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

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A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats
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A Middle Cerebral Artery Occlusion Technique for Inducing Post-stroke Depression in Rats

Published on: May 22, 2019

A stroke in the woods.

Carl McQueen1, David Roberts, Daniel Evans

  • 1Academic Department of Anaesthesia, Critical Care, Pain and Resuscitation Research, Birmingham Heartlands Hospital, MIDRU Building, Bordesley Green East, Birmingham B9 5SS, UK. carl_mcqueen@hotmail.com

Emergency Medicine Journal : EMJ
|April 16, 2013
PubMed
Summary
This summary is machine-generated.

Helicopter emergency medical services in rural areas require extra resources for patient access when land ambulances are limited. Effective coordination with additional assets is crucial for remote emergency response.

Keywords:
mountian rescuepre-hospitalprehospital care, communicationsremote and rural medicinestroke

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Area of Science:

  • Emergency Medicine
  • Aeromedical Services
  • Rural Healthcare Access

Background:

  • Limited accessibility by traditional land-based ambulances in rural settings presents challenges for emergency medical services.
  • Helicopter emergency medical services (HEMS) are vital for reaching patients in remote or difficult-to-access locations.
  • The need for specialized resources to overcome access barriers in rural emergency response is well-established.

Observation:

  • This case highlights a scenario where conventional land ambulance access was restricted.
  • Additional resources were necessary to facilitate patient access and safe transport egress.
  • The operational environment involved a remote rural location with significant access challenges.

Findings:

  • Successful patient management depended on the integration of HEMS with supplementary resources.
  • Coordination between different emergency assets was key to overcoming access limitations.
  • The case demonstrates a practical application of resource augmentation in challenging HEMS operations.

Implications:

  • Findings underscore the necessity of robust logistical planning and resource integration for HEMS in rural environments.
  • Enhanced inter-agency cooperation and the strategic use of diverse assets can improve patient outcomes in remote areas.
  • This case provides a model for optimizing emergency medical response in geographically challenging regions.