Which modalities are commonly used for wound healing with electrotherapy and why?

• A. HVPC with appropriate polarity for healing and edema management; microcurrent to support cellular processes and tissue repair; choice depends on wound type and phase
• B. NMES is not used for wounds
• C. TENS is used for all wounds
• D. No electrical current should be used for wounds

Answer: (A)

Electrical stimulation helps wound healing by influencing the cells and fluids at the wound site. The two modalities most commonly used are HVPC and microcurrent. HVPC delivers a pulsed, high-voltage current with a polarity that you pick to support healing and edema control. In practice, you might use negative polarity to help reduce edema and inflammation in certain wounds, and switch to positive polarity when the goal is to stimulate tissue repair processes, depending on the wound’s type and healing stage. Microcurrent uses currents at levels close to the body’s own electrical signals, and is thought to enhance cellular activity—like ATP production, protein synthesis, collagen formation, and cell migration—which can boost tissue repair when healing is slow or stalled.

The choice between these approaches, along with specific parameters, hinges on the wound’s characteristics (acute vs. chronic, infected vs. clean) and which phase of healing is being targeted (inflammatory, proliferative, or remodeling). Other modalities like NMES focus more on muscle activation, and TENS is mainly used for pain modulation, so they’re not the primary options for promoting wound healing across typical wound scenarios. Not using electrical current would forgo a potential aid to healing.