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Neurological Instability in Ischemic Stroke: Relation with Outcome, Latency Time, and Molecular Markers
AbstractThe National Institutes of Health Stroke Scale (NIHSS) is commonly used to evaluate stroke neurological deficits and to predict the patient ’s outcome. Neurological instability (NI), defined as the variation of the NIHSS in the first 48 h, is a simple clinical metric that reflects dynamic changes in the area of the brain affected by the ischemia. We hypothesize that NI may represent areas of cerebral instability known as penumbra, wh ich could expand or reduce brain injury and its associated neurological sequels. In this work, our aim was to analyze the association of NI with the functional outcome at 3 months ...
Source: Translational Stroke Research - June 24, 2021 Category: Neurology Source Type: research

A New Angiographic Collateral Grading System for Acute Basilar Artery Occlusion Treated with Endovascular Therapy
AbstractPoor clinical outcomes despite endovascular therapy (EVT) are common in patients with acute basilar artery occlusion (BAO). We aimed to develop a new angiographic collateral grading system for predicting 90-day functional outcomes of acute BAO after EVT. A prospectively registered consecutive cohort of acute BAO patients treated with EVT in our center during a 6-year period was reviewed. The angiographic collateral grading system for BAO (ACGS-BAO) included 4 grades for poor (grade 1 –2), intermediate (grade 3), and good (grade 4) collateral statuses. First, the independent association of ACGS-BAO with 90-day fun...
Source: Translational Stroke Research - June 18, 2021 Category: Neurology Source Type: research

Plasma Neurofilament Light Chain Is Associated with Poor Functional Outcome and Mortality Rate After Spontaneous Subarachnoid Hemorrhage
AbstractThe initial clinical status after subarachnoid hemorrhage (SAH) is an important outcome predictor, but the mechanisms behind the early brain injury (EBI) remains incompletely understood. Elevated neurofilament levels in the cerebrospinal fluid at protracted stages after SAH are associated with poor outcome, but the potential association between plasma neurofilament (pNfL) levels during EBI, disease severity on admission, and poor outcome remains unaddressed. Plasma NfL (pNfL) was measured by single molecule array in 44 SAH patients on admission and 24  h after ictus, as well as in 44 controls. Disease severity on ...
Source: Translational Stroke Research - December 4, 2019 Category: Neurology Source Type: research

Factors Mediating Outcome After Stroke: Gender, Thrombolysis, and Their Interaction
AbstractSeveral studies, but not all, have shown that women benefit more from intravenous thrombolysis than men; few have accounted for pre-stroke mobility. Our aim was to determine whether there was an interaction between gender and thrombolysis treatment in 3-month modified Rankin Scale (mRS) score, after adjusting for pre-stroke mobility. We retrospectively reviewed medical records of 1390 consecutive ischemic stroke patients admitted between October 2012 and July 2015. The 3-month mRS was obtained from clinic visits. Thrombolysis-by-gender interaction was evaluated in univariate and multivariate analyses using ordinal ...
Source: Translational Stroke Research - October 24, 2017 Category: Neurology Source Type: research

Association between Leukoaraiosis and Poor Outcome is not due to Reperfusion Inefficiency after Intravenous Thrombolysis
Abstract Leukoaraiosis (LA) is associated with structural and functional cerebrovascular impairment, which may compromise the capacity of ischemic tissue to maximize reperfusion after intravenous thrombolysis (IVT). We aimed to determine whether severe LA is correlated with reperfusion inefficiency, which contributes to infarct growth and poor functional outcome. We analyzed data from our consecutive acute ischemic stroke (AIS) patients who had acquired baseline and 24-h follow-up diffusion- and perfusion-weighted imaging. Reperfusion was defined as reduction of ≥70 % of hypoperfusion lesion at 24 h from basel...
Source: Translational Stroke Research - June 1, 2016 Category: Neurology Source Type: research