Microsurgery for acoustic neuroma and the facial-acoustic nerve protection

VernacularTitle:显微手术治疗听神经瘤与面听神经保护
Author: Xuejun ZHANG ; Wenjun CHEN ; Wei LIANG
Publication Type:Journal Article
Keywords: Neuroma,acoustic; Microsurgery
From: Chinese Journal of Primary Medicine and Pharmacy 2010;17(10):1320-1321
CountryChina
Language:Chinese
Abstract: Objective To explore the protection of the facial-acoustic nerve during microsurgery for acoustic neuroma via the suboccipital retrosigmoid approach. Methods The clinical data of 25 cases with acoustic neurinoma treated by the suboccipital retrosigmoid approach were retrospectively analyzed. Results Total removal was achieved in 22 patients and subtotal in 3 patients. 20 with Cochlear nerve anatomic preservation at 2 weeks after surgery and 3 patients with effective hearing and 13 patients lost effective hearing but retained measurable hearing and 9 patients completely lost hearing( the New Hannover Classification V grade). The facial nerve was preserved anatomically in 18,H-B Grade I ～ IV in 15,Grade V ～ VI in 10. There were not cerebrospinal fluid leakage, intracranial infection and death in all cases. Conclusion When operating,the relation between the tumor and the important structure surrounding could should be understood fully. Then removed the tumor piece by piece with microsurgical techniques. That the effective way to keep the facial nerve and its function being protected,and could improve the prognosis of the operation.