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KMID : 0614720090520080807
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Journal of Korean Medical Association
2009 Volume.52 No. 8 p.807 ~ p.818
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Facial Nerve Paralysis and Surgical Management
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Lee Won-Sang
Kim Jin
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Abstract
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The facial nerve coursing through the temporal bone provides a challenge to the otologic surgeon. Advances in surgical instrumentation and refinements of surgical strategies enable the otologist to uncover the entire course of the facial nerve safely from brainstem to its exit from temporal bone. The most common cause of facial nerve paralysis is Bell’s palsy, followed by traumatic facial paralysis, herpes zoster oticus, and intratemporal tumous lesion. The surgical approaches to the injured facial nerve depend on its causes. Acute, severe facial nerve paralysis caused by viral infection or trauma can be managed by early use of transmastoid approach, middle cranial approach, or combined approach. In case of intratemporal benign tumor with favorable facial function, great care must be taken not to damage the facial nerve with nerve preservation technique. However, in malignant tumor with favorable facial function, the priority must be placed on the complete resection than to the facial nerve preservation. In consideration of selecting surgical technique of facial nerve paralysis reconstruction, clinician must find out the cause, degree and duration of paralysis for the appropriate technique.
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KEYWORD
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Facial nerve paralysis, Decompression, Preservation, Facial nerve reconstruction
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