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Related Concept Videos

Stroke: Introduction and Types01:29

Stroke: Introduction and Types

A stroke is an acute neurological event caused by the sudden disruption of cerebral blood flow, leading to rapid loss of neuronal function. Neurons depend on continuous oxygen and glucose supply, so even brief interruptions can cause irreversible injury within minutes. Strokes are classified into ischemic and hemorrhagic types.Ischemic StrokeIschemic strokes are most common and occur due to arterial occlusion, depriving brain tissue of oxygen and nutrients. This leads to energy failure, ionic...
Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
Dementia l: Introduction01:22

Dementia l: Introduction

Dementia is an acquired, progressive syndrome characterized by a decline in multiple cognitive domains severe enough to impair daily functioning and reduce independence. Although memory loss is a central feature, the diagnosis requires additional deficits involving language, executive function, visuospatial skills, judgment, calculation, or abstract reasoning. These cognitive impairments reflect underlying neurodegenerative or vascular processes that gradually disrupt neuronal networks...

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Permanent Cerebral Vessel Occlusion via Double Ligature and Transection
08:22

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection

Published on: July 21, 2013

Basic neuroanatomy and stroke syndromes.

Joseph R Pare1, Joseph H Kahn

  • 1Department of Emergency Medicine, Boston Medical Center, 1 Boston Medical Center Place, Boston, MA 02118, USA.

Emergency Medicine Clinics of North America
|September 15, 2012
PubMed
Summary
This summary is machine-generated.

Stroke affects all ages, with young adults showing significant racial disparities. Early recognition and evaluation, using tools like the National Institute of Health Stroke Scale, are crucial for timely acute stroke care.

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A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
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Permanent Cerebral Vessel Occlusion via Double Ligature and Transection
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A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
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Performing Permanent Distal Middle Cerebral with Common Carotid Artery Occlusion in Aged Rats to Study Cortical Ischemia with Sustained Disability
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Performing Permanent Distal Middle Cerebral with Common Carotid Artery Occlusion in Aged Rats to Study Cortical Ischemia with Sustained Disability

Published on: February 23, 2016

Area of Science:

  • Neurology
  • Public Health

Background:

  • Stroke is often perceived as a disease of older individuals.
  • Racial disparities in stroke incidence are particularly pronounced in younger adult populations.
  • Acute stroke can occur at any age, necessitating broad clinical awareness.

Purpose of the Study:

  • To emphasize that stroke is not exclusive to the elderly.
  • To highlight the importance of understanding stroke evaluation and treatment for all age groups.
  • To provide foundational knowledge on neuroanatomy, pathophysiology, and stroke syndromes.

Main Methods:

  • Review of neuroanatomy and stroke pathophysiology.
  • Discussion of common stroke syndromes.
  • Introduction to the National Institute of Health Stroke Scale for objective patient evaluation.

Main Results:

  • Stroke incidence is relevant across all age demographics.
  • Racial disparities in stroke are notably evident among young adults.
  • The National Institute of Health Stroke Scale offers an objective method for stroke assessment.

Conclusions:

  • Stroke awareness and management are critical for all age groups, not just the elderly.
  • Addressing racial disparities in stroke among young adults is a public health priority.
  • Familiarity with neuroanatomy, pathophysiology, and stroke syndromes is essential for effective clinical practice.