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Related Concept Videos

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...
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.
Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and narrowing...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
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...

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Updated: Jul 3, 2026

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

Transient ischemic attack overview: defining the challenges for improving outcomes.

Andy Jagoda1, Yu-Feng Yvonne Chan

  • 1Department of Emergency Medicine, Mount Sinai School of Medicine, New York, NY 10029-6574, USA. andy.jagoda@mssm.edu

Annals of Emergency Medicine
|July 29, 2008
PubMed
Summary
This summary is machine-generated.

Transient ischemic attacks (TIAs) are warning signs of future strokes. Prompt medical evaluation after a TIA is crucial for identifying and treating underlying causes to prevent a major stroke.

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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

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

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Published on: August 18, 2015

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

Area of Science:

  • Neurology
  • Vascular Neurology
  • Emergency Medicine

Background:

  • Transient ischemic attacks (TIAs) are transient neurologic events that can precede major strokes.
  • Studies show approximately 10% of TIA patients experience a stroke within 90 days, with half occurring within 48 hours.

Purpose of the Study:

  • To emphasize the urgency of TIA diagnosis and evaluation.
  • To highlight the need for expedited diagnostic pathways for TIA patients.
  • To improve patient outcomes by identifying correctable pathologies and guiding management.

Main Methods:

  • Literature review on TIA clinical features and outcomes.
  • Analysis of stroke risk following TIA.
  • Discussion of diagnostic and management strategies.

Main Results:

  • TIAs are significant predictors of subsequent strokes.
  • A substantial stroke risk exists within the first 48 hours post-TIA.
  • Current diagnostic and management pathways may require enhancement.

Conclusions:

  • Heightened awareness of TIA symptoms by patients and physicians is essential.
  • Facilitated evaluation pathways are needed for prompt identification of correctable causes.
  • Timely medical and surgical interventions are critical for stroke prevention after TIA.