{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:02:42Z","timestamp":1787025762616,"version":"build-2736575974"},"reference-count":88,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,6]]},"abstract":"\n OBJECTIVE<\/jats:title>\n The authors retrospectively analyzed the follow-up data in 130 patients with intracranial benign meningiomas after Gamma Knife radiosurgery (GKRS), evaluated the tumor progression-free survival (PFS) rate and neurological function preservation rate, and determined the predictors by univariate and multivariate survival analysis.<\/jats:p>\n <\/jats:sec>\n \n METHODS<\/jats:title>\n \n This cohort of 130 patients with intracranial benign meningiomas underwent GKRS between May 2012 and May 2015 at the Second Hospital of Tianjin Medical University. The median age was 54.5 years (range 25\u201381 years), and women outnumbered men at a ratio of 4.65:1. All clinical and radiological data were obtained for analysis. No patient had undergone prior traditional radiotherapy or chemotherapy. The median tumor volume was 3.68 cm\n 3<\/jats:sup>\n (range 0.23\u201345.78 cm\n 3<\/jats:sup>\n ). A median margin dose of 12.0 Gy (range 10.0\u201316.0 Gy) was delivered to the tumor with a median isodose line of 50% (range 50%\u201360%).\n <\/jats:p>\n <\/jats:sec>\n \n RESULTS<\/jats:title>\n \n During a median follow-up of 36.5 months (range 12\u201380 months), tumor volume regressed in 37 patients (28.5%), was unchanged in 86 patients (66.2%), and increased in 7 patients (5.4%). The actuarial tumor progression-free survival (PFS) rate was 98%, 94%, and 87% at 1, 3, and 5 years, respectively, after GKRS. Tumor recurred in 7 patients at a median follow-up of 32 months (range 12\u201356 months). Tumor volume \u2265 10 cm\n 3<\/jats:sup>\n (p = 0.012, hazard ratio [HR] 8.25, 95% CI 1.60\u201342.65) and pre-GKRS Karnofsky Performance Scale score < 90 (p = 0.006, HR 9.31, 95% CI 1.88\u201346.22) were independent unfavorable predictors of PFS rate after GKRS. Of the 130 patients, 101 (77.7%) presented with one or more neurological symptoms or signs before GKRS. Neurological symptoms or signs improved in 40 (30.8%) patients, remained stable in 83 (63.8%), and deteriorated in 7 (5.4%) after GKRS. Two (1.5%) patients developed new cranial nerve (CN) deficit. Tumor volume \u2265 10 cm\n 3<\/jats:sup>\n (p = 0.042, HR = 4.73, 95% CI 1.06\u201321.17) and pre-GKRS CN deficit (p = 0.045, HR = 4.35, 95% CI 0.84\u201322.48) were independent unfavorable predictors for improvement in neurological symptoms or signs. Six (4.6%) patients developed new or worsening peritumoral edema with a median follow-up of 4.5 months (range 2\u20137 months).\n <\/jats:p>\n <\/jats:sec>\n \n CONCLUSIONS<\/jats:title>\n \n GKRS provided good local tumor control and high neurological function preservation in patients with intracranial benign meningiomas. Patients with tumor volume < 10 cm\n 3<\/jats:sup>\n , pre-GKRS Karnofsky Performance Scale score \u2265 90, and no pre-GKRS CN deficit (I\u2013VIII) can benefit from stereotactic radiosurgery. It can be considered as the primary or adjuvant management of intracranial benign meningiomas.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.3171\/2019.3.focus1956","type":"journal-article","created":{"date-parts":[[2019,6,7]],"date-time":"2019-06-07T19:09:58Z","timestamp":1559934598000},"page":"E7","source":"Crossref","is-referenced-by-count":23,"title":["Gamma Knife radiosurgery for intracranial benign meningiomas: follow-up outcome in 130 patients"],"prefix":"10.3171","volume":"46","author":[{"given":"Youlin","family":"Ge","sequence":"first","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dong","family":"Liu","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiyuan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanhe","family":"Li","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiguang","family":"Lin","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guokai","family":"Wang","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongqing","family":"Zong","sequence":"additional","affiliation":[{"name":"Departments of Neurosurgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Enhu","family":"Liu","sequence":"additional","affiliation":[{"name":"Neuroradiology, the Second Hospital of Tianjin Medical University, Tianjin, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"b1","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"1201","DOI":"10.3171\/2016.2.JNS152611","article-title":"Surgery for meningioma in the elderly and long-term survival: comparison with an age- and sex-matched general population and with younger patients","volume":"126","author":"Brokinkel B","year":"2017","unstructured":"Brokinkel B, Holling M, Spille DC, He\u00df K, Sauerland C, Bleim\u00fcller C, : Surgery for meningioma in the elderly and long-term survival: comparison with an age- and sex-matched general population and with younger patients. 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