1. The acoustic nerve was preserved anatomically in 4 cases ( 16.7 % ) and functionally in 2 cases ( 8.3 % ).
2. Results Eighteen cases were astrocytoma, 2 cases meningioma, 2 cases oligodendrocytoma and 1 case was acoustic nerve tumor.
3. Intraoperative monitoring is a standard of care during carotid endarterctomy, correction of scoliosis , and resection of acoustic nerve tumors.
4. After treatment, 3 cases were yet abnormal. Conclusions:BAEP might be to comprehend the functions of periphery acoustic nerve and brainstem, is a objective index in the j...
5. MRI showed abnormal signs in the distal part of the acoustic nerve in 3 patients.