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Related Concept Videos

Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

29
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.
29
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

15
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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Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

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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...
13
Stroke: Introduction and Types01:29

Stroke: Introduction and Types

39
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...
39
Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

42
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...
42
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

14
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...
14

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Stroke: an update.

José M Ferro1, Catarina Fonseca

  • 1Department of Neurosciences (Neurology), Hospital de Santa Maria, University of Lisbon, Lisbon, Portugal, jmferro@fm.ul.pt.

Journal of Neurology
|August 8, 2014
PubMed
Summary
This summary is machine-generated.

This paper summarizes key manuscripts on cerebrovascular diseases, highlighting important findings in brain vascular conditions. It focuses on the most relevant research in the field of neurology.

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Area of Science:

  • Neurology
  • Vascular Medicine
  • Neuroscience

Background:

  • Cerebrovascular diseases are a significant focus for the Journal of Neurology.
  • A review of recent submissions highlights the importance of this research area.

Purpose of the Study:

  • To summarize the most relevant manuscripts on cerebrovascular diseases.
  • To provide an overview of selected areas within brain vascular conditions.

Main Methods:

  • Review and selection of submitted manuscripts.
  • Identification of key research areas in cerebrovascular diseases.

Main Results:

  • Selected manuscripts cover critical aspects of vascular diseases of the brain.
  • The summary highlights significant contributions to the field.

Conclusions:

  • The Journal of Neurology frequently publishes important research on cerebrovascular diseases.
  • This summary offers insights into the leading research in brain vascular health.