腮腺良性肿瘤手术方式与面神经分支功能性损伤

目的：探讨腮腺良性肿瘤术后面神经及其主要分支功能损伤与肋腺切除手术方式及病理类型等的关系。方法：对99例经病理诊断为肋腺良性肿瘤的病例术后面神经及其主要分支功能情况进行临床观察和分析，以House-Backmann分级方法对面神经功能进行分组。结果：术后面神经暂时性损伤的机率为36．4％。永久性损伤为3％；肋腺全切术后面神经重要分支功能损伤发生率明显高于浅叶摘除术和节段切除术；下颌缘支功能损伤的机率较其他分支高。结论：面神经主要分支功能损伤与手术方式密切相关，适当选择手术方式可减少其发生机率。

Facial nerve dysfunction after various surgical managements for benign parotid tumor]

OBJECTIVE: To observe the incidence of facial nerve dysfunction following parotidectomy and the relationship of the extent of parotid gland resection and the histopathology types. METHODS: Clinical observation of 99 patients who underwent parotid surgery from 1996 to 2000 was studied to analyse the relation between facial nerve dysfunction and the extent of parotidectomy with House-Backmann grading system. RESULTS: The overall incidence of facial dysfunction (HB > 1) was 36.4% for temporary and 3% for permanent dysfunction; Most of the dysfunction were partial and most concerning the marginal mandibular branch (34/99). The temporary facial dysfunction rate in total parotidectomy is higher than that of superficial and local parotidectomy. CONCLUSION: The dysfunction of facial nerve branches is correlated with the surgical managements. The most facial never dysfunction is temporary. The size of the lesion and the histopathology types will influence the choice of surgical managements. A proper surgical managements would reduce the incidence of facial dysfunction.