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Hemorrhagic Stroke ll: Pathophysiology

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...

Hemorrhagic Stroke l: Introduction

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...

Ischemic Stroke l: Introduction

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: Pathophysiology

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...

Overview of Systemic Arteries

Overview of Systemic Arteries

The human body is a complex, well-organized machine, and at the heart of its operations lies the circulatory system. This network of blood vessels, which includes systemic arteries, plays a vital role in maintaining life by transporting nutrients, oxygen, and waste products to and from cells throughout the body.
Systemic circulation is the part of the cardiovascular system that carries oxygenated blood away from the heart to the body's tissues and returns deoxygenated blood back to the heart.

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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Related Experiment Video

Updated: Jun 19, 2026

The bm12 Inducible Model of Systemic Lupus Erythematosus (SLE) in C57BL/6 Mice

The bm12 Inducible Model of Systemic Lupus Erythematosus (SLE) in C57BL/6 Mice

Published on: November 1, 2015

Stroke in systemic lupus erythematosus.

Anthony S Wierzbicki¹

¹St.Thomas' Hospital, Lambeth Palace Road, London SE1 7EH, UK. anthony.wierzbicki@kcl.ac.uk

Expert Review of Neurotherapeutics

|October 9, 2009

Summary

This summary is machine-generated.

Systemic lupus erythematosus (SLE) management is improving, but stroke risk remains high, particularly with anticardiolipin antibodies. Comprehensive cardiovascular prevention, including managing hypertension and hyperlipidemia, is crucial for SLE patients experiencing stroke.

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The bm12 Inducible Model of Systemic Lupus Erythematosus (SLE) in C57BL/6 Mice

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Area of Science:

Immunology
Cardiology
Neurology

Background:

Systemic lupus erythematosus (SLE) management has improved, altering disease epidemiology.
Cardiac and neurological manifestations are known, with growing emphasis on cardiovascular prevention in SLE.
Stroke is an excess in SLE, particularly in patients with anticardiolipin antibodies.

Purpose of the Study:

To review the changing epidemiology of stroke in SLE.
To highlight the role of traditional cardiovascular risk factors and endothelial dysfunction in SLE-related stroke.
To advocate for comprehensive stroke interventions in SLE.

Main Methods:

Literature review focusing on cardiovascular risk factors and stroke in SLE.
Analysis of current therapeutic approaches for stroke in SLE.
Synthesis of evidence regarding endothelial dysfunction and stroke in SLE.

Main Results:

Cardiovascular risk factors like hypertension, hyperlipidemia, and inflammatory markers contribute to stroke in SLE.
Endothelial dysfunction is increasingly recognized as a factor in SLE-related stroke.
Current treatments for stroke in SLE primarily rely on anticoagulation.

Conclusions:

Stroke interventions for SLE patients should mirror those for atherosclerotic stroke.
Comprehensive management including antihypertensive and lipid-lowering therapies is recommended.
Holistic cardiovascular care is essential for reducing stroke burden in SLE.