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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 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)
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...
Assessment of Ventilation II: Respiratory Depth and Rhythm01:29

Assessment of Ventilation II: Respiratory Depth and Rhythm

Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
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...

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Related Experiment Video

Updated: May 28, 2026

A Microfluidic Model of Biomimetically Breathing Pulmonary Acinar Airways
09:39

A Microfluidic Model of Biomimetically Breathing Pulmonary Acinar Airways

Published on: May 9, 2016

Liquid ventilation.

Qutaiba A Tawfic1, Rajini Kausalya

  • 1Department of Anesthesiology and Intensive Care, Sultan Qaboos University Hospital, Muscat, Sultanate of Oman.

Oman Medical Journal
|November 2, 2011
PubMed
Summary

Liquid ventilation (LV) uses oxygenated perfluorochemical liquids to fill lungs, offering advantages over gas ventilation for acute lung injury. This technique also shows potential for drug delivery and imaging.

Area of Science:

  • Pulmonary Medicine
  • Biomedical Engineering
  • Respiratory Physiology

Background:

  • Mammalian lungs are adapted for gas exchange, not liquid breathing.
  • Increased surface tension in acute lung injury (ALI) impairs ventilation.
  • Liquid ventilation (LV) is explored as an alternative to gas ventilation.

Purpose of the Study:

  • To investigate liquid ventilation (LV) as a therapeutic strategy for acute lung injury (ALI).
  • To explore the advantages of perfluorochemicals in liquid ventilation.
  • To examine non-respiratory applications of liquid ventilation.

Main Methods:

  • Lungs are insufflated with oxygenated perfluorochemical liquids instead of gas mixtures.
  • Perfluorochemicals serve as an inert carrier for oxygen and carbon dioxide.
Keywords:
Liquid ventilationperfluorocarbonperfluorochemicalsrespiratory distresssurfactant

Related Experiment Videos

Last Updated: May 28, 2026

A Microfluidic Model of Biomimetically Breathing Pulmonary Acinar Airways
09:39

A Microfluidic Model of Biomimetically Breathing Pulmonary Acinar Airways

Published on: May 9, 2016

  • Evaluation of theoretical benefits for ALI treatment.

    • Main Results:

    • Perfluorochemicals offer theoretical advantages over nitrogen for gas exchange in LV.
    • Liquid ventilation may reduce surface tension and improve ventilation in ALI.
    • Potential for non-respiratory applications like pulmonary drug delivery and imaging.

    Conclusions:

    • Liquid ventilation presents a promising alternative for managing acute lung injury.
    • Perfluorochemical-based liquid ventilation has potential clinical applications beyond respiratory support.
    • Further research is needed to optimize and clarify the clinical utility of liquid-assisted ventilation.