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Journal ArticleDOI

Collateral blood vessels in acute ischaemic stroke: a potential therapeutic target

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TLDR
Imaging of the brain and vessels has shown that collateral flow can sustain brain tissue for hours after the occlusion of major arteries to the brain, and the augmentation or maintenance of collateral flow is therefore a potential therapeutic target.
Abstract
Summary Ischaemic stroke results from acute arterial occlusion leading to focal hypoperfusion. Thrombolysis is the only proven treatment. Advanced neuroimaging techniques allow a detailed assessment of the cerebral circulation in patients with acute stroke, and provide information about the status of collateral vessels and collateral blood flow, which could attenuate the effects of arterial occlusion. Imaging of the brain and vessels has shown that collateral flow can sustain brain tissue for hours after the occlusion of major arteries to the brain, and the augmentation or maintenance of collateral flow is therefore a potential therapeutic target. Several interventions that might augment collateral blood flow are being investigated.

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A new middle cerebral artery occlusion model for intra-arterial drug infusion in rats

TL;DR: The present model was easily established, had a high success rate, caused minimal surgical injury, and enabled highly efficient drug delivery, and is an efficient tool for investigating the effect of intra-arterial drug delivery on ischemic cerebral tissue.
Proceedings ArticleDOI

Super-resolution photoacoustic microscopy based on deep learning

TL;DR: The experimental results verify that this end-to-end convolutional neural network from low resolution to high resolution can effectively improve the resolution of photoacoustic imaging.

A sensory stimulation-based collateral therapeutic for ischemic stroke: new insights and limitations

TL;DR: The results suggest that this collateral-based sensory stimulation treatment does not prevent ischemic stroke damage in hypertensive conditions, in which the vasculature, including collateral vessels, are known to be impaired.
Journal ArticleDOI

Elevated cerebral perfusion and preserved cognition in elite Brazilian Jiu-Jitsu athletes: Evidence for neuroprotection.

TL;DR: In this article, the authors compared eleven elite Brazilian Jiu-Jitsu athletes (aged 30 ± 8 y) who trained 12 ± 6 hours/week for 8 ± 4 years against eleven cardiorespiratory fitness (CRF)-and age-matched controls.
Journal ArticleDOI

Advances in imaging of intracranial atherosclerotic disease and implications for treatment.

TL;DR: Overall, symptomatic ICAD remains a high risk condition with suboptimal treatment options and there may be a subset of patients less responsive to medical interventions, such as those with hemodynamic failure as opposed to those with perforator syndromes, who would benefit from medical plaque stabilization or safer endovascular approaches such as angioplasty alone.
References
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Journal ArticleDOI

Classification of subtype of acute ischemic stroke. Definitions for use in a multicenter clinical trial. TOAST. Trial of Org 10172 in Acute Stroke Treatment

TL;DR: The TOAST stroke subtype classification system is easy to use and has good interobserver agreement and should allow investigators to report responses to treatment among important subgroups of patients with ischemic stroke.
Journal ArticleDOI

Thresholds in cerebral ischemia - the ischemic penumbra.

J Astrup, +2 more
- 01 Nov 1981 - 
TL;DR: Recent evidence indicates that immediate failure of basic functions such as synaptic transmission, ion pumping and energy metabolism in the ischemic brain, is critically dependent on residual blood flow, and that these functions fail at certain critical flow thresholds.
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