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Clinical Application of Botulinum Toxin for Hemifacial Spasm
Chang-Kyu Park1, Seung-Hoon Lim1, Kwan Park2
1Department of Neurosurgery, Kyung Hee University College of Medicine, Seoul 02447, Republic of Korea.
Abstract:
Hemifacial spasm is typically caused by contact between the facial nerve and blood vessels. Microvascular decompression, a treatment that directly addresses this pathogenesis, is often considered the most effective treatment method. However, surgery is not immediately performed for patients at risk from the surgical treatment, or for those with an unclear diagnosis. In these instances, Botulinum toxin injection can help manage the patient's symptoms. Numerous studies corroborate the effectiveness and safety of Botulinum toxin treatment, with large-scale studies indicating symptom control lasts, on average, around 15 weeks.
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