R J Wiet1, B Mamikoglu, L Odom, D L Hoistad. 1. Division of Otolaryngology, Northwestern University Medical School, Evanston Hospital, Evanston Northwestern Health Care System, 1000 Central Street, Evanston, IL 60201, USA.
Abstract
OBJECTIVE: This retrospective study focuses on 2 outcome results after surgical intervention for acoustic neuroma: (1) facial nerve status, and (2) hearing preservation. STUDY DESIGN: A total of 484 patients with an acoustic neuroma. RESULTS: Postoperative facial nerve outcomes were significantly different (P < 0.001) according to the size of the tumors. Tumor size had even more influence on the immediate postoperative results. In addition, statistical significance (P < 0.05) was demonstrated in comparing facial nerve outcomes with the surgeon's surgical experience. We also noted that as the patient's age increases, the likelihood for facial dysfunction may increase for all postoperative intervals. The overall success rate of retaining useful hearing was 27% (26 of 95). Class A hearing was retained in 66% (10 of 15) of cases operated on through middle fossa approach in the last 5 years. CONCLUSION: This study demonstrates that tumor size and surgeon's experience are the most significant factors influencing the facial nerve status and hearing outcome after removal of acoustic neuroma.
OBJECTIVE: This retrospective study focuses on 2 outcome results after surgical intervention for acoustic neuroma: (1) facial nerve status, and (2) hearing preservation. STUDY DESIGN: A total of 484 patients with an acoustic neuroma. RESULTS: Postoperative facial nerve outcomes were significantly different (P < 0.001) according to the size of the tumors. Tumor size had even more influence on the immediate postoperative results. In addition, statistical significance (P < 0.05) was demonstrated in comparing facial nerve outcomes with the surgeon's surgical experience. We also noted that as the patient's age increases, the likelihood for facial dysfunction may increase for all postoperative intervals. The overall success rate of retaining useful hearing was 27% (26 of 95). Class A hearing was retained in 66% (10 of 15) of cases operated on through middle fossa approach in the last 5 years. CONCLUSION: This study demonstrates that tumor size and surgeon's experience are the most significant factors influencing the facial nerve status and hearing outcome after removal of acoustic neuroma.
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