What Researchers Did
The study evaluated the contribution of basal and modified transcutaneous oxygen tension (TcpO2) measurement to diagnose ischaemia and indicate angiography in 69 patients with non-healing diabetic foot ulcers.
What They Found
Clinically important angiographic findings were present in 80% (61/76) of ulcers. Basal TcpO2 <= 30 mm Hg showed 82% sensitivity for positive angiography, with 60% specificity and 78% accuracy. TcpO2 with hyperbaric 100% O2 was the strongest predictor of ischaemia, demonstrating 91% sensitivity, 77% specificity, and 88% accuracy (cut-off 270 mmHg).
What This Means for Canadian Patients
This research suggests that measuring transcutaneous oxygen tension, especially under hyperbaric conditions, could help identify ischaemia in Canadian patients with non-healing diabetic foot ulcers. This diagnostic tool may guide decisions for angiography, potentially improving treatment pathways for limb preservation.
Canadian Relevance
This study was not conducted in Canada and does not have a direct Canadian connection.
Study Limitations
The study's findings are based on a relatively small cohort of 69 patients from a single center, which may limit generalizability.