What Researchers Did
Australian researchers compared three blood glucose monitoring methods in diabetic patients during HBOT at five time points across a 120-minute treatment.
What They Found
All three methods showed very high agreement, with intraclass correlation coefficients of 0.85 to 0.90. CGM and capillary readings both stayed within 1 mmol/L of venous glucose on average, with no statistically significant difference between them (p=0.81).
Canadian Relevance
Diabetic foot ulcers are an OHIP-covered indication for HBOT, and many Canadian diabetic patients use CGM devices. This study supports their continued use inside hyperbaric chambers without sacrificing monitoring accuracy.
Study Limitations
The study included only 10 patients, and larger trials are needed to confirm CGM performance across a broader range of glucose levels during HBOT.