From:  Hyperbaric oxygen therapy: a new frontier in cellular protection for type 2 diabetes

 Clinical outcomes of HBOT interventions.

ConditionNumber of patientsDuration of HBOTOutcomeRef.
T2D/Wagner grades I–III foot ulcers15Twice a day, 5 days a week for 2 weeksThe size of the ulcers decreased significantly[32]
Diabetes mellitus/diabetic foot ulcers18Twice a day, 5 days a week for 2 weeksUlcer size reduction
↑Malondialdehyde
↑Superoxide dismutase
↑Catalase
[33]
Stages III and IV diabetic foot ulcers2010 weeks60% of ulcers showed complete healing[34]
Chronic diabetic foot wounds (grade II or III on Wagner)1520–40 sessionsMedian ulcer surface area significantly reduced[35]
T1D/T2D/Wagner grades III and IV foot ulcers3010–30 sessions7 patients—finger amputations
3 patients—foot amputations
4 patients—below-knee amputation
[36]
T1D1910 sessionsReduction of inflammation (decreased inducible nitric oxide synthase)[26]
T1D2410 sessionsImproved lipid profile[27]

HBOT: hyperbaric oxygen therapy; T1D: type 1 diabetes; T2D: type 2 diabetes.