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Related Concept Videos

Stroke: Introduction and Types01:29

Stroke: Introduction and Types

16
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...
16
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

8
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...
8
Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

21
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.
21
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

8
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...
8
Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

9
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...
9
Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

21
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...
21

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Related Experiment Video

Updated: Apr 23, 2026

Surgical Approach for Middle Cerebral Artery Occlusion and Reperfusion Induced Stroke in Mice
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Stroke in Asia: a global disaster.

Jong S Kim

    International Journal of Stroke : Official Journal of the International Stroke Society
    |September 19, 2014
    PubMed
    Summary

    Stroke burden is high in Asia, with declining mortality in the Northeast but persistent challenges in the South. Urgent primary prevention and lifestyle changes are crucial to avert a global health crisis.

    Area of Science:

    • Neurology
    • Public Health
    • Gerontology

    Background:

    • Stroke presents a significant global health challenge, disproportionately affecting Asia with higher mortality rates compared to Europe or North America.
    • The Asian stroke landscape is divided: Northeast Asian nations show declining mortality due to improved risk factor control and stroke care, yet face rising incidence from aging populations.
    • Southern Asian countries grapple with fundamental issues, including the increasing prevalence of uncontrolled risk factors like hypertension and diabetes, coupled with insufficient neurological care infrastructure.

    Purpose of the Study:

    • To analyze the dichotomized stroke burden across Asia, highlighting regional disparities in mortality, incidence, and care.
    • To identify key factors contributing to stroke trends in Northeast and Southern Asia, including aging populations, lifestyle changes, and healthcare system limitations.
    Keywords:
    Asiapreventionstroke

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  • To emphasize the critical need for primary stroke prevention strategies and government initiatives to mitigate the escalating impact of stroke in Asia and globally.

    • Main Methods:

    • Comparative analysis of stroke mortality, case fatality, and incidence rates across different Asian regions and global comparison.
    • Review of contributing factors, including demographic shifts (aging population), prevalence and control of major stroke risk factors (hypertension, diabetes, obesity, smoking), and healthcare system capacity (neurologists, stroke centers, diagnostics).
    • Assessment of caregiver burden and socio-economic implications of increasing stroke survivors.

    Main Results:

    • Stroke mortality and case fatality are declining in Northeast Asia (e.g., Korea, Japan, Taiwan, urban China) due to risk factor management and improved stroke care.
    • Stroke incidence is not declining in Northeast Asia, largely due to rapidly aging populations, leading to an increased number of stroke survivors requiring long-term care.
    • Southern Asian countries face high stroke fatality and mortality due to a high prevalence of poorly controlled risk factors and inadequate stroke care infrastructure.

    Conclusions:

    • Primary stroke prevention through promoting healthy lifestyles (low salt intake, exercise, smoking cessation) is the most urgent priority for Asia.
    • Government intervention is essential to support primary prevention efforts and strengthen healthcare systems to manage the growing stroke burden.
    • Failure to address the escalating stroke burden, exacerbated by aging populations, poses a significant threat to economic stability and societal well-being globally, potentially leading to a global disaster.