Departments of Anesthesiology and Pain Medicine, *Surgery, College of Medicine, Chung-Ang University, Seoul, Korea
Hae Lang Park, MD, Seung Mo Lim, MD, Tae Hwa Kim, MD, Kyung Ho Kang, MD*, Hyun Kang, MD, Yong Hun Jung, MD, Chong Wha Baek, MD, Young Cheol Woo, MD,Jin Yun Kim, MD, Gill Hoi Koo, MD, and Hwa Yong Shin, MD
Korean J Pain 2013 January; Vol. 26, No. 1: 62-64
pISSN 2005-9159 eISSN 2093-0569
Hemifacial spasm is defined as unilateral, involuntary, irregular twitching of all or parts of the muscles innervated by facial nerves. Here, we present a case of recurrent hemifacial spasm after microvascular decompression (MVD) treated with pulsed radiofrequency (PRF) treatment with good results. A 35-year-old woman suffered from recurrent hemifacial spasm after MVD that was refractory to medical treatment and botulinum toxin injections. We attempted a left facial nerve block twice. Then, we applied PRF at a maximum temperature of 42oC for 120 sec. Some response was observed, so we applied PRF two additional times. The frequency of twitch decreased from 3−4 Hz to ＜ 0.5 Hz, and subjective severity on a visual analogue scale also decreased from 10/10 to 2−3/10. PRF treatment might be an effective medical treatment for refractory hemifacial spasm and has fewer complications and is less invasive compared with those of surgery. (Korean J Pain 2013; 26: 62-64)
facial nerve, hemifacial spasm, pulsed radiofrequency treatment.