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Related Concept Videos

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...
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
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...
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...
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.

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Updated: Jun 22, 2026

Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions
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Evaluation of the Cognitive Performance of Hypertensive Patients with Silent Cerebrovascular Lesions

Published on: April 23, 2021

[Cerebrovascular diseases].

P J Kuhlencordt1, J Röling, U Hoffmann

  • 1Abteilung Angiologie, Medizinische Poliklinik-Standort Innenstadt, Klinikum der Ludwig-Maximilians-Universität, Pettenkoferstrasse 8, Munich, Germany. peter.kuhlencordt@med.uni-muenchen.de

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Summary
This summary is machine-generated.

Atherosclerosis is a primary cause of cerebrovascular disease. Effective management involves risk factor control and, for severe carotid artery stenosis, revascularization offers significant benefits.

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Area of Science:

  • Neurology
  • Vascular Surgery
  • Radiology

Context:

  • Cerebrovascular disease often stems from atherosclerosis.
  • Duplex ultrasonography is the primary diagnostic method.
  • Managing cardiovascular risk factors is crucial for secondary prevention.

Purpose:

  • To outline the diagnostic and therapeutic strategies for cerebrovascular disease.
  • To define indications for revascularization in carotid artery stenosis.
  • To highlight considerations for rare causes in younger patients.

Summary:

  • Atherosclerosis is the leading cause of cerebrovascular disease, with duplex ultrasonography as the preferred diagnostic tool.
  • Secondary prevention focuses on managing cardiovascular risk factors.
  • Revascularization is indicated for symptomatic internal carotid artery stenosis >70% and for asymptomatic stenosis >60% if perioperative risk is <3%.

Impact:

  • Informs clinical decision-making for cerebrovascular disease management.
  • Emphasizes the importance of individualized revascularization strategies based on patient risk and local expertise.
  • Promotes consideration of less common etiologies in specific patient populations.