What is the general parameter profile for HVPC used in wound healing?

• A. High-voltage monophasic pulses with short duration (roughly 40-100 μs), skin-friendly intensity, and polarity chosen for wound stage; session lengths commonly 20-60 minutes
• B. Biphasic pulses with moderate duration and high intensity
• C. Continuous direct current with long duration
• D. Alternating current at moderate frequency

Answer: (A)

High-voltage pulsed current for wound healing relies on very short, high-peak-voltage pulses that are delivered in a monophasic form, producing a strong electrical field with minimal overall current and heating. This combination gives meaningful effects at the wound site while staying comfortable for the patient. The pulses are short in duration, typically in the tens of microseconds range, and the treatment is applied with a skin-friendly intensity so the patient can tolerate the session.

A key feature is polarity control that is chosen based on the wound’s stage. Using negative polarity on the wound bed during the inflammatory/edema-reduction phase helps drive beneficial cellular responses and edema management, while switching to positive polarity in later phases supports tissue formation and epithelialization. Sessions are commonly long enough, around 20–60 minutes, to deliver a meaningful dose without discomfort.

This profile fits HVPC because it centers on monophasic, short-duration pulses with appropriate polarity and tolerable intensity over a moderate session length. The other options describe other waveforms or continuous/current approaches (biphasic, continuous DC, or alternating current) that do not match the characteristic HVPC wound-healing protocol.