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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

Classification and mechanisms of cerebrovascular disease

J P Mohr1

  • 1Neurological Institute of New York, Columbia-Presbyterian Medical Center, New York 10032.

Annals of Epidemiology
|September 1, 1993
PubMed

Insights

Most strokes are caused by infarction, often due to embolism from unknown sources. Some artery blockages lead to infarction via embolism or reduced blood flow, while lacunar disease causes about 20% of strokes.

Area of Science:

  • Neurology
  • Cardiovascular Medicine
  • Pathology

Background:

  • Stroke is a leading cause of death and disability worldwide.
  • Ischemic stroke, caused by infarction, accounts for the vast majority of stroke cases.
  • Understanding the underlying mechanisms of stroke is crucial for effective prevention and treatment.

Purpose of the Study:

  • To elucidate the primary causes and mechanisms of brain infarction leading to stroke.
  • To differentiate between embolic and perfusion-failure related infarcts in major artery disease.
  • To highlight the contribution of lacunar disease to overall stroke incidence.

Main Methods:

  • Review of existing literature on stroke etiology and pathophysiology.
  • Analysis of clinical data differentiating stroke mechanisms.
  • Categorization of stroke causes based on arterial involvement and infarct type.

Main Results:

  • Infarction causes 75-80% of all strokes.
  • Embolism from unidentified sources is the most common cause of infarction.
  • High-grade stenosis or occlusion of major arteries can cause infarction via local embolism or perfusion failure.
  • Lacunar disease accounts for approximately 20% of strokes.

Conclusions:

  • Embolic events are the predominant cause of ischemic stroke.
  • Both embolic and hemodynamic factors contribute to stroke in major artery disease.
  • Lacunar disease represents a distinct and significant subtype of stroke.

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