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Related Concept Videos

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.
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...
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...
Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
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...

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Updated: May 12, 2026

Isolation and Flow Cytometric Assessment of Neuroimmune Interactions in a Mini-Stroke Murine Model
08:22

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Published on: June 20, 2025

Central nervous system infections and stroke -- a population-based analysis.

L-N Chien1, N-F Chi, C-J Hu

  • 1School of Health Care Administration, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan.

Acta Neurologica Scandinavica
|April 5, 2013
PubMed
Summary

Central nervous system (CNS) infections significantly increase stroke risk in adults by 2.75-3.44 times, particularly within the first year post-infection. Acute CNS infections do not appear to raise the risk of acute myocardial infarction (AMI).

Keywords:
cerebrovascular diseasesinfectionsstrokes

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Published on: May 19, 2020

Area of Science:

  • Neurology
  • Infectious Diseases
  • Vascular Medicine

Background:

  • Chronic central nervous system (CNS) infections are linked to cerebrovascular issues.
  • The association between acute CNS infections and vascular disease risk remains unstudied.

Purpose of the Study:

  • To investigate the risk of stroke and acute myocardial infarction (AMI) in adult patients following acute CNS infections.
  • To determine if acute CNS infections elevate the likelihood of developing vascular diseases.

Main Methods:

  • A population-based cohort study utilizing Taiwan's National Health Insurance Research Database (2000-2009).
  • Included 533 adult patients diagnosed with CNS infections, matched 1:5 with a control group.
  • Kaplan-Meier analysis was employed to compare stroke and AMI risks over a minimum 1-year follow-up, adjusting for covariates.

Main Results:

  • Patients with CNS infections exhibited a 2.75-3.44 times higher risk of stroke compared to controls, even after adjusting for demographics and comorbidities.
  • Over 70% of stroke events occurred within one year post-CNS infection.
  • No significant increase in AMI risk was observed in patients with CNS infections.

Conclusions:

  • Adults with CNS infections face a substantially elevated risk of stroke, predominantly within the year following infection.
  • Acute CNS infections do not appear to increase the risk of acute myocardial infarction (AMI).
  • Findings highlight the critical need for monitoring cerebrovascular health in patients recovering from CNS infections.