What Researchers Did
Researchers reviewed the history, rationale, mechanisms, adverse effects, and previous study results of oxygen therapy in stroke, exploring its potential role in contemporary treatment.
What They Found
Previous trials of hyperbaric oxygen therapy, numbering three, failed to show efficacy, yet emerging data, largely from animal studies over the last 6 years, suggests that both hyperbaric and normobaric oxygen therapy could be effective if used appropriately. This raises the possibility of extending the therapeutic window for stroke thrombolysis.
What This Means for Canadian Patients
For Canadian patients experiencing a stroke, oxygen therapy remains a controversial treatment, and its routine use beyond current guidelines is not yet supported by strong clinical evidence. Future research may clarify specific situations where oxygen could be beneficial, potentially extending the time window for critical interventions like thrombolysis.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
This review article is limited by the current state of research, which largely consists of preclinical animal studies and controversial human trials with noted shortcomings.