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Related Concept Videos

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...
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.
Acute Coronary Syndrome IV: Interprofessional Care01:28

Acute Coronary Syndrome IV: Interprofessional Care

IntroductionThe management of Acute Coronary Syndrome (ACS) aims to minimize myocardial damage, preserve myocardial function, and prevent complications.Initial ManagementInpatient management involves continuous cardiac monitoring, preferably in an ICU, focusing on blood pressure, serum sodium, potassium, and creatinine levels, and urine output. Ongoing pharmacologic management is crucial for stabilizing the patient.Supplemental Oxygen: Administer supplemental oxygen if oxygen saturation is...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
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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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
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Published on: January 18, 2018

Stroke unit care: does ischemic stroke subtype matter?

Gustavo Saposnik1, Khalid A Hassan, Daniel Selchen

  • 1Stroke Outcomes Research Unit, Stroke Research Unit, Department of Medicine, Division of Neurology, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada. saposnikg@smh.ca

International Journal of Stroke : Official Journal of the International Stroke Society
|May 12, 2011
PubMed
Summary
This summary is machine-generated.

All ischemic stroke subtypes benefit from specialized stroke unit care, which reduces mortality. This evidence supports universal access to stroke units for all patients, regardless of stroke cause.

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Area of Science:

  • Neurology
  • Public Health
  • Clinical Medicine

Background:

  • Stroke unit care is known to improve outcomes for ischemic stroke patients.
  • However, the differential benefit of stroke unit admission across various ischemic stroke subtypes remained unclear.

Purpose of the Study:

  • To investigate whether the positive impact of stroke unit admission is consistent across all subtypes of ischemic stroke.
  • To provide evidence-based recommendations for stroke care resource allocation.

Main Methods:

  • A prospective cohort study was conducted with 6223 patients admitted for acute ischemic stroke between 2003 and 2007.
  • Ischemic stroke subtypes were classified using modified Trial of Org 10172 in Acute Stroke Treatment criteria (small vessel disease, large artery disease, cardioembolic, other).
  • Primary outcome was 30-day all-cause mortality; secondary outcomes included 7-day mortality and discharge disposition.

Main Results:

  • Stroke unit care was associated with significantly lower 30-day risk-adjusted mortality across all investigated stroke subtypes.
  • Multivariable analysis, controlling for key patient and stroke factors, confirmed a significant mortality reduction with stroke unit admission for lacunar stroke (OR 0.48), large artery disease (OR 0.39), cardioembolic stroke (OR 0.46), and other causes (OR 0.45).
  • Sensitivity and secondary analyses, including patients with missing subtype data, supported these findings.

Conclusions:

  • This study demonstrates that all ischemic stroke subtypes benefit from admission to a stroke unit.
  • The findings provide real-world evidence that stroke unit care is effective regardless of stroke etiology.
  • Access to stroke unit care should not be restricted based on stroke subtype.