Gamma knife radiosurgery for the treatment of cavernous sinus meningiomas: post-treatment long-term clinical outcomes, complications, and volume changes

doi:10.1007/s11060-019-03090-6

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Title:	Gamma knife radiosurgery for the treatment of cavernous sinus meningiomas: post-treatment long-term clinical outcomes, complications, and volume changes
Authors:	Yi-Chieh Hung(洪翊傑) Lee, Cheng-Chia Guo, Wan-Yuo Shiau, Cheng-Ying Chang, Yue-Cune Pan, David Hung-Chi Sheehan, Jason P. Chung, Wen-Yuh
Contributors:	Chi Mei Med Ctr, Dept Neurosurg Chia Nan Univ Pharm & Sci, Dept Hosp & Hlth Care Adm Univ Virginia Hlth Syst, Dept Neurosurg Taipei Vet Gen Hosp, Neurol Inst, Dept Neurosurg Natl Yang Ming Univ, Sch Med Taipei Vet Gen Hosp, Dept Radiol Taipei Vet Gen Hosp, Canc Ctr Tamkang Univ, Dept Math Taipei Med Univ, Shuang Ho Hosp, Dept Neurosurg
Keywords:	Cavernous sinus Meningioma Prognostic factor Radiosurgery
Date:	2019-06
Issue Date:	2020-07-29 13:48:55 (UTC+8)
Publisher:	SPRINGER
Abstract:	PurposeTo evaluate the outcomes of patients who underwent Gamma Knife radiosurgery (GKRS) for the treatment of cavernous sinus (CS) meningiomas.MethodsWe retrospectively reviewed the clinical and radiological outcomes of 95 patients with CS meningiomas at Taipei Veterans General Hospital between 1993 and 2011. The study cohort comprised 27 men and 68 women with a median age of 50years (range 29-79years). The median pre-GKRS tumor volume was 6.6ml (range 0.9-35.7ml). The median margin dose was 12Gy (range 11-21Gy). The clinical factors related to favorable outcomes were assessed.ResultsThe median follow-up period was 59 (range 12-209) months. At the final follow-up, the tumor volume regressed in 70 patients (74%) and progressed in eight (8%). Kaplan-Meier analysis revealed that the progression-free survival rates at 5 and 10years were 92.7% and 81.2%, respectively. Three patients (3.2%) experienced exacerbated cranial nerve dysfunction following radiosurgery. Confined tumors were found to be an independent prognostic factor for tumor control and shorter times to regression in the multivariable analyses. No risk factor for tumor progression was identified in either the univariate or multivariate analyses.ConclusionsGKRS provides good long-term tumor control and is associated with low cranial nerve-related morbidity development rates in patients with small- to medium-sized CS meningiomas. Confined tumor could be an independent prognostic factor for tumor control and shorter times to regression in multivariate analysis. Life-long follow-up is mandatory in such settings, even for outpatients with shrunken or stabilized tumors.
Relation:	Journal of Neuro-Oncology, v.143, n.2, pp.261-270
Appears in Collections:	[Dept. of Hospital and Health (including master's program)] Periodical Articles

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