Perioperative oxygen toxicity

Area of Science:

• Biochemistry
• Physiology
• Medical Guidelines

Background:

• Hyperoxia, or excessive oxygen administration, is common in the perioperative period.
• Concerns exist regarding potential adverse effects of perioperative oxygen therapy.

Purpose of the Study:

• To challenge the routine use of hyperoxia in the perioperative setting.
• To review the biochemical and physiological basis of oxygen's adverse effects.
• To critically evaluate the rationale for perioperative hyperoxia and review guidelines.

Main Methods:

• Biochemical and physiological analysis of oxygen toxicity.
• Critical evaluation of existing literature and guidelines on perioperative oxygen use.
• Review of evidence for oxygen administration in acute medical conditions.

Main Results:

• Oxygen can exert direct and indirect adverse biochemical and physiological effects.
• The evidence supporting routine perioperative hyperoxia is often weak or lacking.
• Current guidelines for oxygen use in acute conditions require careful consideration.

Conclusions:

• The use of hyperoxia in the perioperative period should be challenged.
• Clinicians should carefully weigh the risks and benefits of oxygen administration.
• Evidence-based guidelines should guide oxygen therapy to avoid potential harm.