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Stroke: Introduction and Types

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...

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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...

Ischemic Stroke ll: Pathophysiology

Ischemic Stroke ll: Pathophysiology

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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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Ischemic Stroke l: Introduction

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Updated: May 18, 2026

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia

Published on: August 18, 2015

Pediatric stroke.

Charise L Freundlich¹, Anna M Cervantes-Arslanian, David H Dorfman

¹Division of Pediatric Emergency Medicine, Boston University School of Medicine/Boston Medical Center, 72 East Concord Street, Boston, MA 02118, USA.

Emergency Medicine Clinics of North America

|September 15, 2012

Summary

Pediatric stroke, though rare, causes severe illness and death. Recognizing its signs and risk factors is crucial for emergency physicians, as adult stroke treatments may not apply to children.

Area of Science:

Pediatric Neurology
Emergency Medicine
Public Health

Background:

Pediatric stroke is uncommon but carries substantial morbidity and mortality.
Emergency department physicians are often the first point of contact for children with stroke.
Understanding pediatric stroke is vital for timely and appropriate medical intervention.

Purpose of the Study:

To review the epidemiology, clinical features, and risk factors of pediatric stroke.
To outline current evaluation and treatment strategies for pediatric stroke.
To highlight the need for specific research into pediatric stroke management.

Main Methods:

Literature review of pediatric stroke.
Synthesis of data on epidemiology, presentation, and risk factors.

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Analysis of current treatment and prognosis information.

Main Results:

Pediatric stroke presents with diverse clinical features and has various associated risk factors.
The review covers different stroke types, diagnostic evaluations, and therapeutic approaches.
Existing knowledge from adult stroke care is insufficient for pediatric cases.

Conclusions:

Pediatric stroke requires specialized recognition and management distinct from adult stroke.
Further research is essential for developing effective acute and preventative treatments for children.
Improved understanding and tailored interventions are needed to reduce the impact of pediatric stroke.