Facial hemispasm
From WikiLectures
With facial hemispasm there are involuntary unilateral, painless, spastic contractions of mimic muscles.
- typically start at the m. orbicularis oculi and descend to the mimic muscles of the face and periorally;
- atypical form: starts buccally and spreads upward;
- most often caused by compression of the REZ (root entry zone) facial nerve a. cerebelli inferior anterior.
Differential diagnosis[edit | edit source]
- facial myokymia (continuous spasm, may be a manifestation of a tumor brain stem / multiple sclerosis);
- blepharospasm;
- hemifacial spasm persists in sleep.
Treatment of facial hemispasm[edit | edit source]
- microvascular decompression n. VII (success rate 70-90%) - the main risk of surgery hearing damage (manipulation of n . VIII, necessary intraoperative monitoring BAEP), other risks are injury to the decompressed n. VII or damage to the cerebellum;
- "elderly and high-risk patients": local application of botulinum toxin to the muscle affected by the spasm, the effect lasts for about 5 months, after which the application must be repeated.
Links[edit | edit source]
Related Articles[edit | edit source]
References[edit | edit source]
- {{#switch: book
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Incomplete publication citation. SAMESH, M, et al. Neurosurgery. Prague : Jessenius Maxdorf, 2005. Template:ISBN.
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Incomplete citation of contribution in proceedings. SAMESH, M, et al. Neurosurgery. Prague : Jessenius Maxdorf, 2005. {{
#if: 80-7345-072-0 |Template:ISBN} }
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Incomplete article citation. SAMESH, M, et al. 2005, year 2005,
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Incomplete site citation. SAMESH, M, et al. Jessenius Maxdorf, ©2005.
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Incomplete carrier citation. SAMESH, M, et al. Jessenius Maxdorf, ©2005.
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Incomplete database citation. Jessenius Maxdorf, ©2005.
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