What Researchers Did
The researchers investigated whether indocyanine green angiography could measure the effects of hyperbaric oxygen therapy, typically administered for 30 to 40 sessions, and predict healing in chronic wounds, including diabetic foot ulcers.
What They Found
They found that chronic wound patients showed a significant increase in indocyanine green angiography perfusion immediately after hyperbaric oxygen therapy, unlike healthy controls (p < 0.03). Importantly, 100% of wounds that showed improved perfusion between the first two HBOT sessions healed within 30 days of treatment completion, compared to none in the group without improved perfusion (p < 0.01).
What This Means for Canadian Patients
For Canadian patients with diabetic foot ulcers, this study suggests that hyperbaric oxygen therapy can improve blood flow to chronic wounds. Using indocyanine green angiography could potentially help doctors identify early on which patients are most likely to benefit from HBOT, leading to more targeted and effective treatment plans.
Canadian Relevance
This study covers diabetic foot ulcers, which is a Health Canada-recognized indication for hyperbaric oxygen therapy. However, the study itself did not involve Canadian authors or institutions.
Study Limitations
A limitation of this study is its small sample size, with only 14 chronic-wound patients and 10 healthy controls enrolled.