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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...
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 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...
Spinal Cord Injury ll: Pathophysiology01:14

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
Secondary Spinal Cord Injury llI: Pathophysiology01:25

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...

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Related Experiment Video

Updated: Jul 12, 2026

A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats
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An overview of post-stroke disability.

Chih-Hao Chen1, Ting-Yu Chang2, Pi-Shan Sung3

  • 1Stroke Center & Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan.

Journal of the Formosan Medical Association = Taiwan Yi Zhi
|November 7, 2025
PubMed
Summary

Post-stroke disability (PSD) presents significant challenges, affecting millions globally. Comprehensive care, including rehabilitation and new therapies, is crucial for improving patient outcomes and quality of life.

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Area of Science:

  • Neurology
  • Rehabilitation Medicine

Background:

  • Stroke is a primary cause of long-term disability worldwide.
  • While acute treatments improve survival, post-stroke disability (PSD) remains a major challenge.
  • PSD encompasses diverse impairments affecting independence and quality of life.

Purpose of the Study:

  • To provide a comprehensive overview of common post-stroke disabilities.
  • To review current management strategies for PSD.
  • To highlight areas for future research and collaborative efforts.

Main Methods:

  • Literature review of post-stroke disability types and management.
  • Synthesis of information on motor, cognitive, and emotional impairments.
  • Analysis of current and emerging therapeutic interventions.

Main Results:

  • Common PSDs include motor dysfunction, cognitive impairment, dysphagia, depression, epilepsy, aphasia, pain, and fatigue.
  • Management requires a multidisciplinary approach with pharmacological, rehabilitative, and novel therapies.
  • Early intervention and comprehensive care are key to improving outcomes.

Conclusions:

  • Addressing PSD is critical for enhancing patient independence and quality of life.
  • Further research is needed for refined diagnostics, optimized rehabilitation, and personalized interventions, especially in Asian populations.
  • Collaborative efforts are essential for advancing post-stroke care and recovery.