a lower threshold to obtain neuroimaging with subsequent appropriate management.
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J Stroke Cerebrovasc Dis · Jan 2014
Clinical use of computed tomographic perfusion for the diagnosis and prediction of lesion growth in acute ischemic stroke.
Computed tomography perfusion (CTP) mapping in research centers correlates well with diffusion-weighted imaging (DWI) lesions and may accurately differentiate the infarct core from ischemic penumbra. The value of CTP in real-world clinical practice has not been fully established. We investigated the yield of CTP-derived cerebral blood volume (CBV) and mean transient time (MTT) for the detection of cerebral ischemia and ischemic penumbra in a sample of acute ischemic stroke (AIS) patients. ⋯ In real-world use, acute imaging with CTP did not predict stroke or DWI lesions with sufficient accuracy. Our findings argue against the use of CTP for screening AIS patients until real-world implementations match the accuracy reported from specialized research centers.
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J Stroke Cerebrovasc Dis · Jan 2014
Early neurologic improvement based on the National Institutes of Health Stroke Scale score predicts favorable outcome within 30 minutes after undergoing intravenous recombinant tissue plasminogen activator therapy.
The aim of the present study was to evaluate whether early neurologic improvement (within 30 minutes), as measured using the National Institutes of Health Stroke Scale (NIHSS) score, predicts favorable outcome at 90 days. ⋯ An improvement of at least 3 points in the NIHSS score at 15 minutes or of at least 5 points at 30 minutes appears to be a predictor of favorable outcome and helps to identify patients who will not respond to rt-PA therapy.