A single institutional outcome analysis of Gamma Knife radiosurgery for single or multiple brain metastases

  • K. N
  • M. T
  • A. T
 et al. 
  • 4


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.


Although Gamma Knife stereotactic radiosurgery (SRS) is widely used for metastatic brain tumors, optimal patient selection and treatment strategy continue to be investigated. The aim of this study was to provide treatment results with Gamma Knife SRS and to establish prognostic factors. Of the 54 patients treated from 1990 to 1997, 51 patients were evaluable. There were 28 males and 23 females, with a median age of 60 years. Median Karnofsky Index was 80. There were 19 non-small cell lung cancers, eight colon cancers, six renal cell cancers, five ovarian cancers, four gastric cancers, three breast cancers, and six others. Primary tumors were controlled in 33 patients, and extracranial tumors were absent in 25 patients. Sixty-eight metastatic brain tumors in 37 patients underwent SRS as an initial treatment for the brain metastasis. Brain metastasis was solitary in 32 patients. Conventional radiation was combined with SRS in 29 patients, 24 of whom received whole brain radiotherapy. Eight patients had some form of surgical resection. Median survival time was 7.4 months. Five-year actuarial survival and local control rates were 16 and 52%, respectively. Median duration time of keeping pretreatment quality of life was 6.9 months. On a multivariate analysis, uncontrolled primary tumor, combined conventional radiotherapy, and performance status were statistically significant prognostic factors. Four patients who underwent whole brain radiation developed low grade dementia. Copyright © 2000 Elsevier Science B.V.

Author-supplied keywords

  • adult
  • aged
  • article
  • brain metastasis
  • brain radiation
  • computer assisted emission tomography
  • computer assisted tomography
  • dementia
  • female
  • gamma knife radiosurgery
  • human
  • major clinical study
  • male
  • nuclear magnetic resonance imaging
  • quality of life

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in


  • Nakagawa K.

  • Tago M.

  • Terahara A.

  • Aoki Y.

  • Sasaki T.

  • Kurita H.

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free