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KMID : 1037420070020020083
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Journal of Korean Skull Base Society
2007 Volume.2 No. 2 p.83 ~ p.85
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Transient sixth nerve paresis with the delayed onset after microvascular decompression for hemifacial spasm
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Kim Jong-Won
Park Kwan
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Abstract
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Microvascular decompression (MVD) is a safe and effective treatment for hemifacial spasm (HFS). Delayed aducens nerve paresis has been reported with extremely rare incidence as a complication of MVD. We report this rare complication and discuss its pathogenesis and the natural course. A 50-year-old woman underwent MVD for right sided hemifacial spasm. MR images showed right anterior inferior cerebellar artery (AICA) compressing with close proximity to the root exit zone of the ipsilateral facial nerve. The procedure was uneventful. However, she developed delayed sixth nerve paresis on the ipsilateral side three weeks postoperatively and it lasted for four weeks. But it spontaneously resolved after eight weeks from operation. In this case, we can recommend that the risk of transient sixth nerve paresis with the delayed onset should be considered before operation.
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KEYWORD
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Delayed abducens nerve paresis, Microvascular decompression, Hemifacial spasm, Result
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