研究目的
To assess the usefulness of monthly thermography and standard foot care to reduce diabetic foot ulcer recurrence in people with diabetes, neuropathy, and a history of foot ulcers.
研究成果
Monthly intervention with thermal imaging did not significantly reduce ulcer recurrence rate or increase ulcer-free survival in high-risk diabetic patients. However, the trial informed the design of a refined study with longer follow-up and group stratification to further assess thermography's efficacy.
研究不足
The study was limited by the monthly interval of thermography, potential mild arterial disease in participants not entirely ruled out by pulse palpation, inability to monitor physical activity of participants, and the possibility that not all participants wore their prescribed footwear. Additionally, the high baseline risk of ulcer recurrence in participants may have offset any predictive value of infrared thermography.
1:Experimental Design and Method Selection:
A single-blind multicentre clinical trial was conducted to evaluate the utility of a novel thermal imaging device in reducing foot ulcer recurrence. Participants were randomized to either intervention (active thermography + standard foot care) or control (blinded thermography + standard foot care) groups.
2:Sample Selection and Data Sources:
Participants were aged ≥18 years with type 1 or type 2 diabetes, neuropathy, and a history of ≥1 foot ulcer. They were followed up monthly until ulcer recurrence or for 12 months.
3:List of Experimental Equipment and Materials:
The thermal imaging device (Diabetic Foot Ulcer Prevention System) was used for imaging. The device includes a standard digital colour camera and a digital infrared camera.
4:Experimental Procedures and Operational Workflow:
Feet were imaged after barefoot rest for 10 min. Hot spots (temperature difference ≥2.2°C) were identified and managed as per local standards.
5:2°C) were identified and managed as per local standards.
Data Analysis Methods:
5. Data Analysis Methods: Logistic and Cox regression analyses were used to model the likelihood of ulcer recurrence and time to ulcer recurrence, respectively.
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