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Related Concept Videos

Mechanical Ventilation II: Invasive Ventilation01:23

Mechanical Ventilation II: Invasive Ventilation

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...
Ventilatory Modes01:14

Ventilatory Modes

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...
Mechanical Ventilation I: Indication and Settings01:29

Mechanical Ventilation I: Indication and Settings

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...
Mechanical Ventilation III: Noninvasive Ventilation01:23

Mechanical Ventilation III: Noninvasive Ventilation

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 (NIPPV)
Pressure Relationships in Thoracic Cavity01:24

Pressure Relationships in Thoracic Cavity

Breathing, otherwise known as pulmonary ventilation, is the process of air movement into and out of the lungs. The main mechanisms propelling pulmonary ventilation are atmospheric pressure (Patm), intra-pulmonary (Ppul ) or intra-alveolar pressure (Palv) within the alveoli, and intrapleural pressure (Pip) within the pleural cavity.
Breathing Mechanisms
Both intra-alveolar and intrapleural pressures rely on specific lung properties. The ability to breathe—allowing air to enter the lungs during...
Pulmonary Ventilation: Inhalation01:24

Pulmonary Ventilation: Inhalation

Pulmonary ventilation is a vital process that ensures the exchange of oxygen and carbon dioxide in the lungs. It refers to the movement of air into and out of the lungs, enabling the body to obtain oxygen and remove waste carbon dioxide. In this article, we will explore the intricacies of pulmonary ventilation, including its underlying principles, mechanisms, and the interplay of pressures within the respiratory system.
Boyle's law becomes particularly pertinent when examining respiratory...

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Related Experiment Video

Updated: May 15, 2026

Measuring Pressure Volume Loops in the Mouse
09:15

Measuring Pressure Volume Loops in the Mouse

Published on: May 2, 2016

Pressure versus volume controlled modes in invasive mechanical ventilation.

A J Garnero1, H Abbona, F Gordo-Vidal

  • 1Associated Health Professionals, Culver City, CA, USA.

Medicina Intensiva
|December 25, 2012
PubMed
Summary

This review contrasts pressure-controlled and volume-controlled mechanical ventilation, detailing their pros and cons. It highlights the evolution of ventilator technology and its impact on preventing lung injury.

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Preoxygenation Techniques for Tracheal Intubation in Critically Ill Adults Utilizing Oxygen Mask and Noninvasive Ventilation
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Preoxygenation Techniques for Tracheal Intubation in Critically Ill Adults Utilizing Oxygen Mask and Noninvasive Ventilation

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Last Updated: May 15, 2026

Measuring Pressure Volume Loops in the Mouse
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Measuring Pressure Volume Loops in the Mouse

Published on: May 2, 2016

Preoxygenation Techniques for Tracheal Intubation in Critically Ill Adults Utilizing Oxygen Mask and Noninvasive Ventilation
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Preoxygenation Techniques for Tracheal Intubation in Critically Ill Adults Utilizing Oxygen Mask and Noninvasive Ventilation

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Area of Science:

  • Critical Care Medicine
  • Respiratory Physiology
  • Biomedical Engineering

Background:

  • Early mechanical ventilators used pressure control but lacked tidal volume regulation.
  • Volume control ventilators emerged to normalize arterial blood gases.
  • Renewed interest in pressure control arose from studies linking high pressures to ventilator-induced lung injury.

Purpose of the Study:

  • To review pressure and volume control in mechanical ventilation.
  • To detail advantages and disadvantages of different ventilatory modes.
  • To provide an evidence-based overview of current mechanical ventilation strategies.

Main Methods:

  • Literature review of mechanical ventilation modes.
  • Analysis of historical and current evidence on pressure and volume control.
  • Synthesis of data on ventilator-induced lung injury prevention.

Main Results:

  • Pressure-controlled ventilation allows for lung-protective strategies.
  • Volume-controlled ventilation ensures consistent tidal volumes.
  • Both modes have distinct benefits and drawbacks depending on patient condition.

Conclusions:

  • Mechanical ventilator technology has evolved significantly.
  • Understanding ventilatory modes is crucial for preventing lung injury.
  • Evidence-based selection of ventilation modes optimizes patient outcomes.