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Related Experiment Videos

Gamma Knife radiosurgery for functioning pituitary microadenoma.

M S Kim1, S I Lee, J H Sim

  • 1Department of Neurological Surgery, Inje University Pusan Paik Hospital, Pusan, Korea. nsmsk@injc.inje.ac.kr

Stereotactic and Functional Neurosurgery
|February 22, 2000
PubMed
Summary
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Gamma Knife radiosurgery (GKRS) shows promise for pituitary microadenomas, particularly prolactinomas. While not a replacement for surgery, GKRS can be a valuable addition for managing these tumors.

Area of Science:

  • Neurosurgery
  • Endocrinology
  • Radiation Oncology

Background:

  • Transsphenoidal microsurgery is the standard treatment for pituitary microadenomas.
  • Gamma Knife radiosurgery (GKRS) is an alternative treatment modality for pituitary adenomas.

Purpose of the Study:

  • To evaluate the efficacy of GKRS in treating pituitary microadenomas.
  • To assess the impact of GKRS on hormone levels in patients with pituitary microadenomas.

Main Methods:

  • GKRS was performed on 23 patients with pituitary microadenomas.
  • Follow-up included endocrinological testing for hormone levels (prolactin and growth hormone).
  • Tumor doses ranged from 22 Gy to 35.7 Gy.

Main Results:

Related Experiment Videos

  • Of 15 patients with available endocrinological tests, 13 had prolactinomas and 2 had acromegaly.
  • Serum prolactin normalized in 3 patients, decreased in 8, and remained unchanged in 2.
  • Growth hormone secretion remained unchanged in acromegalic patients.

Conclusions:

  • GKRS is a potentially valuable adjuvant therapy for pituitary microadenomas.
  • GKRS may be effective in managing prolactinomas.
  • Further research is needed to establish the long-term efficacy of GKRS for pituitary microadenomas.