Galvanic stimulation is most useful in acute injuries associated with major tissue trauma with bleeding or swelling. In contrast to TENS and IFC units, which apply alternating current, galvanic stimulators apply direct current.
High-voltage Pulsed Galvanic Stimulation (HVPGS) is being used for wound healing, edema reduction and pain relief carpal tunnel syndrome and diabetic neuropathy are examples of where galvanic stimulation is used.
Direct current creates an electrical field over the treated area that, theoretically, changes blood flow. The positive pad behaves like ice, causing reduced circulation to the area under the pad and reduction in swelling. The negative pad behaves like heat, causing increased circulation, reportedly speeding healing. The Galvanic Stimulator (direct current) is the best modality for iontophoresis treatments and comes with 1 year warranty against mechanical defects.
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