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Updated: Jul 21, 2025

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Fabrication and Characterization of a Conformal Skin-like Electronic System for Quantitative, Cutaneous Wound Management
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Concurrent Optical- and Magnetic-Stimulation-Induced Changes on Wound Healing Parameters, Analyzed by Hyperspectral
Jürg Traber1, Thomas Wild2,3,4, Jörg Marotz5
1Venenklinik Bellevue, Brückenstrasse 9, 8280 Kreuzlingen, Switzerland.
Bioengineering (Basel, Switzerland)
|July 29, 2023
Summary
Concurrent optical and magnetic stimulation (COMS) therapy improved tissue oxygenation and reduced swelling in chronic wounds. This therapy shows promise for healing stagnant wounds unresponsive to standard care.
Area of Science:
- Biomedical Engineering
- Wound Healing Research
- Medical Imaging
Background:
- Delayed wound healing is often caused by edema and poor perfusion, linked to mitochondrial dysfunction.
- Targeting mitochondrial dysfunction offers a potential treatment strategy for non-healing wounds.
- This study explored the impact of COMS on edema and perfusion in chronic wounds.
Purpose of the Study:
- To investigate the effects of concurrent optical and magnetic stimulation (COMS) on tissue oxygenation and water index in chronic leg and foot ulcers.
- To assess the short- and long-term hemodynamic and immunomodulatory effects of COMS therapy.
- To evaluate COMS as an adjunct to Standard of Care (SOC) for therapy-refractory wounds.
Main Methods:
- A multi-center, prospective, comparative clinical trial involving eleven patients with chronic leg and foot ulcers.
- COMS therapy was administered additively to Standard of Care (SOC).
- Hyperspectral imaging was used to measure tissue oxygenation and water index before and after treatment.
Main Results:
- At 12 weeks, 64% of patients achieved near-complete wound closure and 45% achieved complete closure.
- COMS therapy increased short-term tissue oxygenation during the 8-week treatment phase.
- A decrease in tissue water content was observed post-therapy, with water levels accumulating between visits.
Conclusions:
- COMS therapy, as an adjunct to SOC, demonstrated a positive short-term impact on inflammation and tissue oxygenation in chronic wounds.
- The findings support the safety and effectiveness of COMS therapy, particularly for stagnant wounds.
- COMS may facilitate the transition from the inflammatory phase to the healing phase in chronic wounds.

