What Researchers Did
Researchers conducted a prospective, double-blinded, placebo-controlled randomized trial to evaluate the long-term effects of hyperbaric oxygen therapy on QTc interval in diabetic patients with hard-to-heal foot ulcers.
What They Found
At the 2-year follow-up, the QTc time was significantly shorter in the hyperbaric oxygen therapy group (438ms) compared to the placebo group (453ms, p<0.05). Furthermore, fewer HBO-treated patients had a QTc time greater than 450ms (22% vs. 53%, p<0.02), primarily due to QTc prolongation in the placebo group.
What This Means for Canadian Patients
For Canadian patients with diabetes and hard-to-heal foot ulcers, hyperbaric oxygen therapy could potentially reduce the risk of QTc interval prolongation, a known risk factor for increased mortality. This suggests a potential benefit beyond wound healing for this vulnerable population.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
The study focused on a specific population of diabetic patients with hard-to-heal foot ulcers, which may limit the generalizability of the findings to other patient groups.