High-voltage pulsed stimulation may be used as an adjunct tx in controlling acute and chronic pain through what 2 mechanisms?

High-voltage pulsed stimulation may be used as an adjunct tx in controlling acute and chronic pain through what 2 mechanisms?

• A. Gate control and opiate release mechanisms
• B. Muscle strengthening and improved circulation
• C. Thermal effects and tissue healing
• D. Nerve conduction slowing and edema reduction

Answer: (A)

Pain relief from high-voltage pulsed stimulation works through two neural pathways that modulate how pain signals are processed. First, the gate control mechanism: stimulation activates large-diameter A-beta fibers, which in turn activate inhibitory interneurons in the spinal cord dorsal horn and dampen transmission of pain signals from smaller A-delta and C fibers. This effectively “closes the gate” on pain at the spinal level. Second, the endogenous opioid mechanism: electrical stimulation can trigger the release of the body’s own opioids (like endorphins and enkephalins) in the brain and spinal cord, producing analgesia by binding to opioid receptors and reducing pain perception. These two pathways together explain how HVPC can help control both acute and chronic pain. Secondary effects like changes in circulation or tissue healing may accompany treatment, but they are not the primary analgesic mechanisms described here.

Pain relief from high-voltage pulsed stimulation works through two neural pathways that modulate how pain signals are processed. First, the gate control mechanism: stimulation activates large-diameter A-beta fibers, which in turn activate inhibitory interneurons in the spinal cord dorsal horn and dampen transmission of pain signals from smaller A-delta and C fibers. This effectively “closes the gate” on pain at the spinal level. Second, the endogenous opioid mechanism: electrical stimulation can trigger the release of the body’s own opioids (like endorphins and enkephalins) in the brain and spinal cord, producing analgesia by binding to opioid receptors and reducing pain perception. These two pathways together explain how HVPC can help control both acute and chronic pain. Secondary effects like changes in circulation or tissue healing may accompany treatment, but they are not the primary analgesic mechanisms described here.