Oligoastrocytoma surgery

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

Surgery is the first-line treatment option for patients with oligoastrocytoma.^[1][2][3][4] CSF shunting is usually reserved for patients with hydrocephalus.^[5]

• Surgical resection is the first-line treatment option for patients with oligoastrocytoma.^[1][2][3]
• The aim of surgery is to:^[4]
  • Make a definitive diagnosis
  • Debulk the tumor to relieve elevated intracranial pressure
  • Reduce the tumor mass as a precursor to adjuvant treatment

• CSF shunting is performed to relieve the pressure in the brain due to blockade in the flow of cerebrospinal fluid due to oligoastrocytoma.^[5]
  • External ventricular drain – temporary shunt
  • Internal drain – permanent shunt
    • Drains CSF into the patient’s abdomen where it is absorbed into the body

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