What Researchers Did
Patients with diabetes and chronic foot ulcers were randomized to receive either hyperbaric oxygen therapy (HBOT) or sham treatment, in addition to comprehensive wound care, to assess its efficacy in reducing major amputation and improving wound healing.
What They Found
At 12 weeks, criteria for major amputation were met in 13 of 54 patients (24%) in the sham group and 11 of 49 patients (22%) in the HBOT group, showing no statistically significant difference (odds ratio 0.91, P = 0.846). Similarly, wound healing occurred in 12 (22%) patients in the sham group and 10 (20%) in the HBOT group, also without a significant difference (P = 0.823).
What This Means for Canadian Patients
Canadian patients with diabetic foot ulcers may not benefit from hyperbaric oxygen therapy as a means to prevent major amputation or improve wound healing. This suggests that resources might be better directed towards other proven comprehensive wound care strategies.
Canadian Relevance
This study was conducted in Canada, making its findings directly relevant to Canadian healthcare practices and patient populations.
Study Limitations
The study's findings are specific to patients with Wagner grade 2-4 diabetic foot lesions and a 12-week follow-up, which may limit generalizability to other ulcer severities or longer-term outcomes.