Pulsed Radiofrequency Therapy on Peripheral Nerves Monitoring Pain, Quality of Life, Patient Satisfaction and Efficacy

PRF treatment maintains a temperature below 42°C and does not produce structural tissue damage around the needle. PRF exposure to the Dorsal Root Ganglion (DRG) induces c-Fos gene expression in the dorsal horn, which suggests a cellular response to the electric forces generated within the DRG. PRF has been found to relieve neuropathic pain by inducing long-term depression of synaptic transmission in the spinal cord, leading to a decrease in allodynia and hyperalgesia. It also modulates the inflammatory response in the injured area by decreasing the expression of pro-inflammatory cytokines, such as TNF-α, in the peripheral nerve and spinal cord, which is a major player in the development and maintenance of neuropathic pain. PRF is characterized by a 500 kHz current applied for 2 pulses per second, with each pulse lasting 20 milliseconds.