• Hae Gyun Park, Pyung Gul Park, Won Joong Kim, Yong Hee Park, Hyun Kang, Chong Wha Baek, Yong Hun Jung, Young Cheol Woo, Gill Hoi Koo, and Hwa Yong Shin.
• Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University, Seoul, Korea.
• Korean J Pain. 2014 Jan 1;27(1):81-5.

AbstractPostherpetic neuralgia (PHN) is one of the most difficult pain syndromes to treat. Invasive treatments may be considered when patients fail to obtain adequate pain relief from noninvasive treatment approaches. Here, we present three cases of PHN in the mandibular branch treated with ultrasound-assisted mental nerve block and pulsed radiofrequency treatment. None of the patients had adequate pain relief from the medical therapy, so we performed the mental nerve block on the affected side under ultrasound assistance. Two patients showed satisfactory pain relief continuously over 12 months without any further interventions, whereas one patient only had short-term pain relief. For the patient had short-term pain relief we performed pulsed radiofrequency treatment (PRFT) on the left mental nerve under ultrasound assistance. After PRFT, the patient had adequate pain relief for 6 months and there was no need for further management.

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