Using a prognostic medical device for early identification of pressure ulcers: protocol for study design

Area of Science:

• Medical device technology
• Clinical trial methodology
• Wound care research

Background:

• Pressure ulcers pose a significant challenge in healthcare settings.
• Early detection of pressure ulcer development is crucial for prevention.
• Current research is limited by clinical practice variations and patient confounders.

Purpose of the Study:

• To outline considerations for a study protocol assessing prognostic medical devices for pressure ulcer reduction.
• To address efficacy, safety, comparators, randomization, sample size, ethics, and practical issues.
• To support future wound care trials with a theoretical protocol.

Main Methods:

• A prospective, three-armed, multi-centre, stratified cluster-randomised controlled trial is proposed.
• The protocol includes considerations for patient repositioning as a preventive strategy.
• A minimum sample size of 16,200 patients across 33 wards is estimated for statistical significance.

Main Results:

• The proposed study design accounts for potential biases, including inter-operator and inter-device reliability.
• Challenges include user heterogeneity and the interpretation of device results.
• The study necessitates large sample sizes for robust evaluation.

Conclusions:

• Rigorous research on prognostic medical devices can significantly impact pressure ulcer prevention policies.
• Addressing methodological and ethical issues is vital for successful clinical trials.
• Effective implementation of these devices could transform secondary care practices.