Research progress on high-concentration oxygen therapy after cerebral hemorrhage

Area of Science:

• Neurology
• Critical Care Medicine
• Biomedical Engineering

Background:

• Cerebral hemorrhage leads to secondary ischemia and hypoxia, significantly impacting patient outcomes.
• High-concentration oxygen therapy is increasingly explored as a therapeutic intervention for managing these secondary insults.

Purpose of the Study:

• To review current research on high-concentration oxygen therapy following cerebral hemorrhage.
• To elucidate the mechanisms and potential benefits of both hyperbaric and normobaric high-concentration oxygen therapy.

Main Methods:

• Literature review of studies investigating high-concentration oxygen therapy in cerebral hemorrhage models and patients.
• Analysis of molecular mechanisms, including Hypoxia-inducible factor 1-alpha (HIF-1α), vascular endothelial growth factor, and erythropoietin (EPO).

Main Results:

• High-concentration oxygen therapy can improve cerebral oxygenation, metabolic rate, and reduce cerebral edema, intracranial pressure, and oxidative stress.
• Evidence suggests that controlled administration within specific parameters can avoid hyperoxic toxicity.

Conclusions:

• High-concentration oxygen therapy demonstrates a positive role in mitigating injury and improving outcomes in cerebral hemorrhage.
• Expansion of normobaric high-concentration oxygen therapy for cerebral hemorrhage is recommended, provided careful patient monitoring and adherence to treatment windows.