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  • Title: Facial canal decompression leads to recovery of combined facial nerve paresis and trigeminal sensory neuropathy: case report.
    Author: Litofsky NS, Megerian CA.
    Journal: Surg Neurol; 1999 Feb; 51(2):198-201. PubMed ID: 10029428.
    Abstract:
    BACKGROUND: Trigeminal sensory neuropathy is often associated with facial idiopathic nerve paralysis (Bell's palsy). Although a cranial nerve viral polyneuropathy has been proposed as the usual cause, in many instances the etiology remains unclear. This case report of recovery of both trigeminal and facial neuropathy after surgical decompression of the facial nerve suggests an anatomic link. METHODS: A case of a 39-year-old woman presenting with recurrent unilateral facial paralysis is summarized. Her fifth episode, which did not spontaneously recover, was associated with retroorbital and maxillary pain as well as sensory loss in the trigeminal distribution. RESULTS: A middle cranial fossa approach for decompression of the lateral internal auditory canal, labyrinthine segment of the facial nerve and the geniculate ganglion was performed. The patient's pain and numbness resolved immediately postoperatively, and the facial paralysis improved markedly. CONCLUSION: This result implicates a trigeminal-facial reflex as hypothesized by others. It suggests that decompression of the facial nerve can lead to improvement in motor and sensory function as well as relief of pain in some patients with combined trigeminal and facial nerve dysfunction.
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