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Related Concept Videos

Self-Help Support Groups01:28

Self-Help Support Groups

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Self-help support groups are voluntary, community-based organizations that provide a platform for individuals with shared concerns to exchange support, insights, and practical strategies for coping with life challenges. Typically led by group members or paraprofessionals, these groups form a cornerstone of mental health care, especially in reaching populations that are underserved by traditional healthcare systems.
Accessibility and Cost-Effectiveness
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Support Reactions01:30

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A coplanar force system refers to a set of forces that all lie in the same plane and are subject to different reactions between the point of contact and the supports. Understanding how different types of supports affect coplanar forces is crucial for designing safe and reliable structures that can withstand external loads.
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Support reactions in three dimensions help maintain the stability and equilibrium of various structures and systems. These reactions prevent the system from translating and rotating, ensuring the design can withstand external forces and perform its intended function efficiently and safely. Some of the supports providing support reactions in three dimensions are discussed below:
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Pathophysiology of Heart Failure

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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
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Heart Failure I: Introduction01:27

Heart Failure I: Introduction

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Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
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Acute Respiratory Failure-I01:21

Acute Respiratory Failure-I

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Acute respiratory failure is a condition characterized by the inability of the lungs to perform their primary function: gas exchange. This failure leads to insufficient oxygen levels (hypoxemia) in the blood, elevated carbon dioxide levels (hypercapnia), or both, causing critical impairment in organ function.
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Related Experiment Video

Updated: Jan 24, 2026

Use of a Percutaneous Ventricular Assist Device/Left Atrium to Femoral Artery Bypass System for Cardiogenic Shock
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Percutaneous mechanical devices for supporting the left ventricular failure.

Michael Franklin1, Edward Mcgough1, Yonggang Peng1

  • 1Department of Anesthesiology, University of Florida College of Medicine, Gainesville Florida 32610-0254, USA.

Zhong Nan Da Xue Xue Bao. Yi Xue Ban = Journal of Central South University. Medical Sciences
|May 23, 2019
PubMed
Summary

Percutaneous ventricular support devices offer crucial options for end-stage heart failure when medications fail. This review covers devices like intra-aortic balloon pumps and extracorporeal membrane oxygenation, detailing their use and anesthetic considerations.

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Area of Science:

  • Cardiology
  • Medical Devices
  • Anesthesiology

Background:

  • End-stage systolic ventricular failure often necessitates mechanical support beyond pharmacological therapy.
  • Percutaneous ventricular support devices have emerged as vital tools for managing failing ventricles.

Purpose of the Study:

  • To review indications, contraindications, functionality, and complications of percutaneous ventricular support devices.
  • To examine the anesthetic implications associated with these devices.

Main Methods:

  • A comprehensive literature review was conducted using the PubMed database.
  • The review focused on percutaneous devices for left ventricular support.

Main Results:

  • Various percutaneous devices, including intra-aortic balloon pumps, TandemHeart, Impeller, and veno-arterial extracorporeal membrane oxygenation, are effective for left ventricular support.
  • These devices are typically accessed via femoral or jugular veins.

Conclusions:

  • Percutaneous ventricular support devices provide essential therapeutic options for patients with end-stage systolic ventricular failure.
  • Understanding device functionality and anesthetic effects is critical for successful patient management.