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Related Concept Videos

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure01:16

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure

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Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue,...
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Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

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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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Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

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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.
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Acute Coronary Syndrome IV: Interprofessional Care01:28

Acute Coronary Syndrome IV: Interprofessional Care

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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...
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Hypoxia01:23

Hypoxia

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Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
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Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

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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...
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Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
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Hyperbaric oxygen therapy for acute ischaemic stroke.

Michael H Bennett, Stephanie Weibel, Jason Wasiak

    The Cochrane Database of Systematic Reviews
    |November 13, 2014
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    Summary
    This summary is machine-generated.

    Hyperbaric oxygen therapy (HBOT) does not significantly improve outcomes for acute ischemic stroke patients. While some disability measures showed improvement, overall evidence is insufficient to recommend HBOT for stroke treatment.

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    Area of Science:

    • Neurology
    • Hyperbaric Medicine
    • Stroke Research

    Background:

    • Ischemic stroke, caused by impaired brain blood flow, leads to cell death due to oxygen deprivation.
    • Hyperbaric oxygen therapy (HBOT) is explored for its potential to increase oxygen supply and reduce brain swelling in stroke patients.
    • HBOT is already used in some centers for stroke treatment, necessitating a review of its efficacy.

    Purpose of the Study:

    • To evaluate the effectiveness and safety of adjunctive hyperbaric oxygen therapy (HBOT) for acute ischemic stroke.
    • To synthesize findings from randomized controlled trials (RCTs) comparing HBOT with standard care or sham treatment.

    Main Methods:

    • Systematic review and meta-analysis of 11 randomized controlled trials (RCTs) involving 705 participants.
    • Data extraction and validity assessment by three independent reviewers.
    • Analysis focused on case fatality rates and various disability/functional performance scales.

    Main Results:

    • No significant difference in 6-month case fatality rates between HBOT and control groups (RR 0.97, 95% CI 0.34 to 2.75).
    • Some measures of disability and functional performance showed statistically significant improvements with HBOT (e.g., Trouillas and Orgogozo scales).
    • Methodological quality of included trials varied, and data pooling was limited.

    Conclusions:

    • Current evidence does not strongly support the use of HBOT for improving clinical outcomes in acute ischemic stroke.
    • The existing data from 11 RCTs are insufficient for definitive practice guidelines.
    • Further research is needed to clarify the potential role and optimal application of HBOT in acute ischemic stroke management.