Clinical Summary of Influence of Mixed Tumor of Parotid Gland Individual Surgery on the Function of Facial Nerve

Objective To discuss the reason of facial nerve injury after surgical excision of parotid grand mixed tumor. Methods Individual surgery was performed in 76 patients with parotid gland mixed tumor and its influence on the function of facial nerve was observed. Results 26 patients(34%)had facial nerve paralysis and accounted. The incidence of facial nerve paralysis after parotid gland regional excision was 22.2%. The incidence was 37.9% after parotid gland shallow leaf and lump body excision and 46% after patotid gland whole leaf. 1 case was permanent facial nerve paralysis. Conclusion The surgery manner ,surgery scope,facial nerve ,facial nerve dissection method are the main reasons of influencing the function of facial nerve.The incidence of the facial paralysis is closely related with surgery manner, the location of tumor and facial nerve and the anatomy of facial nerve.