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Related Concept Videos

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

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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.
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Oxygen delivery is critical in clinical care, especially for patients with respiratory disorders or those undergoing surgical procedures. Various systems, such as tracheostomy and the T-piece, deliver oxygen to the lungs, ensuring adequate arterial oxygenation.
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Oxygen Delivering System I: Nasal Cannula and Face Mask01:26

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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.
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Endoscopic Studies II: Thoracocentesis01:26

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Thoracentesis(Thoracocentesis), commonly known as pleural tap, is a medical procedure where a 22 gauge needle is inserted into the pleural space, the area between the lung and chest wall. This procedure is commonly performed to diagnose or treat various respiratory disorders.
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Acute Respiratory Failure-II01:21

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Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
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Administering Oxygen by Mask01:30

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Administering Oxygen by Mask
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Related Experiment Video

Updated: Jan 9, 2026

Topical Airway Anesthesia for Awake-endoscopic Intubation Using the Spray-as-you-go Technique with High Oxygen Flow
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High-Flow Oxygen Does Not Improve Oxygenation during Rigid Medical Thoracoscopy.

Andrei M Darie1,2, Leticia Grize3, Kathleen Jahn1

  • 1Clinic of Respiratory Medicine, University Hospital Basel, Basel, Switzerland.

Respiration; International Review of Thoracic Diseases
|December 1, 2025
PubMed
Summary
This summary is machine-generated.

High-flow oxygen therapy during medical thoracoscopy provides similar oxygen saturation levels compared to conventional oxygen. This finding suggests high-flow nasal oxygen is a viable alternative for maintaining oxygenation during this procedure.

Keywords:
High flowInterventional pneumologyThoracoscopy

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Area of Science:

  • Pulmonology
  • Critical Care Medicine
  • Anesthesiology

Background:

  • Sedation for rigid medical thoracoscopy can lead to hypoventilation and hypoxemia.
  • High-flow oxygen has previously reduced hypoxemia during flexible bronchoscopy.

Purpose of the Study:

  • To compare conventional oxygen with high-flow nasal oxygen during sedation for rigid medical thoracoscopy.
  • To evaluate the impact on oxygen saturation (SpO2) and carbon dioxide levels.

Main Methods:

  • Investigator-initiated randomized controlled trial.
  • 36 patients undergoing medical thoracoscopy were randomized.
  • Compared conventional oxygen (4 L/min) to high-flow nasal oxygen (60 L/min, 60% O2).
  • Primary endpoint: mean nadir SpO2.

Main Results:

  • Nadir SpO2 was 88.3% with high-flow vs. 85.0% with conventional oxygen (p=0.20).
  • Average SpO2 was similar between groups (96.3% vs. 96.2%, p=0.81).
  • A trend towards higher peak end-tidal CO2 was observed in the conventional oxygen group.

Conclusions:

  • Nasal high-flow oxygen supplementation offers comparable SpO2 to conventional nasal oxygen during medical thoracoscopy.
  • High-flow oxygen is a suitable alternative for oxygenation during this procedure.