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Related Concept Videos

Mechanical Ventilation II: Invasive Ventilation01:23

Mechanical Ventilation II: Invasive Ventilation

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Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...
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Mechanical Ventilation I: Indication and Settings01:29

Mechanical Ventilation I: Indication and Settings

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Mechanical ventilation is a life-saving technique for managing acute respiratory failure and other respiratory complications. The process involves using a machine known as a ventilator to supply oxygen to the lungs and assist in removing carbon dioxide. It serves as a bridge to long-term mechanical ventilation or a temporary measure until ventilatory support is discontinued. The ventilator can maintain this function for a prolonged period, providing critical support for patients until they can...
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Ventilatory Modes01:14

Ventilatory Modes

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Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
346
Cardiopulmonary Resuscitation II: ACLS Airway Management01:22

Cardiopulmonary Resuscitation II: ACLS Airway Management

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Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned...
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Mechanical Ventilation III: Noninvasive Ventilation01:23

Mechanical Ventilation III: Noninvasive Ventilation

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Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation...
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Acute Respiratory Failure-V01:29

Acute Respiratory Failure-V

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The treatment for acute respiratory failure varies based on factors like the underlying cause, overall health, and severity. A collaborative healthcare team is essential for early detection, often through arterial blood gas analysis. Identifying the cause is the primary goal, with treatment strategies adjusted for ventilation/perfusion (V/Q) mismatch, shunting, or diffusion impairment.
Ensure that patients are monitored continuously for their response to therapy, including changes in...
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Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome ARDS
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Mechanical Ventilation in ARDS With an Automatic Resuscitator.

Mayson LA Sousa1,2,3, Bhushan H Katira3, Doreen Engelberts3

  • 1Keenan Centre for Biomedical Research, Critical Care Department, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada.

Respiratory Care
|November 11, 2022
PubMed
Summary
This summary is machine-generated.

The Oxylator, an oxygen-powered automatic resuscitator, proved feasible and safe for short-term mechanical ventilation in an animal model of acute respiratory distress syndrome (ARDS). This device offers a potential solution where standard ventilators are unavailable.

Keywords:
artificial respirationmechanical ventilatorsrescue ventilationrespiratory distress syndromerespiratory insufficiencyventilator-induced lung injury

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Area of Science:

  • Critical Care Medicine
  • Respiratory Physiology
  • Biomedical Engineering

Background:

  • Acute respiratory distress syndrome (ARDS) necessitates mechanical ventilation, but standard equipment is often unavailable in critical situations.
  • The Oxylator is an oxygen-powered automatic resuscitator designed for use without electricity, offering a potential alternative for acute respiratory failure.
  • This study evaluated the feasibility and safety of the Oxylator for mechanical ventilation in an ARDS animal model.

Purpose of the Study:

  • To assess the feasibility and safety of using the Oxylator automatic resuscitator for mechanical ventilation.
  • To compare respiratory mechanics, gas exchange, and hemodynamics between the Oxylator group and a conventional ventilator group in a porcine ARDS model.

Main Methods:

  • A randomized experimental study was conducted on 12 pigs with induced ARDS, divided into Oxylator and control groups (6 pigs each).
  • Ventilation was maintained for 4 hours, with specific pressure settings for the Oxylator group and protective settings for the control group.
  • Key endpoints included feasibility, safety, respiratory mechanics (compliance, driving pressure), gas exchange (PaO2/FiO2, PaCO2), and hemodynamics.

Main Results:

  • The Oxylator group demonstrated comparable respiratory compliance and PaO2/FiO2 ratios to the control group.
  • While tidal volume was transiently higher in the Oxylator group, it stabilized at 6 mL/kg, and plateau pressures remained below 30 cm H2O.
  • The Oxylator group showed a higher PaCO2 and increased breathing frequency, but no significant differences in hemodynamics were observed between groups.

Conclusions:

  • Short-term mechanical ventilation using the Oxylator automatic resuscitator with fixed pressure settings is feasible and safe in an ARDS animal model.
  • The Oxylator presents a viable option for mechanical ventilation in resource-limited settings or when standard ventilators are inaccessible.
  • Further research may explore long-term effects and clinical applications of this oxygen-powered device.