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Updated: May 15, 2026

Preoxygenation Techniques for Tracheal Intubation in Critically Ill Adults Utilizing Oxygen Mask and Noninvasive Ventilation
Published on: December 5, 2025
The oxygen therapy
A Corsonello1, C Pedone, S Scarlata
1Unit of Geriatric Pharmacoepidemiology, Research Hospital of Cosenza, Italian National Research Center on Aging (INRCA), C. da Muoio Piccolo, I-87100 Cosenza, Italy. andrea_corsonello@tin.it
Oxygen therapy is crucial for treating hypoxemia but requires careful management. Tailoring oxygen administration to individual needs prevents harmful hyperoxia and optimizes patient outcomes.
Area of Science:
- Physiology
- Critical Care Medicine
- Respiratory Medicine
Background:
- Oxygen (O2) is essential for metabolism; its shortage causes metabolic derangement and altered vascular tone.
- Hypoxemia leads to oxidative stress, accelerated senescence, and acute adverse effects, necessitating prompt recognition and treatment.
- Oxygen therapy is common but requires careful titration to avoid hyperoxia and hypercarbia.
Purpose of the Study:
- To emphasize the importance of tailored oxygen therapy for hypoxemia.
- To highlight the risks of hyperoxia in both newborns and adults.
- To underscore the need for comprehensive knowledge of hypoxemia pathophysiology and O2 delivery systems.
Main Methods:
- Review of pathophysiological mechanisms of hypoxemia.
- Analysis of O2 storage and delivery devices.
- Evaluation of monitoring instruments and procedures for individual O2 response.
Main Results:
- Hypoxemia necessitates prompt treatment, with oxygen therapy being the primary modality.
- Oxygen therapy must be individualized, considering patient response, sleep, and exercise.
- Hyperoxia, resulting from overcorrection of hypoxia, poses significant health risks.
Conclusions:
- Optimal oxygen therapy requires a deep understanding of hypoxemia pathophysiology and O2 delivery.
- Individualized O2 administration is key to maximizing benefits and minimizing risks like hyperoxia.
- Effective oxygen therapy integrates clinical and technical expertise for personalized patient care.
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