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KMID : 0363120130260010062
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Korean Journal of Pain
2013 Volume.26 No. 1 p.62 ~ p.64
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Intractable Hemifacial Spasm Treated by Pulsed Radiofrequency Treatment
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Park Hae-Lang
Lim Seung-Mo
Kim Tae-Hwa
Kang Kyung-Ho
Kang Hyun
Jung Yong-Hun
Baek Chong-Wha
Woo Young-Cheol
Kim Jin-Yun
Koo Gill-Hoi
Shin Hwa-Yong
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Abstract
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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.
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KEYWORD
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facial nerve, hemifacial spasm, pulsed radiofrequency treatment
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