Single-Fractionated Stereotactic Radiosurgery for Intracranial Meningioma in Elderly Patients: 25-Year Experience at a Single Institution

被引:15
作者
Hasegawa, Hirotaka [1 ]
Hanakita, Shunya [1 ]
Shin, Masahiro [1 ]
Koga, Tomoyuki [1 ]
Takahashi, Wataru [2 ]
Nomoto, Akihiro K. [2 ]
Sakuramachi, Madoka [2 ]
Saito, Nobuhito [1 ]
机构
[1] Univ Tokyo Hosp, Dept Neurosurg, Tokyo, Japan
[2] Univ Tokyo Hosp, Dept Radiat Oncol, Tokyo, Japan
关键词
Intracranial meningioma; Stereotactic radiosurgery; Elderly population; GAMMA-KNIFE RADIOSURGERY; CAVERNOUS SINUS MENINGIOMAS; TERM TUMOR-CONTROL; BENIGN MENINGIOMA; RADIATION-THERAPY; BRAIN METASTASES; SURGERY; EDEMA; COMPLICATIONS; RADIOTHERAPY;
D O I
10.1093/ons/opx109
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
BACKGROUND: Stereotactic radiosurgery (SRS) has been accepted as a therapeutic option for intracranial meningiomas; however, the detailed data on outcomes in elderly patients remain unclear. OBJECTIVE: To delineate the efficacy of SRS for meningiomas in elderly patients. METHODS: The outcomes of 67 patients aged >= 65 yr who underwent SRS for benign intracranial meningioma (World Health Organization grade I) between 1990 and 2014 at our institution were retrospectively analyzed. The median age was 71 yr (range, 65-83 yr), and the mean and median follow-up were 62 and 52 mo (range, 7-195 mo), respectively. Tumor margins were irradiated with a median dose of 16 Gy, and the median tumor volume was 4.9 cm(3) (range, 0.7-22.9 cm(3)). RESULTS: Actuarial local tumor control rates at 3, 5, and 10 yr after SRS were 92%, 86%, and 72%, respectively. Previous surgery and parasagittal/falcine location were statistically significant predictive factors for failed tumor control. Mild or moderate adverse events were noted in 9 patients. No severe adverse event was observed. A higher margin dose was significantly associated with adverse events by univariate analysis. CONCLUSION: SRS is one of the standard therapies for meningiomas in elderly patients, providing both favorable tumor control and a low risk of adverse events under minimum invasiveness.
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收藏
页码:341 / 350
页数:10
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