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Related Concept Videos

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen01:16

Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen

Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
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...
Cardiopulmonary Resuscitation II: ACLS Airway Management01:22

Cardiopulmonary Resuscitation II: ACLS Airway Management

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 under...
Physiological Control of Respiration01:23

Physiological Control of Respiration

Introduction
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Oxygen Delivering System I: Nasal Cannula and Face Mask01:26

Oxygen Delivering System I: Nasal Cannula and Face Mask

The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
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.
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Related Experiment Video

Updated: Jun 6, 2026

Preoxygenation Techniques for Tracheal Intubation in Critically Ill Adults Utilizing Oxygen Mask and Noninvasive Ventilation
07:15

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

Published on: December 5, 2025

One-lung ventilation and arterial oxygenation.

Seiji Ishikawa1, Jens Lohser

  • 1Department of Anesthesia, Vancouver Acute, Vancouver General Hospital, Vancouver, Canada. Seiji.Ishikawa@vch.ca

Current Opinion in Anaesthesiology
|November 19, 2010
PubMed
Summary
This summary is machine-generated.

Hypoxemia during one-lung ventilation (OLV) remains a concern, affecting 10% of cases. Recent surgical changes and new treatments like recruitment maneuvers offer evolving strategies for managing oxygenation during OLV.

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Normothermic Negative Pressure Ventilation Ex Situ Lung Perfusion: Evaluation of Lung Function and Metabolism
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Normothermic Negative Pressure Ventilation Ex Situ Lung Perfusion: Evaluation of Lung Function and Metabolism

Published on: February 14, 2022

Related Experiment Videos

Last Updated: Jun 6, 2026

Preoxygenation Techniques for Tracheal Intubation in Critically Ill Adults Utilizing Oxygen Mask and Noninvasive Ventilation
07:15

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

Published on: December 5, 2025

Normothermic Negative Pressure Ventilation Ex Situ Lung Perfusion: Evaluation of Lung Function and Metabolism
09:31

Normothermic Negative Pressure Ventilation Ex Situ Lung Perfusion: Evaluation of Lung Function and Metabolism

Published on: February 14, 2022

Area of Science:

  • Anesthesiology
  • Thoracic Surgery
  • Critical Care Medicine

Background:

  • Hypoxemia during one-lung ventilation (OLV) occurs in approximately 10% of patients.
  • Surgical techniques and patient positioning can influence oxygenation during OLV.

Purpose of the Study:

  • To review recent developments impacting the incidence and treatment of hypoxemia during OLV.
  • To discuss evolving surgical practices and their effect on oxygenation.
  • To explore current and emerging treatment strategies for hypoxemia during OLV.

Main Methods:

  • Review of recent literature on hypoxemia during OLV.
  • Analysis of the impact of surgical techniques (e.g., supine position, thoracoscopy) on oxygenation.
  • Discussion of treatment options including recruitment maneuvers and pharmacologic agents.
  • Evaluation of predictive methods like capnometry.
  • Review of controversies regarding epidural anesthesia, ventilation, and gravity.

Main Results:

  • Increased use of the supine position may increase hypoxemia risk.
  • Thoracoscopic techniques may limit treatment options.
  • Recruitment maneuvers and certain drugs (dexmedetomidine, epoprostenol) are discussed as treatments.
  • Capnometry may predict hypoxemia severity.
  • Controversies persist regarding epidural anesthesia, ventilation, and gravity's effects.

Conclusions:

  • Emerging concepts from case reports and small studies offer insights into hypoxemia management during OLV.
  • Definitive evidence on optimal ventilatory strategies is still lacking.
  • The concept of end-organ effects during OLV presents a promising area for future research and clinical practice.