What Researchers Did
Researchers conducted a literature review to evaluate the therapeutic effect of oxygen treatment for cluster headache, analyzing 11 relevant studies including five randomized controlled trials.
What They Found
Low-flow oxygen (6-7 l/min) demonstrated positive responses in 56%, 75%, and 82% of patients across three studies. High-flow oxygen (12 l/min) was effective in 78% of attacks in one study. Hyperbaric oxygen therapy showed an acute, but not prophylactic, effect.
What This Means for Canadian Patients
Canadian patients experiencing cluster headache attacks may find oxygen therapy to be an effective and safe treatment option. However, access to oxygen can sometimes be challenging due to logistical and financial barriers.
Canadian Relevance
This review did not include any studies specifically conducted in Canada or with Canadian participants.
Study Limitations
A limitation of the evidence base is the scarcity of high-quality randomized controlled trials investigating oxygen treatment for cluster headache.