What Researchers Did
Researchers randomly assigned 20 migraine patients to receive either normobaric or hyperbaric oxygen during a headache attack to compare their effects on headache severity.
What They Found
Only 1 out of 10 patients (10%) in the normobaric oxygen group experienced significant headache relief, compared to 9 out of 10 patients (90%) in the hyperbaric oxygen group (P < .005). Furthermore, all 9 patients who did not respond to normobaric oxygen subsequently found significant relief when treated with hyperbaric oxygen.
Canadian Relevance
This study has no direct Canadian connection as it was not conducted in Canada, nor did it involve Canadian researchers or patients.
Study Limitations
A key limitation of this preliminary report is the small sample size of only 20 patients, which limits the generalizability of the findings.