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Related Concept Videos

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...
Drug Abuse and Addiction: Pharmacological Phenomena01:15

Drug Abuse and Addiction: Pharmacological Phenomena

Drug dependence, abuse, and addiction are complex phenomena that can precipitate various abnormal states. Physical dependence refers to a state of pharmacological adaptation to a drug. This adaptation often results in tolerance—a reduced response to the drug after repeated administrations. When the drug use is abruptly stopped, withdrawal symptoms occur due to the body's need to readjust from the pharmacologically induced imbalance. However, tolerance and withdrawal symptoms do not necessarily...
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.
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...
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...
Atherosclerosis IV: Nursing Management01:23

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...

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A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats
04:38

A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats

Published on: May 22, 2019

Drug abuse and stroke.

Ana Catarina Fonseca1, José M Ferro

  • 1Department of Neurology, Hospital de Santa Maria, Instituto de Medicina Molecular, University of Lisbon, Av. Prof. Egas Moniz, 1649-035 Lisbon, Portugal. catarinagfonseca@gmail.com

Current Neurology and Neuroscience Reports
|January 10, 2013
PubMed
Summary
This summary is machine-generated.

Illicit drug use, particularly stimulants like amphetamine and cocaine, significantly increases stroke risk in young adults. Further research is needed to understand the unclear mechanisms behind drug-induced cerebrovascular events.

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A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
06:01

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia

Published on: August 18, 2015

Area of Science:

  • Neurology
  • Toxicology
  • Public Health

Background:

  • Cerebrovascular disorders are a significant cause of morbidity and disability in illicit drug users.
  • Drug abusers face an elevated risk of both hemorrhagic and ischemic stroke.
  • Illicit drug use is a common cause of stroke among young adults in areas with high prevalence.

Purpose of the Study:

  • To summarize the association between illicit drug use and cerebrovascular disorders.
  • To highlight the common illicit drugs implicated in stroke.
  • To recommend appropriate diagnostic screening for at-risk populations.

Main Methods:

  • Review of existing literature on drug abuse and stroke.
  • Analysis of commonly implicated illicit substances (psychomotor stimulants, opioids, cannabis).
  • Discussion of diagnostic approaches including toxicology screening and neuroimaging.

Main Results:

  • Psychomotor stimulants (amphetamine, cocaine) are most frequently linked to stroke.
  • Opioids and psychotomimetic drugs (cannabis) are less commonly associated.
  • Toxicology screening is recommended for young stroke patients with unclear causes.

Conclusions:

  • Illicit drug abuse is a critical factor in young adult stroke.
  • The precise mechanisms of drug-induced stroke require further investigation, including hemodynamic and immunologic factors.
  • Early identification and screening are crucial for managing stroke in drug-abusing populations.