Objective: This study aims to investigate the outcome of patients who have undergone vestibular
            nerve lesioning by Gentamicin injection before surgery to decrease postoperative morbidity
            especially balance problem. Also, we aimed to see the effect of lesioning on other
            outcome measures.
         
         
            
         
            Patients and Methods: We applied lesioning (preoperatively) for 17 patients who operated for vestibular
            schwannoma between 2000 and 2010 at Lund University Hospital. Then, we compared their
            outcomes with control group, matched by age, sex, and tumor size. Balance problem
            as reported by patients, Eq. 5D,KS,neurological score, and work status data were obtained
            and analyzed for both the groups.
         
         
            
         
            Results: Gentamicin injection showed significant difference between both the groups in balance
            and Eq. 5D components, with better result for gentamicin group. Whereas other outcome
            measures did not show significant difference between both groups.
         
         
            
         
            Conclusion: Vestibular nerve lesioning by gentamicin could be helpful in preventing postoperative
            balance problem and improving quality of life.