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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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Pial Collateral Reactivity During Hypertension and Aging Understanding the Function of Collaterals for Stroke Therapy

TL;DR: These results suggest that therapeutic opening of pial collaterals is possible during middle cerebral artery occlusion to create penumbral tissue and prevent infarct expansion and show for the first time that LMAs from young and aged SHR are vasoconstricted and have impaired vasodilatory responses that may contribute to greater perfusion deficit and little penumbrals.
Journal ArticleDOI

The role of CD44 in pathological angiogenesis.

TL;DR: The current understanding of the roles of CD44 in pathological angiogenesis and the underlying cellular and molecular mechanisms are summarized.
Journal ArticleDOI

Prognostic Evaluation Based on Cortical Vein Score Difference in Stroke

TL;DR: Venous features on computed tomography angiography provide additional characterization of collateral perfusion and prognostication in acute ischemic stroke and accurately predicts clinical outcomes.
Journal ArticleDOI

Collateral circulation in acute stroke: Assessing methods and impact: A literature review

TL;DR: A literature review of studies evaluating collaterals at the acute phase of a carotid territory ischemic stroke found dynamic CT angiography to be the most appropriate modality.
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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