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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...

Atherosclerosis IV: Nursing Management

Atherosclerosis IV: Nursing Management

Nursing management for a patient with arteriosclerosis involves a comprehensive approach focusing on lifestyle modification, disease monitoring, education, and symptomatic care. Here is an overview of effective nursing strategies:Assessment and Monitoring: Initial and ongoing assessments are crucial. Nurses must document the patient's medical history, including any hypertension, diabetes, hyperlipidemia, and other cardiovascular diseases. Assessments also cover family history and lifestyle...

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...

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...

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...

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Related Experiment Video

Updated: Jul 7, 2026

Transient Middle Cerebral Artery Occlusion Model of Stroke

Transient Middle Cerebral Artery Occlusion Model of Stroke

Published on: August 11, 2023

[Stroke in cancer patients].

Hiromi Terashi¹, Shinichiro Uchiyama, Makoto Iwata

¹Department of Neurology, Tokyo Women's University School of Medicine, 8-1 Kawada cho, Shinjuku-ku, Tokyo 162 8666, Japan.

Brain and Nerve = Shinkei Kenkyu No Shinpo

|March 1, 2008

Summary

Malignant tumors increase stroke risk through complex mechanisms like Trousseau's syndrome and disseminated intravascular coagulopathy (DIC). Understanding cancer type, stage, and treatments is crucial for stroke prevention in these patients.

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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

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Last Updated: Jul 7, 2026

Transient Middle Cerebral Artery Occlusion Model of Stroke

Transient Middle Cerebral Artery Occlusion Model of Stroke

Published on: August 11, 2023

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

Area of Science:

Oncology
Neurology
Hematology

Context:

Malignant tumors present diverse cerebrovascular complications.
The pathogenesis of thrombosis in malignancy is complex and not fully understood.
Cancer cells interact with the host to create a hypercoagulable state.

Purpose:

To elucidate the multifaceted causes of cerebrovascular complications in cancer patients.
To highlight the role of tumor cells in activating the coagulation cascade.
To underscore the importance of recognizing malignancy as a significant stroke risk factor.

Summary:

Cancer cells promote coagulation via cytokines, leading to conditions like Trousseau's syndrome and disseminated intravascular coagulopathy (DIC), increasing stroke risk.
Nonbacterial thrombotic endocarditis (NBTE) and paradoxical embolism are other potential causes of stroke in cancer patients.
Cancer treatments, including chemotherapy, tamoxifen, and radiotherapy, can further elevate stroke risk, particularly in breast, head and neck cancers.

Impact:

Recognizing malignancy as a stroke risk factor is increasingly vital for physicians.
Understanding patient-specific factors (cancer type, stage, treatments) is key for effective stroke prevention strategies.
This knowledge aids in providing appropriate care and improving outcomes for cancer patients at risk of stroke.