{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T04:14:16Z","timestamp":1784693656148,"version":"3.55.0"},"reference-count":33,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"Suppl_2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JNS"],"published-print":{"date-parts":[[2014,12]]},"abstract":"<jats:sec><jats:title>Object<\/jats:title><jats:p>The aim of this study was to evaluate the tumor control rate and functional outcomes after Gamma Knife surgery (GKS) among patients with a facial nerve schwannoma.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The authors reviewed the radiological data and clinical records for 14 patients who had consecutively undergone GKS for a facial nerve schwannoma. Before GKS, 12 patients had facial palsy, 7 patients had hearing disturbance, and 5 patients had undergone partial or subtotal tumor resection. The mean and median tumor volumes were 3707 mm<jats:sup>3<\/jats:sup> and 3000 mm<jats:sup>3<\/jats:sup>, respectively (range 117\u201310,100 mm<jats:sup>3<\/jats:sup>). The mean tumor margin dose was 13.2 Gy (range 12\u201315 Gy), and the mean maximum tumor dose was 26.4 Gy (range 24\u201330 Gy). The mean follow-up period was 80.7 months (range 2\u2013170 months).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Control of tumor growth was achieved in all 12 (100%) patients who were followed up for longer than 2 years. After GKS, facial nerve function improved in 2 patients, remained unchanged in 9 patients, and worsened in 3 patients. All patients who had had serviceable hearing at the preliminary examination maintained their hearing at a useful level after GKS. Other than mild tinnitus reported by 3 patients, no other major complications developed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>GKS for facial nerve schwannomas resulted in excellent tumor control rates and functional outcomes. GKS might be a good primary treatment option for patients with a small- to medium-sized facial nerve schwannoma when facial nerve function and hearing are relatively preserved.<\/jats:p><\/jats:sec>","DOI":"10.3171\/2014.8.gks141504","type":"journal-article","created":{"date-parts":[[2018,11,16]],"date-time":"2018-11-16T10:56:53Z","timestamp":1542365813000},"page":"116-122","source":"Crossref","is-referenced-by-count":20,"title":["Gamma Knife surgery for facial nerve schwannomas"],"prefix":"10.3171","volume":"121","author":[{"given":"Ju Hyung","family":"Moon","sequence":"first","affiliation":[{"name":"Department of Neurosurgery,"},{"name":"Brain Tumor Center, and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Won Seok","family":"Chang","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery,"},{"name":"Gamma Knife Center,"},{"name":"Brain Research Institute, Yonsei University Health System, Seoul, Republic of 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