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Related Concept Videos

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...
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...
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.
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...

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Updated: Jun 21, 2026

Transient Middle Cerebral Artery Occlusion Model of Stroke
05:32

Transient Middle Cerebral Artery Occlusion Model of Stroke

Published on: August 11, 2023

[Migraine-related stroke. Two case-reports.].

J H Eliasson, E M Valdimarsson, B Jonsdottir

    Laeknabladid
    |August 12, 2009
    PubMed
    Summary

    Migraine is a significant cause of stroke in young adults, with symptoms like hemianopia. This report details two cases of stroke occurring during typical migraine attacks.

    Area of Science:

    • Neurology
    • Cardiovascular Medicine

    Context:

    • Migraine is a leading cause of stroke in young adults, accounting for 3-25% of cases.
    • An estimated 9-10 cases of migraine-related stroke occur annually in Iceland.

    Purpose:

    • To describe two cases of stroke occurring in association with migraine.
    • To highlight the clinical presentation and diagnostic considerations for migraine-related stroke.

    Summary:

    • The most frequent symptom observed was hemianopia, with other common manifestations including hemiparesis, hemianesthesia, dysphasia, and brainstem-related symptoms.
    • Diagnosis requires the stroke to occur during a typical migraine attack, with other potential causes of stroke excluded.

    Impact:

    • Enhances understanding of the link between migraine and stroke in young individuals.

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    Transient Middle Cerebral Artery Occlusion Model of Stroke
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    3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
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    Published on: June 2, 2014

  • Informs clinical recognition and management of this specific stroke subtype.