Efficacy of Higher-Voltage Long-Duration Pulsed Radiofrequency for Spinal Zoster-Associated Pain: A Randomized Controlled Trial.

High-voltage (65 V) long-duration pulsed radiofrequency (HL-PRF) is an effective method for managing zoster-associated pain (ZAP), though the limited efficacy of and high recurrence rates associated with the procedure present concerns.