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Related Concept Videos

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 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...
Regulation of Stroke Volume01:27

Regulation of Stroke Volume

The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
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...
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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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Related Experiment Video

Updated: May 7, 2026

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

Intervention in stroke. The future ahead.

S Nayak1

  • 1University Hospital of North Staffordshire; Stoke on Trent, Staffordshire, UK - Sanjeev.Nayak@uhns.nhs.uk.

The Neuroradiology Journal
|September 25, 2013
PubMed
Summary
This summary is machine-generated.

This study shows that mechanical thrombectomy using the Solitaire AB device is effective for acute stroke patients resistant to IV rtPA. High rates of successful clot retrieval and favorable clinical outcomes were observed.

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Area of Science:

  • Neurology
  • Interventional Neuroradiology
  • Vascular Neurology

Background:

  • Acute ischemic stroke treatment is rapidly advancing.
  • Intravenous thrombolysis (IV rtPA) is standard, but some patients remain refractory.
  • Endovascular therapies offer alternative treatment options for select stroke patients.

Purpose of the Study:

  • To present initial outcomes of endovascular clot retrieval in acute stroke patients.
  • To evaluate the efficacy and safety of mechanical thrombectomy in rtPA-resistant stroke.
  • To assess the performance of the Solitaire AB device in acute ischemic stroke.

Main Methods:

  • Retrospective analysis of 18 acute stroke patients with confirmed thrombus.
  • Patients were resistant to IV rtPA and underwent endovascular treatment.
  • Mechanical thrombectomy, often with the Solitaire AB device, and IA thrombolysis were employed.

Main Results:

  • 91% of patients treated with the Solitaire AB device achieved a TIMI score of 3 (excellent reperfusion).
  • 61% of the patient cohort achieved a modified Rankin Scale (MRS) score of ≤ 2 at discharge (good functional outcome).
  • Partial to complete clot retrieval was achieved in all treated patients.

Conclusions:

  • Mechanical thrombectomy, particularly with the Solitaire AB device, is a safe and effective treatment for acute ischemic stroke.
  • This approach offers significant clinical benefit for patients unresponsive to IV rtPA.
  • Endovascular therapy represents a crucial advancement in acute stroke management.