In an attempt to evaluate the possible beneficial effects of facial nerve decompression or steroid therapy in Bell's palsy, a vascular lesion, simulating Bell's palsy, was produced in the intratemporal facial nerve of monkeys with ultrasound irradiation. The influence of surgical decompression or steroid therapy on the recovery rate was studied. Facial nerve decompression had little effect on the rate of recovery of facial function. Dexamethasone did little to influence the eventual return of facial function. In a corticotropin-treated animal earlier clinical return of facial function was seen.
Boyle WF. Experimental Facial Nerve Paralysis: An Evaluation of Surgical and Medical Therapy. Arch Otolaryngol. 1972;95(4):313–316. doi:https://doi.org/10.1001/archotol.1972.00770080507004
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