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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.
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

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...
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...
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...
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...

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Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients
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Published on: December 16, 2022

Falls in individuals with stroke.

Vivian Weerdesteyn1, Mark de Niet, Hanneke J R van Duijnhoven

  • 1Department of Rehabilitation, Radboud University Nijmegen Medical Centre, PO Box 9101, 6500 HB Nijmegen, the Netherlands. v.weerdesteyn@reval.umcn.nl

Journal of Rehabilitation Research and Development
|February 24, 2009
PubMed
Summary

Stroke survivors frequently fall, risking injury and independence loss. Task-specific exercises show promise in reducing falls by improving balance and gait in stroke patients.

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Area of Science:

  • Neurology
  • Rehabilitation Medicine
  • Gerontology

Background:

  • Individuals recovering from stroke face a significantly elevated risk of falls across all recovery stages.
  • Falls in stroke survivors can lead to severe physical consequences, including hip fractures, and psychosocial issues such as fear of falling, reduced activity, and loss of independence.
  • Key risk factors for falls post-stroke include deficits in balance, characterized by reduced postural stability and impaired responses to perturbations, and gait abnormalities, such as decreased propulsion and stability.

Purpose of the Study:

  • To review the risk factors for falls in stroke survivors.
  • To explore the potential of interventions targeting balance and gait deficits for fall prevention.
  • To assess the current evidence for task-specific exercises and technological advancements in mitigating falls.

Main Methods:

  • Literature review of studies on stroke, falls, balance, gait, and interventions.
  • Analysis of risk factors contributing to falls in the stroke population.
  • Evaluation of preliminary evidence for exercise programs and assistive technologies.

Main Results:

  • Balance and gait deficits are primary contributors to falls in stroke survivors.
  • Task-specific exercise programs targeting these deficits demonstrate preliminary success in reducing fall incidence.
  • Technological advancements in assistive devices offer a promising avenue for fall prevention, though further research is required.

Conclusions:

  • Interventions focused on improving balance and gait are crucial for preventing falls in individuals with stroke.
  • Task-specific exercises show potential efficacy, but more research is needed to confirm their long-term benefits.
  • Further investigation into assistive technologies is warranted to establish their role in fall prevention strategies for stroke survivors.