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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...
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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...
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.
Cardiopulmonary Resuscitation IV: Pharmacological Management01:25

Cardiopulmonary Resuscitation IV: Pharmacological Management

Pharmacologic intervention is crucial in treating cardiac arrest patients during ACLS or Advanced Cardiovascular Life Support. The ACLS algorithms guide the administration of specific drugs based on the patient's cardiac arrest rhythm, which includes pulseless ventricular tachycardia (VT), ventricular fibrillation (VF), asystole, and pulseless electrical activity (PEA).EpinephrineIndication: Epinephrine is the first-line drug for all cardiac arrest rhythms.Mechanism of Action: Epinephrine...

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

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Published on: January 18, 2018

Systemic reperfusion therapy in acute ischemic stroke.

P Martínez-Sánchez1, E Díez-Tejedor, B Fuentes

  • 1Stroke Unit, Department of Neurology, Hospital Universitario La Paz, Universidad Autónoma de Madrid, Madrid, Spain.

Cerebrovascular Diseases (Basel, Switzerland)
|November 29, 2007
PubMed
Summary

Researchers are exploring new ways to improve reperfusion therapy for acute ischemic stroke. Strategies aim to extend the treatment window and enhance the effectiveness of clot-busting drugs, potentially improving patient outcomes.

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Published on: January 23, 2019

Area of Science:

  • Neurology
  • Cardiovascular Research
  • Emergency Medicine

Background:

  • Early reperfusion of blocked brain arteries is crucial for reducing stroke injury and improving outcomes.
  • Recombinant tissue plasminogen activator (t-PA) is the sole approved systemic reperfusion drug for acute ischemic stroke.
  • Current intravenous t-PA therapy is constrained by a limited therapeutic time window.

Purpose of the Study:

  • To review current human clinical investigations focused on extending systemic reperfusion in cerebral ischemia.
  • To identify and summarize emerging strategies for enhancing acute ischemic stroke treatment.

Main Methods:

  • Systematic review of ongoing human clinical studies on systemic reperfusion in cerebral ischemia.
  • Analysis of various therapeutic approaches aimed at expanding treatment options beyond conventional t-PA.

Main Results:

  • Investigated strategies include optimized t-PA use, extended rt-PA windows (up to 270 minutes), novel fibrinolytic agents (tenecteplase, microplasmin, desmoteplase, V10153), and combination therapies.
  • Combination approaches involve lytics with antithrombotics (e.g., t-PA + tirofibran, t-PA + abciximab) or neuroprotectants.
  • Other methods explored are externally applied ultrasound to boost fibrinolysis and advanced patient selection using multimodal imaging.

Conclusions:

  • Significant opportunities exist to develop safe strategies for expanding systemic reperfusion therapy.
  • Further research into these expanded approaches holds promise for improving stroke outcomes.