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Related Concept Videos

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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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.
Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
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...
Hemorrhagic Stroke l: Introduction01:17

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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...

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Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
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Published on: April 23, 2021

Vascular cognitive impairment.

Muhammad U Farooq1, Philip B Gorelick

  • 1Medical Director, Stroke and Vascular Neurology, Hauenstein Neuroscience Center, 220 Cherry Street SE, Grand Rapids, MI 49503, USA. farooqmu@trinity-health.org

Current Atherosclerosis Reports
|April 25, 2013
PubMed
Summary
This summary is machine-generated.

Vascular cognitive impairment (VCI) encompasses cognitive decline due to various strokes and vascular brain injuries. Early recognition and management of VCI are crucial for preventing and treating cognitive issues in aging populations.

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Area of Science:

  • Neurology
  • Geriatrics
  • Vascular Medicine

Background:

  • Vascular cognitive impairment (VCI) represents a spectrum of cognitive deficits linked to cerebrovascular disease.
  • Vascular factors significantly contribute to cognitive decline, particularly in older adults.
  • Co-occurrence of stroke and Alzheimer's disease may exacerbate cognitive impairment.

Purpose of the Study:

  • To review the definition, clinical presentation, and underlying mechanisms of VCI.
  • To explore cardiovascular risk factors associated with VCI.
  • To discuss potential prevention and treatment strategies for VCI.

Main Methods:

  • Literature review focusing on VCI definition, clinical aspects, and pathophysiology.
  • Analysis of epidemiological data on vascular contributions to cognitive impairment.
  • Synthesis of current research on risk factors, prevention, and treatment of VCI.

Main Results:

  • VCI includes cognitive impairment from all stroke types and subclinical vascular brain injury.
  • Vascular contributions to cognitive impairment are prevalent, especially with aging.
  • Combined vascular and neurodegenerative pathologies can synergistically worsen cognition.

Conclusions:

  • VCI is a significant and potentially modifiable cause of cognitive impairment in later life.
  • Understanding VCI is essential for healthcare providers to improve patient care.
  • Early identification and intervention can mitigate the impact of VCI on cognitive function.