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Research Insights

HBOT Indexed Studies by Research Category

How the 14,529-study database distributes across condition research areas. Ordered by the number of indexed studies, a neutral bibliographic measure.

Research volume is not effectiveness, and this is not a ranking of "best" uses. A category with many indexed studies may have mixed or inconclusive findings; a category with few studies may have strong consensus in a small evidence base. Categories marked Investigational are uses where HBOT is not an established, Health Canada-recognised indication, and research volume there is not a basis for seeking treatment. For what is recognised and covered, see the conditions pages.

Indexed studies by research category

Problem Wounds 2,271 studies
56 Canadian-led 4 in Cochrane reviews
Neurological (TBI, stroke, others) Investigational 2,163 studies
51 Canadian-led 9 in Cochrane reviews
Radiation Injury 1,150 studies
31 Canadian-led 11 in Cochrane reviews
Decompression Sickness 1,094 studies
23 Canadian-led 1 in Cochrane reviews
Gas Gangrene / Necrotising Infection 1,067 studies
7 Canadian-led 4 in Cochrane reviews
Carbon Monoxide Poisoning 849 studies
6 Canadian-led
Cardiac Investigational 447 studies
7 Canadian-led 1 in Cochrane reviews
Sudden Sensorineural Hearing Loss 397 studies
6 Canadian-led 2 in Cochrane reviews
Central Retinal Artery Occlusion 321 studies
3 Canadian-led
Aging and Longevity Investigational 226 studies
4 Canadian-led 2 in Cochrane reviews
Thermal Burns 82 studies
1 Canadian-led 1 in Cochrane reviews
COVID-19 / Long COVID Investigational 67 studies
2 Canadian-led
Crush Injury 58 studies
1 Canadian-led

Excludes uncategorised records and systematic-review collections. Recognition status follows Health Canada; see the conditions pages for clinical detail.

Data generated June 27, 2026; updated weekly. How this data is produced.